Conference Program

9:00

Dynamic Structural Brain Changes in Anorexia Nervosa: Lessons Learned from Mega-Analysis, Meta-Analysis and Data Enrichment Approaches Stefan Ehrlich. TU Dresden, Faculty of Medicine, Division of Psychological a Social Medicine and Dept. of Child and Adolescent Psychiatry, Dresden, Germany

9:15

Eating disorder echo chambers on social media: A comparison of the TikTok algorithms belonging to individuals with eating disorders versus healthy controls Scott Griffiths1, Emily Harris1, Grace Whitehead1, Felicity Angelopoulos1, Ben Stone1, 2, Wesley Grey1, Simon Dennis1, 2. 1University of Melbourne, Melbourne, Australia.2Unforgettable Me, Melbourne, Australia

9:30

Neural Functioning in Prefrontal, Visual Processing, and Integrative Regions, but not Reward Regions, Differentiates Anorexia Nervosa from Low-Weight Avoidant/Restrictive Food Intake Disorder Sophie R. Abber1, 2, Kendra R. Becker1, 3, 4, Avery L. Van Der Water5, 10, Lauren Breithaupt1, 3, 4, Franziska Plessow1, 4, 5, Lilian P. Palmer1, 3, ChristopherAlyssaOliviaMegan MancusoIzquierdoWonsKuhnle5, JuliaMegan GydusSlattery1, 5, Kristine Hauser5, Elisa Asanza1, 5, Nadia Micali6, 7, Madhusmita Misra1, 4, 8, 9, Elizabeth A. Lawson1, 4, 5, Jennifer J. Thomas1, 3, 4, Laura Holsen1, 4, 10, 11, Kamryn T. Eddy1, 3, 4. 1Mass General Brigham Multidisciplinary Eating Disorders Research Collaborative, Boston, MA, USA.2Department of Psychology, Florida State University, Tallahassee, FL, USA.3Eating Disorders Clinical and Research Program, Department of Psychiatry, Massachusetts General Hospital, Boston, MA, USA.4Harvard Medical School, Boston, MA, USA.5Neuroendocrine Unit, Massachusetts General Hospital, Boston, MA, USA.6Mental Health Services of the Capital Region of Denmark, Copenhagen, Denmark.7Eating Disorders Research Unit, Ballerup Psychiatric Centre, Copenhagen, Denmark.8Department of Pediatrics, University of Virginia School of Medicine, Charlottesville, VA, USA.9University of Virginia Health Childrena, Charlottesville, VA, USA.10Division of Womena, Boston, MA, USA.11Connors Center for Womena, Boston, MA, USA

9:45

META-ANALYSIS OF GLOBAL TISSUE VOLUMES AND REGIONAL GRAY MATTER VOLUMES IN ANOREXIA NERVOSA IN THE ACUTE AND RECOVERED STATE. ESTHER VIA1, 2, ANNA ARANDA1, LILIANA SZEGHALMI3, ADRIANA BASSA4, CHARLOTTE KEATING5, NARCIS CARDONER4, 6. 1Child and Adolescent Psychiatry and Psychology Department, Hospital Sant Joan de DAcu, Barcelona Spain.2Child and Adolescent Mental Health Research Group, Institut de Recerca Sant Joan de DAcu, Barcelona Spain.3Bethesda Hospital, Budapest, Hungary.4Department of Mental Health, Parc TaulAs University Hospital., Barcelona, Spain.5Swinburne University of Technology, Hawthorn, Australia.6Hospital de la Santa Creu i Sant Pau., Barcelona, Spain

10:00

Developing ENIGMA protocols for large-scale analysis of white matter properties in anorexia nervosa E. Caitlin Lloyd1, 2, Alexandra F. Muratore1, 2, Shuchen Hu3, Serena Gu1, 2, Julia Pines1, 2, Karin Foerde4, Marta PeApa-Gonzalez5, Stefan Ehrlich6, Paul Thompson7, Joanna Steinglass1, 2. 1Columbia University Irving Medical Center, New York, NY, USA.2New York State Psychiatric Institute, New York, NY, USA.3Teachersa, New York, NY, USA.4University of Amsterdam, Amsterdam, Netherlands.5Hospital Clinic de Barcelona, Barcelona, Spain.6TU Dresden, Dresden, Germany.7Keck School of Medicine of USC, Los Angeles, CA, USA

10:15

Persevering during reversal learning in adolescents with AN B. Van der Vijgh1, U.N. Danner1, 2, A.A. Van Elburg1, 2, 3, R.A.H. Adan1, 4, L. Keller5, 6, B. Herpertz-Dahlmann5. 1Altrecht Eating Disorders Rintveld, Zeist, Netherlands.2Utrecht University, Utrecht, Netherlands.3Co-Eur, Utrecht, Netherlands.4Utrecht University Hospital, Utrecht, Netherlands.5University Hospital RWTH Aachen, Aachen, Germany.6LVR University Hospital Essen, Essen, Germany

9:00

Mapping the familial and genetic basis of eating disorders: a comprehensive national register study of Denmark and Sweden. Joeri Meijsen1, 2, 3, Kejia Hu4, Stefana Aicoboaie1, 3, Helena Davies1, 3, Richard Zetterberg1, 2, JoAllle Pasman5, 6, Weimin Ye5, 7, Thomas Werge1, 2, 8, Cynthia Bulik5, 9, 10, Fang Fang4, Alfonso Buil1, 2, 8, Nadia Micali1, 3, 11. 1Institute of Biological Psychiatry, Mental Health Center Sct. Hans, Mental Health Services Copenhagen, Roskilde, Denmark.2The Lundbeck Foundation Initiative for Integrative Psychiatric Research (iPSYCH), Copenhagen, Denmark.3Center for Eating and feeding Disorders Research, Mental Health Center Ballerup, Copenhagen University Hospital a, Copenhagen, Denmark.4Unit of Integrative Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.5Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden.6Genetic Epidemiology, Department of Psychiatry, Amsterdam UMC location University of Amsterdam, Amsterdam, Netherlands.7Department of Epidemiology and Health Statistics, School of Public Health, Fujian Medical University, Fuzhou, China.8Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark.9Department of Psychiatry, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.10Department of Nutrition, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.11Great Ormond Street Institute of Child Health, University College London, London, United Kingdom

9:15

Psychiatric and Neurodevelopmental Symptoms in 600 Children with Suspected ARFID from a Swedish Population-Based Cohort Manda Nyholmer1, Marie-Louis Wronski2, 3, Liv Hog1, Ralf Kuja-Halkola1, Paul Lichtenstein1, Sebastian LundstrApm4, Henrik Larsson1, 5, Mark Taylor1, Cynthia M. Bulik1, 6, 7, Lisa Dinkler1. 1Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden.2Neuroendocrine Unit, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA.3Translational Developmental Neuroscience Section, Division of Psychological and Social Medicine and Developmental Neurosciences, Faculty of Medicine, TU Dresden, Dresden, Germany.4Gillberg Neuropsychiatry Centre, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.5School of Medical Sciences, A, A, Sweden.6Department of Psychiatry, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.7Department of Nutrition, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA

9:30

Genome-wide association studies of binge-eating behaviour and anorexia nervosa yield insights into the unique and shared biology of eating disorder phenotypes. Gerome Breen1, 2, Jet Termorshuizen3, Helena Davies4, Sang Hyuck Lee1, 2, Meilissa Munn-Chernoff5, Johan Zvrskovec KAcllberg1, 2, Jessica Johnson Genomics Consortium6, Laura M Huckins7, Cynthia M Bulik3, 6, 8, Jonathan RI Coleman1, 2, Eating Disorders Working Group Psychiatric Genomics Consortium1, 2, 3, 6, 7. 1Social, Genetic, and Developmental Psychiatry Institute of Psychiatry, Psychology, and Neuroscience King's College London, London, United Kingdom.2NIHR Maudsley Biomedical Research Centre, King's College London, London, United Kingdom.3Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden.4CEDaR - Center for Eating and feeding Disorders Research, Region Hovedstadens Psykiatri, Copenhagen, Denmark.5Community, Family, and Addiction Sciences Texas Tech University, Lubbock, TX, USA.6Department of Psychiatry, University of North Carolina, Chapel Hill, NC, USA.7Department of Psychiatry, Yale School of Medicine, New Haven, CT, USA.8Department of Nutrition, University of North Carolina, Chapel Hill, NC, USA

9:45

Construction of a Severity Index for Anorexia Nervosa Using Data from Danish Registers Zeynep Yilmaz1, 2, 3, Janne LT Larsen1, Hannah A Chatwin1, Ziping Zhang1, Loa Clausen4, Cynthia M Bulik2, 3, Liselotte V Petersen1. 1Aarhus University, Aarhus, Denmark.2Karolinska Institutet, Solna, Sweden.3University of North Carolina, Chapel Hill, NC.4Aarhus University Hospital, Skejby, Denmark

10:00

Adolescent-onset anorexia nervosa: health economics in a 30-year perspective Sandra Rydberg Dobrescu1, Lisa Dinkler1, 2, Carina Gillberg1, Christopher Gillberg1, 3, Maria RAystam1, 4, Kristian Bolin5, Elisabet Wentz6. 1Gillberg Neuropsychiatry Centre, Institute of Neuroscience and Physiology, University of Gothenburg, Gothenburg, Sweden.2Department of Medical Epidemiology and Biostatistics, Karolinska Institute, Stockholm, Sweden.3Department of Child and Adolescent Psychiatry, University of Glasgow, Glasgow, United Kingdom.4Department of Clinical Sciences Lund, Child and Adolescent Psychiatry, Lund University, Lund, Sweden.5Department of Economics, University of Gothenburg, Gothenburg, Sweden.6Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, University of Gothenburg, Gothenburg, Sweden

10:15

Adverse neonatal outcomes among children born to mothers with recent versus past eating disorders: A Danish register-based cohort study Hannah Chatwin1, Katrine Holde1, Natalie C Momen2, Zeynep Yilmaz1, Xiaoqin Liu1, Trine Munk-Olsen1, Katrine Strandberg-Larsen3, Nadia Micali4, Liselotte Vogdrup Petersen1. 11National Centre for Register-Based Research (NCRR), Aarhus University, Aarhus, Denmark.2Department of Clinical Epidemiology, Aarhus University, Aarhus, Denmark.3Department of Public Health, University of Copenhagen, Copenhagen, Denmark.4Mental Health Services in the Capital Region of Denmark, Center for Eating and Feeding Disorders Research, Psychiatric Centre Ballerup, Ballerup, Denmark

11:00

A RANDOMIZED ACUTE AUGMENTATION TREATMENT STUDY AND ADAPTIVE DESIGN: USING A SINGLE SESSION INTERVENTION TO ASSESS EARLY RAPID RESPONSE Tracey Wade1, Glenn Waller2. 1Flinders University Institute for Mental Health and Wellbeing, Adelaide, Australia.2Department of Psychology, Sheffield University, Sheffield, United Kingdom

11:15

Efficacy of individual cognitive remediation therapy (CRT) in anorexia nervosa: results from a French clinical trial in adolescent and adult inpatients. Sylvie Berthoz1, 2, Damien Ringuenet3, Anne Solene Maria4, Caroline Barry5. 1Univ. Bordeaux, INCIA CNRS UMR5287, Bordeaux, France.2Dept of Psychiatry, Institut Mutualiste Montsouris, Paris, France.3Paul Brousse Hospital, AP-HP, Villejuif, France.4Private Practice, Stimulus Consulting Ltd, Cascavelle, Mauritius.5CESP Inserm Univ. Paris Saclay, Villejuif, France

11:30

Psychoeducational and Motivational Treatment for children with low Weight Avoidant/Restrictive Food Intake Disorder James Lock, Nandini Datta, Brittany Matheson, Eliza Van Wye. Stanford University, Stanford, CA, USA

11:45

Longitudinal changes in set-shifting and central coherence among adolescents and young adults with anorexia nervosa Michael Zeiler1, Tanja Wittek1, Stefanie Truttmann1, Julia Philipp1, Konstantin Kopp1, Ulrike Schmidt2, Andreas Karwautz1, Gudrun Wagner1. 1Medical University of Vienna, Vienna, Austria.2King's College London, Institute of Psychiatry, Psychology a Neuroscience, London, United Kingdom

12:00

People Need People (PNP): Weight neutral treatment for patients with binge eating disorder and higher weight Trine Tetlie Eik-Nes1, 2, Charlotte Fiskum1, 2, KariAnne Vrabel3, 4, Kjersti Hognes Berg1, 2. 1Norwegian University of Science and Technology, Trondheim, Norway.2StjAcrdal Community Mental Health Centre, Levanger Hospital, StjAcrdal, Norway.3Research Institute, Modum Bad Psychiatric Centre, Vikersund, Norway.4University of Oslo, Oslo, Norway

12:15

A multi-stakeholder Delphi consensus on therapeutic targets and strategies for Eating Disorders treatment Antonio Verdejo-Garcia1, 6, Lauren Hanegraaf1, Erica Neill2, Emma Bryant3, 6, Evelyn Boon4, Simon Wilksch5, Bronny Carroll6, Shannon Calvert6, Fernando Fernandez-Aranda7, Sam Ikin6, Fiona Mitchell6, Rebecca Murphy8, Andrea Pillipou2, 6, Julian Robinson6, Christina Wierenga9, Sarah Maguire3, 6. 1Monash University, Melbourne, Australia.2Orygen, Melbourne, Australia.3University of Sydney, Sydney, Australia.4Singapore General Hospital, Singapore, Singapore.5Flinders University, Adelaide, Australia.6Australian Eating Disorders Research and Translation Centre, Sydney, Australia.7Bellvitge Hospital, Barcelona, Spain.8University of Oxford, Oxford, United Kingdom.9University of California San Diego, San Diego, CA, USA

11:00

MICROBIOTA IN ANOREXIA NERVOSA – DOUBLE-BLIND RCT STUDIES USING POLYUNSATURATED FATTY ACIDS AND PROBIOTICS WITHIN AN EUROPEAN NETWORK Andreas Karwautz1, Michael Zeiler1, Lara Keller2, Florian Fischmeister3, Kathrin Kollndorfer3, Jochen Seitz4, Astrid Dempfle5, NAdia Andreani6, John Baines6, Beate Herpertz-Dahlmann2. 1KJP, Medical University of Vienna, Vienna, Austria.2KJP, University Aachen, Aachen, Germany.3Radiology, Medical University Vienna, Vienna, Austria.4KJP, University Essen Duisburg, Essen, Germany.5Inst Med Informat a Stat. deUni Kiel, Kiel, Germany.6Max Planck Inst Evolutionary Biol, Uni Kiel, Kiel, Germany

11:15

FECAL MICROBIOME IN ANOREXIA NERVOSA: SHOTGUN GENOMICS SEQUENCING REVEALS MAJOR DIFFERENCES WITH CONTROLS AND LONGITUDINAL EFFECTS OF INPATIENT TREATMENT Nadia Andrea Andreani1, 2, Lara Keller3, Arunabh Sharma2, Karlijn Kooij4, Michael Zeiler5, Andreas Karwautz5, Roger Adan4, Beate Herpertz-Dahlmann3, Astrid Dempfle2, Jochen Seitz6, John F. Baines1, 2. 1Max Planck Institute for Evolutionary Biology, Ploen, Germany.2Kiel University, Kiel, Germany.3RWTH Aachen University, Aachen, Germany.4UMC Utrecht, Utrecht, Netherlands.5Medizinische UniversitAct Wien, Vienna, Austria.6LVR University Hospital Essen, Essen, Germany

11:30

INTERVENTIONS WITH PROBIOTICS AND OMEGA3 FATTY ACIDS IN AN ANOREXIA NERVOSA ANIMAL MODEL REDUCE HIPPOCAMPAL INFLAMMATION Jochen Seitz1, Beate Herpertz-Dahlmann2, Valerie Verspohl3, Anna Thelen3, Lilly Kneisel3, Stefanie Trinh3. 1Clinic for Child and Adolescent Psychiatry, LVR-University Hospital Essen, Essen, Germany.2Clinic for Child and Adolescent Psychiatry, RWTH-University Hospital Aachen, Aachen, Germany.3Institute of Neuroanatomie, RWTH-University Hospital Aachen, Aachen, Germany

11:45

Integrated Neuroimaging-Omics Analysis Reveals Gut-Brain Signaling Pathway Perturbations in Eating Disorders Brooks Brodrick1, Shuheng Gan1, Xiaowei Zhan1, Ehsan Shokri2, Sina Aslan2, Andrew Koh1, Carrie McAdams1. 1University of Texas Southwestern Medical Center, Dallas, TX, USA.2Advance MRI, Frisco, TX, USA

12:00

Microbial energy harvest and metabolic restoration during refeeding in patients hospitalized with malnutrition secondary to eating disorders Andrea K. Garber1, Sasha Gorrell 2, Amanda E. Downey 1, 2, Audrey Hernando 1, Ryan Rampersaud 2. 1University of California San Francisco, Dept Pediatrics , San Francisco, CA, USA.2University of California San Francisco, Dept Psychiatry, San Francisco, CA, USA

12:15

APPETITE HORMONES AND CYTOKINES IN YOUNG GIRLS AT HIGH RISK OF DEVELOPING ANOREXIA NERVOSA Elisabet Wentz1, Karin Dahlin1, Kajsa JAcrvholm2, 3, Annika Lekman1, Hayder Shweliyya1, Kaj Blennow1, Henrik Zetterberg1, Erik SchAcle4, Suzanne Dickson4, Jovanna Dahlgren2. 1Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, University of Gothenburg, Gothenburg, Sweden.2Department of Pediatrics, Institute of Clinical Sciences, University of Gothenburg, Gothenburg, Sweden.3Institute of Psychology, University of Lund, Lund, Sweden.4Department of Physiology, Institute of Neuroscience and Physiology, University of Gothenburg, Gothenburg, Sweden

2:00

Ultra-Processed Food: function, mechanism, purpose Chris van Tulleken . University College London, London, United Kingdom

3:30

The use of virtual reality for treatment innovation in eating disorders Valentina Cardi . King's College London, London, United Kingdom

3:50

Introducing a Sensory and Emotionally Assistive Toy into Eating Disorder Treatment Programs Dimitri Chubinidze . King's College London, London, United Kingdom

4:10

Avatar-based therapy for eating disorders: feasibility and pilot data Nina Kappel Hansen. University of Copenhagen, Copenhagen, Denmark

4:30

The Way Forward: New Digital Interventions to Improve Eating Disorder Treatment Outcomes Cheri Levinson . University of Louisville, Louisville, KY, USA

4:50

General discussion .

ASSESSMENT/CLASSIFICATION

1

Establishing the Measurement Invariance of the Eating Disorder Inventory Across Four Ethnoracial Groups Sarrah I. Ali1, Megan L. Rogers2, Chris Schatschneider1, Thomas E. Joiner1, Pamela K. Keel1. 1Florida State University, Tallahassee, FL, USA.2Texas State University, San Marcos, TX, USA

2

EXPLORING BODY-RELATED ATTENTIONAL BIAS IN EARLY ONSET ANOREXIA NERVOSA USING VIRTUAL REALITY AND EYE-TRACKING Mariarca Ascione1, Marta Carulla-Roig2, Helena Miquel-Nabau1, Franck Meschberger-Annweiler1, Eduardo Serrano-Troncoso2, Marta Ferrer-Garcia1, Jose Gutierrez-Maldonado1. 1University of Barcelona, Barcelona, Spain.2Hospital Sant Joan de DAcu of Barcelona, Barcelona, Spain

3

Unveiling Severity Indicators for Anorexia and Bulimia Nervosa Treatment Success: DSM-5 versus ICD-11 versus Drive for Thinness An B Dang1, Isabel Krug1, Roser Granero2, 3, 5, Isabel Sanchez2, 4, 5, 6, Laura Galvez4, 5, Jessica Jimenez-del Toro4, 5, Magda Rosinska2, 4, 5, , Susana Jimenez-Murcia2, 4, 5, 6, 7, Fernando Fernandez-Aranda2, 4, 5, 6. 1Melbourne School of Psychological Sciences, The University of Melbourne, Melbourne, Victoria, Australia, Melbourne, Australia.2Ciber FisiopatologAsa Obesidad y NutriciA³n (CIBERobn), Instituto Salud Carlos III, Barcelona, Spain.3Department of Psychobiology and Methodology, Universitat AutA²noma de Barcelonaa, Barcelona, Spain.4Department of Psychology, University Hospital of Bellvitge, Barcelona, Spain.5Psychoneurobiology of Eating and Addictive Behaviors Group, Neurosciences Program, Bellvitge Biomedical Research Institute (IDIBELL, Barcelona, Spain.6Department of Clinical Sciences, School of Medicine and Health Sciences, University of Barcelona, Barcelona, Spain.7Psychological Services, University of Barcelona, Barcelona, Spain

4

Assessing severity in anorexia nervosa using alternative criteria to the DSM-5 in a cross-sectional study sebastien Guillaume1, 2, Joanna Norton3, Maude Seneque1, 2, Esther Henriet1. 1Department of Psychiatric Emergency and Acute Care, CHRU, Montpellier, France.2Institute of Functional Genomics, CNRS, INSERM, University of Montpellier, Montpellier, France.3Institute for Neurosciences of Montpellier (INM), Inserm, University of Montpellier, Montpellier, France

5

TRANSLATION AND CROSS-CULTURAL ADAPTATION OF A HARMONIZED PORTUGUESE VERSION OF THE EATING DISORDER ASSESSMENT FOR DSM-5 (EDA-5) FOR BRAZIL AND PORTUGAL Rita Ramos1, Cassia Moulin2, Carlos Moraes2, B. Timothy Walsh3, JosAc Carlos AppolinAirio2, Paulo Machado1. 1University of Minho, School of Psychology, Braga, Portugal.2Federal University of Rio de Janeiro, Psychiatry Institute, Rio de Janeiro, Brazil.3Columbia University Irving Medical Center, NYC, NY, USA

6

Body Dissatisfaction, Binge Eating, and Compensatory Behaviors Are Central to Military Eating Disorder Pathology: A Multi Time-point Network Analysis April Smith1, Shruti Kinkel-Ram2, William Grunwald1, David Tubman3, Aaron Esche4, Cheri Levinson5. 1Auburn University, Auburn, AL, USA.2Miami University, Oxford, OH, USA.3USAF School of Aerospace Medicine, Wright-Patterson AFB, OH, USA.4Wright-Patterson Medical Center, Wright-Patterson AFB, OH, USA.5University of Louisville, Louisville, KY, USA

7

Binge Eating Automated Measure (BEAM): Development of an Automated Clinical Assessment for Binge Eating Lauren Taylor1, 2, Evan Forman1, 2, Adrienne Juarascio1, 2, Stephanie Manasse1, 2, Andrea Goldschmidt3. 1Center for Weight Eating and Lifestyle Science (WELL Center), Drexel University, Philadelphia, PA, USA.2Department of Psychology, Drexel University, Philadelphia, PA, USA.3Department of Psychiatry, University of Pittsburgh, Pittsburgh, PA, USA

8

A Scoping Review of Comorbidity of Night Eating Syndrome and Specified or Other Specified Eating Disorders Ruth S. Weissman1, Ava Hogan1, Isabella Pruscino1, Taylor Penwell2, Sarah Attaway2, Caitlin Martin-Wagar2. 1Wesleyan University, Middletown, CT, USA.2University of Montana, Missoula, MT, USA

BIOLOGICAL/RISK FACTORS

9

Emotional processing using the facial expression recognition task in Eating Disorders Matilde Andrade1, Vaz Ana2, Neves AntA³nio2, ConceiAsApo Eva3, Nogueira Marlene1, Sampaio Adriana1. 1Universidade do Minho, Braga, Portugal.2Universidade de Lisboa, Lisboa, Portugal.3Universidade do Porto, Porto, Portugal

10

Biopsychosocial Interplay in Obesity and Eating Disorders: Ghrelin, LEAP-2, and Psychopathological Pathways Isabel Baenas 1, 2, 3, 4, LucAsa Camacho-Barcia1, 2, 3, Roser Granero 2, 3, 5, Sara Tamarit6, Isabel SAinchez1, 2, 3, 7, Sulay Tovar3, 8, Susana JimAcnez-Murcia 1, 2, 3, 7, 9, Fernando FernAindez-Aranda 1, 2, 3, 7, 9. 1Department of Clinical Psychology, Bellvitge University Hospital, L'Hospitalet de Llobregat, Barcelona, Spain.2Psychoneurobiology of Eating and Addictive Behaviours, Neuroscience Program, Bellvitge Biomedical Research Institute (IDIBELL), L'Hospitalet de Llobregat, Barcelona, Spain.3CIBER Physiopathology of Obesity and Nutrition (CIBERobn), Instituto Salud Carlos III, Barcelona, Spain.4Doctoral Program in Medicine and Translational Research, University of Barcelona (UB), Barcelona, Spain.5Department of Psychobiology and Methodology, Autonomous University of Barcelona, Barcelona, Spain.6University of Barcelona, Barcelona, Spain.7Department of Clinical Sciences, School of Medicine and Health Sciences, University of Barcelona, L'Hospitalet de Llobregat, Barcelona, Spain.8Department of Physiology, CIMUS, University of Santiago de Compostela, Instituto de InvestigaciA³n Sanitaria (IDIS), Santiago de Compostela, Spain.9Psychology Services, University of Barcelona, Barcelona, Spain

11

The Indirect Effects of Internalized Stigma on Eating Disorder Symptoms Through Body Dissatisfaction in Sexual Minority Adults Tiffany A. Brown1, Dominic M. Denning2, Marley G. Billman Miller1. 1Auburn University, Auburn, AL, USA.2University of Massachusetts Amherst, Amherst, MA, USA

12

Associations between intraindividual variation in weekday-weekend sleep timing and duration and eating disorder pathology Kara A. Christensen Pacella1, Faith Kim2, Kelsie T. Forbush2, Angeline R. Bottera2. 1University of Nevada, Las Vegas, Las Vegas, NV, USA.2University of Kansas, Lawrence, KS, USA

13

Identifying Key Correlates of Binge Eating Among Adolescents in Food-Insecure Households Using a Machine Learning Approach Vivienne M. Hazzard1, Julian Wolfson2, Jerica M. Berge3, Marian Tanofsky-Kraff4, Melissa N. Laska1, Dianne Neumark-Sztainer1. 1Division of Epidemiology a Community Health, University of Minnesota School of Public Health, Minneapolis, MN, USA.2Division of Biostatistics a Health Data Science, University of Minnesota School of Public Health, Minneapolis, MN, USA.3University of Colorado, Anschutz Medical Campus, Aurora, CO, USA.4Uniformed Services University of the Health Sciences, Bethesda, MD, USA

14

Exploring the role of digit ratio in recovery from anorexia nervosa Prabhnoor Kaur1, Marita Cooper1, Samantha Turner1, C. Alix Timko1, 2. 1Children's Hospital of Philadelphia, Philadelphia, PA, USA.2Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA

15

Weight Perception and Intention to Lose Weight, Measures of Adiposity, and Unhealthy Weight Control Behaviors in a Sample of Black Adolescents Meredith R Kells1, Ying Meng1, Elizabeth Anson1, Joyce Smith2, Samantha Hahn2, Susan Groth1. 1University of Rochester School of Nursing, Rochester, NY, USA.2Central Michigan University College of Medicine, Mount Pleasant, MI, USA

16

Vitamin D in Anorexia Nervosa: Implications for Neuropsychological Functioning Paolo Meneguzzo1, 2, Enrico Collantoni1, 2, Valentina Meregalli1, 2, Elena Tenconi1, 2, Angela Favaro1, 2. 1Department of Neuroscience, University of Padova, Padova, Italy.2Padova Neuroscience Center, University of Padova, Padova, Italy

17

Positive Affect as a Potential Mediator Between Instagram Exposure and Disordered Eating Behaviors Maegan B. Nation1, Yiyang Chen2, Kelsie T. Forbush2, Kara A. Christensen Pacella1. 1University of Nevada, Las Vegas, Las Vegas, NV, USA.2University of Kansas, Lawrence, KS, USA

18

IMPOSTER SYNDROME SYMPTOMS POSITIVELY ASSOCIATED WITH EATING DISORDER RISK IN UNIVERSITY STUDENTS Shannon J. Sagert, Kara Christensen Pacella. University of Nevada, Las Vegas (UNLV), Las Vegas, NV, USA

COMORBIDITY

19

Somatic and psychiatric comorbidity profiles and the risk of involuntary treatment in patients with anorexia nervosa Line Bager1, Hannah Chatwin1, Katrine Holde1, Birgitte Dige Semark1, Mohammed Abdulkadir1, 2, Loa Clausen3, Liselotte Vogdrup Petersen 1. 1Aarhus University, Aarhus, Denmark.2University of Geneva, Geneva, Switzerland.3Aarhus University Hospital, Aarhus, Denmark

20

Autism and ADHD in Adult Patients With Bulimia Nervosa, Binge Eating Disorder, or Obesity: A Scoping Review Lauren Makin1, 2, Elisa Zesch3, Valeria Mondelli1, 2, Kate Tchanturia1, 3. 1King's College London, London, United Kingdom.2NIHR Maudsley Biomedical Research Centre, London, United Kingdom.3South London and Maudsley NHS foundation Trust, London, United Kingdom

21

The Prevalence of Comorbid Personality Disorders in Anorexia Nervosa: A Systematic Review and Meta-analysis Chantal Savard1, Sambrela Ang1, Xena Al-Hejji1, Micaela Ribeiro1, Gina Dimitropoulos2, Daniel Devoe1. 1Department of Psychology, Mount Royal University, Calgary, AB, Canada.2Department of Social Work, University of Calgary, Calgary, AB, Canada

DEVELOPMENTAL

22

Eating Disorder Psychopathology is Associated With Sensitivity to Social Rejection in a Community Sample of Adolescent Females Victoria Burmester, Chloe Wong, Dasha Nicholls. Imperial College London, London, United Kingdom

23

Maternal body satisfaction and weight talk effects on child eating behaviors Maya Day1, Alayna Bowlin1, Nicole Larson2, Lisa M. Anderson1, Carol B. Peterson1, Dianne Neumark-Sztainer2. 1Department of Psychiatry and Behavioral Sciences, University of Minnesota Medical School, Minneapolis, MN, USA.2Division of Epidemiology and Community Health, School of Public Health, University of Minnesota, Minneapolis, MN, USA

24

Body image of mothers of adolescent patients with Anorexia Nervosa Verena Langer, Anke W Dalhoff, Ida Wessing. Department of Child and Adolescent Psychiatry, University Hospital MA¼nster, MA¼nster, Germany

25

Social function in adolescent eating disorders: a lived experience framework for clinical practice Dasha Nicholls, Danielle Boules, Nikita Julius, Emerie Sheridan, Victoria Burmester. Imperial College, London, United Kingdom

26

SOCIAL AND EMOTIONAL FUNCTIONING IN ADOLESCENTS WITH EATING DISORDERS – A SYSTEMATIC REVIEW AND META-ANALYSES Anca SfAcrlea, Laura Nuding, Gerd Schulte-KAprne, Belinda Platt. Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, University Hospital, Ludwig-Maximilians University Munich, Munich, Germany

27

The role of emotional factorsin the understanding of food avoidance in children: a longitudinal study Juliette Taquet1, Rachel F. Rodgers2, Dries H. Bostyn1, Sandra Verbeken1, Lien Goossens1. 1Ghent University, Ghent, Belgium.2Northeastern University, Boston, MA, USA

EPIDEMIOLOGY

28

A META-ANALYSIS OF THE MORTALITY RATE IN EATING DISORDERS: AN UPDATE OF THE LITERATURE FROM 2010 TO 2024. Isabel Krug1, Shanshan Lui1, Sarah Croce1, Beta Dar1, Katrina Obleada2, Jade Portingale1, Veena Satheesh1, Meila Wong1, Matthew Fuller-Tyszkiewicz3. 1The University of Melbourne, Melbourne, Australia.2Northwestern University Feinberg School of Medicine, Chicago, IL, USA.3Deakin University, Melbourne, Australia

29

The Practice of Yoga and Associations with Body Image and Disordered Eating in a Population-Based Sample of Young Adults Dianne Neumark-Sztainer1, Melanie Wall2, Zhijun Zhang2, Nicole Larson1, Kaitlyn Adams1, 3, Niva Piran4. 1Division of Epidemiology and Community Health, School of Public Health, University of Minnesota, Minneapolis, MN, USA.2Department of Psychiatry, New York State Psychiatric Institute, Columbia University, New York, NY, USA.3School of Kinesiology, University of Minnesota, Minneapolis, MN, USA.4Department of Applied Psychology and Human Development, Ontario Institute for Studies in Education, Toronto, ON, Canada

30

Prevalence, Incidence, Impairment, Course, and Diagnostic Progression and Transition of Eating Disorders, Overweight, and Obesity in a Large Prospective Study of High-Risk Young Women Eric Stice1, Heather Shaw1, Sarah Siegel1, Kristen Gee1, Chris Desjardins2, Paul Rohde3. 1Stanford University, Stanford, CA, USA.2Saint Michael's College, Colchester, VT, USA.3Oregon Research Institute, Springfield, OR, USA

31

Medication Use in Severe Anorexia Nervosa: A Danish Register-based Study Ziping Zhang1, Hannah Chatwin1, Janne T Larsen1, Mohamed Abdulkadir1, Loa Clausen1, 2, 3, Esben Agerbo1, 4, 5, Trine Munk-Olsen1, 6, Kathrine B Madsen1, Bjarni J VilhjAilmsson1, 4, 5, 7, Liselotte V Petersen1, 4, 5, Zeynep Yilmaz1, 8, 9, 10. 1National Centre for Register-based Research, Aarhus University, Aarhus, Denmark.2Department of Child and Adolescent Psychiatry Aarhus University Hospital, Aarhus, Denmark.3Department of Clinical Medicine, Aarhus University, Aarhus, Denmark.4Center for Integrated Register-based Research(CIRRAU), Aarhus University, Aarhus, Denmark.5Lundbeck Foundation Initiative for Integrative Psychiatric Research (iPSYCH), Aarhus University, Aarhus, Denmark.6Department of Clinical Research, University of Southern Denmark, Odense, Denmark.7Bioinformatics Research Centre, Aarhus University, Aarhus, Denmark.8Department of Biomedicine, Aarhus University, Aarhus, Denmark.9Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden.10Department of Psychiatry, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA

GENETICS

32

Eating behaviours, depression and the use of antidepressants across the life span: A genetically sensitive cohort study Hiba Mutwalli1, 2, Moritz Herle3, Carol Kan1, 4, Claire Steves5, 6, Janet Treasure1, 7, Hubertus Himmerich1, 7, Ellen Thompson5, 8. 1Centre for Research in Eating and Weight Disorders (CREW), Department of Psychological Medicine, Institute of Psychiatry, Psychology a Neuroscience, Kinga, London, United Kingdom.2Department of Clinical Nutrition, College of Applied Medical Sciences, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia.3Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, United Kingdom.4Vincent Square Eating disorders Services, Central and North West London NHS Foundation Trust, London, United Kingdom.5Department of Twin Research and Genetic Epidemiology, School of Life Course Sciences a Population Sciences, Faculty of Life Sciences a Medicine, Kinga, London, United Kingdom.6Department of Ageing and Health, Guys and St Thomasa, London, United Kingdom.7Eating Disorders Unit, Bethlem Royal Hospital, South London and Maudsley NHS Foundation Trust (SLaM), London, United Kingdom.8School of Psychology, University of Sussex, Falmer, United Kingdom

MISCELLANEOUS

33

If you build it, will they come? Improving the reach and impact of eating disorders education. Deborah R. Glasofer1, Mae Winglass1, Natalia Torres Vilar2, Camilla Lindvall Dahlgren3, Evelyn Attia1, 4. 1New York State Psychiatric Institute/Columbia University Irving Medical Center, New York, NY, USA.2Universidad Peruana de Ciencias Aplicadas, Lima, Peru.3Oslo New University College, Oslo, Norway.4Weill Cornell Medical College/New York Presbyterian Hospital, New York, NY, USA

34

‘You’re Only Valid…if You’re Hot’: Qualitative Influences of Sexuality and Appearance Commentary on Queer Men’s Body Image Matthew F. Murray1, Aaron J. Blashill2, Elizabeth N. Dougherty1, Jennifer E. Wildes1, Melissa Simone3. 1University of Chicago, Chicago, IL, USA.2San Diego State University, San Diego, CA, USA.3University of Colorado Denver, Denver, CO, USA

35

NUTRITIONAL STATUS ACROSS EATING DISORDERS Margarita C Slof-Op 't Landt1, 2, Alexandra E Dingemans1, 2. 1Rivierduinen Eating Disorders Ursula, Leiden, Netherlands.2Department of Psychiatry, Leiden University Medical Center, Leiden, Netherlands

PSYCHOLOGICAL

36

Emotions, Emotion Regulation and Food Intake in Women with a Healthy Weight and Women with Obesity: a Daily Life Study Megane Ackermans1, Vera Heininga2, 3, Peter de Jong1, Nienke Jonker1. 1Department of Clinical Psychology and Experimental Psychopathology, University of Groningen, Groningen, Netherlands.2Department of Developmental Psychology, University of Groningen, Groningen, Netherlands.3Interdisciplinary Center Psychopathology and Emotion regulation, Department of Psychiatry, University Medical Center Groningen, Groningen, Netherlands

37

How Young People and Parents Perceive Change to Occur in Family Therapy for Anorexia Nervosa Julian Baudinet1, 2, Ivan Eisler1, 2, Anna Konstantellou1, Mima Simic1, 2, Ulrike Schmidt2, 3. 1Maudsley Centre for Child and Adolescent Eating Disorders (MCCAED), London, United Kingdom.2Centre for Research in Eating and Weight Disorders (CREW), London, United Kingdom.3Adult Eating Disorder Service, Maudsley Hospital, London, United Kingdom

38

Autobiographical Memories and Episodic Future Thinking in Eating Disorders: The Role of Victimization Experiences Sevgi Bektas1, 2, Rowan Haslam3, Johanna Louise Keeler 1, Shannon Hilton4, Valentina Cardi1, 5, Hubertus Himmerich1, 4, Janet Treasure1, 4. 1Centre for Research in Eating and Weight Disorders (CREW), Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, United Kingdom.2Department of Psychology, Hacettepe University, Ankara, Turkey.3University College London, Engineering Science Faculty, London, United Kingdom.4South London and Maudsley NHS Foundation Trust, London, London, United Kingdom.5Department of General Psychology, University of Padova, Padova, Italy

39

Food Insecurity in Individuals with Eating Disorders: A UK-Wide Survey of Impact, Help Seeking, and Suggestions for Guidance Callum Bryson1, Amelia Hemmings1, Basak Ince1, Carina Kuenhe1, Daire Douglas1, Matt Phillips1, Helen Sharpe2, Ulrike Schmidt1, 3. 1King's College London, London, United Kingdom.2The University of Edinburgh, Edinburgh, United Kingdom.3South London and Maudsley NHS Foundation Trust, London, United Kingdom

40

POST-TRAUMATIC GROWTH IN INDIVIDUALS RECOVERED FROM AN EATING DISORDER: A QUALITATIVE STUDY Valentina Cardi1, 2, Ludovica Natali1. 1Department of General Psychology, University of Padova, Padova, Italy.2Department of Psychological Medicine, King's College London, London, United Kingdom

41

Subjective Stress and Physiological Responses Before, During and After a Meal in Individuals Diagnosed with Eating Disorders Emma De Schuyteneer, Robin Quagebeur, Neide SimAmes Capela, Elske Vrieze. KU Leuven, Leuven, Belgium

42

Longitudinal Prediction of Suicidal Ideation among Adults with Eating Disorders: A Test of the Interpersonal Psychological Theory of Suicide Dorian R. Dodd1, Glen Forester1, Scott J. Crow2, Carol B. Peterson2, Emily M. Pisetsky3. 1Center for Biobehavioral Research, Sanford Research, Fargo, ND, USA.2University of Minnesota, Medical School, Minneapolis, MN, USA.3University of North Carolina School of Medicine, Psychiatry Department, Chapel Hill, NC, USA

43

Disordered Eating throughout Adolescence: The longitudinal Role of Emotional and Neurocognitive Correlates SAslvia FAclix1, 2, SA³nia GonAsalves1, 2, Andreia Ribeiro1, 2, Catarina Gomes1, Ana Tavares1, Eva ConceiAsApo3. 1Centro de InvestigaAsApo em Psicologia, Escola de Psicologia, Universidade do Minho, Braga, Portugal.2AssociaAsApo de Psicologia, Universidade do Minho, Braga, Portugal.3Faculdade de Psicologia e CiAoncias da EducaAsApo, Universidade do Porto, Porto, Portugal

44

Toward a triadic approach to cognitive difficulties in eating disorders: A first exploration with a clinical data cohort Valentin Flaudias1, 2, AurAclien Cornil1, Maude Seneque3, Sylvain Iceta4, SAcbastien Guillaume3. 1Nantes UniversitAc, Laboratoire de Psychologie des Pays de la Loire (LPPL UR 4638), Nantes, France.2CHU Clermont-Ferrand, PAale Psychiatrie B, Clermont-Ferrand, France.3Department of Emergency Psychiatry and Acute Care, Lapeyronie Hospital CHU, Montpellier, France.4DAcpartement de Psychiatrie et de Neurosciences, UniversitAc Laval, QuAcbec, QC, Canada Centre de Recherche de la, Quebec City, QC, Canada

45

Weight stigma internalization and emotion dysregulation: Investigating trait and state associations with eating disorder behaviors Lindsay Gillikin, Samantha Bedard, Christopher Mancuso, Kasey Stanton, Kyle De Young. University of Wyoming, Laramie, WY, USA

46

Naturalistic Symptom Trajectories of Atypical Anorexia Nervosa, Anorexia Nervosa, and Bulimia Nervosa in a Prospective Cohort Study of United States College Students Kelsey E. Hagan1, 2, Adanya Johnson3, Kira Venables3, Amanda Makara3, Spit for Science Working Group 4, Ann F. Haynos1, 3, 5. 1Department of Psychiatry, Virginia Commonwealth University, Richmond, VA, USA.2Institute for Women's Health, Virginia Commonwealth University, Richmond, VA, USA.3Department of Psychology, Virginia Commonwealth University, Richmond, VA, USA.4Institute for Research on Behavioral and Emotional Health, Richmond, VA, USA.5Department of Psychiatry and Behavioral Sciences, University of Minnesota, Minneapolis, MN, USA

47

Eating-disorder Psychopathology and Bariatric Surgery Weight Outcomes in Underserved Hispanic Patients in an Urban Hospital Valentina Ivezaj1, Brian Pittman1, Steven Em2, Dylan Cuva2, Manish Parikh2, Carlos Grilo1. 1Yale School of Medicine, New Haven, CT, USA.2New York University School of Medicine, New York City, NY, USA

48

Anorexia Nervosa (AN), Atypical AN, and Healthy Controls: Differences in Disordered Eating, Depression and Anxiety by Race/Ethnicity Yvette Karvay1, Julia Yermash1, Tatyana Bidopia1, Johanna M. Jarcho2, Natasha L. Burke1. 1Fordham University, Bronx, NY, USA.2Temple University, Philadelphia, PA, USA

49

Postoperative dumping syndrome, health-related quality of life, anxiety, depression and eating disturbances: results of a longitudinal obesity surgery study Astrid MA¼ller, Salih Efeler, Melanie Pommnitz, Martina de Zwaan. Hannover Medical School, Hanover, Germany

50

The interaction of treatment status, eating disorder pathology, and internalized weight stigma Caitlin Martin-Wagar1, Kate Bick1, Ruth Striegel Weissman2. 1University of Montana, Missoula, MT, USA.2Wesleyan University, Middletown, CT, USA

51

Exploring Community Experiences of Gender Euphoria: A Qualitative Analysis of Reddit Data Em J.E. Mittertreiner, Emilie Lacroix. University of New Brunswick, Fredericton, NB, Canada

52

Associations between military-specific traumatic events and inappropriate compensatory behaviors in a nationally representative sample of Veterans Robert W. Morgan1, Yiyang Chen1, Kelsie T. Forbush1, Marianna L. Thomeczek1, Sonakshi Negi1, Kara A. Christensen Pacella2, Alicia M. Wendler3, Angeline R. Bottera1, Chelsea Song4, Irina A. Vanzhula1, Alesha E. Doan1, Mary E. Oehlert3, Karen S. Mitchell5, 6, Mike Denning1. 1University of Kansas, Lawrence, KS, USA.2University of Nevada - Las Vegas, Las Vegas, NV, USA.3VA Eastern Kansas Healthcare System (VAEKHS), Topeka, KS, USA.4Purdue University, West Lafayette, IN, USA.5VA Boston Healthcare System, Boston, MA, USA.6Boston University, Boston, MA, USA

53

Benevolence and burnout: A cross-sectional evaluation of eating disorder clinician wellbeing, views, and experiences. Kat Novogrudsky1, Ulrike Schmidt1, 2, Janet Treasure1, 2. 1Center for Research in Eating and Weight Disorders, London, United Kingdom.2South London and Maudsley NHS Foundation Trust, London, United Kingdom

54

Eating Disorder Psychopathology and Emotional Eating in Adolescents: The Role of Stress and Food Insecurity. Ana LetAscia Pereira Andrade1, Jennifer L Temple1, 2. 1Community Health and Health Behavior, University at Buffalo, Buffalo, NY, USA.2Exercise and Nutrition Sciences, University at Buffalo, Buffalo, NY

55

Eating Disorder Behaviors and Temperament: A Comparison Between Athletes and Nonathletes in a Partial Hospitalization Program Tamara L Pryor1, Brooke R Lamphere1, Lauren E Ortiz1 2, Stephanie Vilenkin1, 2. 1EDCare, Denver, CO, USA.2University of Denver, Denver, CO, USA

56

EXPLORING THE RELATIONSHIP BETWEEN EMOTION REGULATION, INHIBITORY CONTROL, AND EATING PSYCHOPATHOLOGY IN A NON-CLINICAL SAMPLE Rita Ramos 1, Ana Rita Vaz2, TApnia Rodrigues1, Isabel Baenas3, Fernando Fernandez3, Paulo Machado1. 1University of Minho, School of Psychology, Braga, Portugal.2University of Lisbon, School of Medicine, Lisbon, Portugal.3University Hospital of Bellvitge-ICS, Barcelona, Spain

57

Preliminary Associations between Positive and Negative Implicit Learning and Outcome in a Transdiagnostic Sample of Adults with Eating Disorders Erin E. Reilly1, Carina Brown2, 3, Gregory G. Brown4, Amanda Bischoff-Grethe4, Glen Forester 5, Walter H. Kaye3, Christina E. Wierenga3. 1Department of Psychiatry and Behvaioral Sciences, University of California, San Francisco, San Francisco, CA, USA.2San Diego State University/University of California San Diego Joint Doctoral Program in Clinical Psychology, San Diego, CA, USA.3Eating Disorders Center for Treatment and Research, Department of Psychiatry, University of California, San Diego Health, San Diego, CA, USA.4Department of Psychiatry, University of California, San Diego, San Diego, CA, USA.5Center for Biobehavioral Research, Sanford Research, Fargo, ND, USA

58

Uncovering the heterogeneity of ARFID and related impairment in adults from the population Ricarda Schmidt1, Alexander Nettlau1, Lena Kramer1, Anne-Kathrin Merz1, Annick Martin2, Andreas Hiemisch3, Anja Hilbert1. 1Leipzig University Medical Center, Behavioral Medicine Research Unit, Department of Psychosomatic Medicine and Psychotherapy, Leipzig, Germany.2Leipzig University Medical Center, Department of Child and Adolescent Psychiatry, Psychotherapy and Psychosomatics, Leipzig, Germany.3Leipzig University Medical Center, Hospital for Children and Adolescents, Center for Pediatric Research, Leipzig, Germany

59

Different Facets of Loss of Control Over Eating Differentially Predict Response to Behavioral Weight Loss Treatment Lauren Taylor1, 2, Evan Forman1, 2, Zhuoran Huang1. 1Center for Weight Eating and Lifestyle Science (WELL Center), Drexel University, Philadelphia, PA, USA.2Department of Psychology, Drexel University, Philadelphia, PA, USA

60

The Mediating Role of Emotion Dysregulation Between Behavior Inhibition and Restrictive Eating Daniel Valerio Montero1, Scott J. Crow2, Carol B. Peterson2, Ann F. Haynos1, 2. 1Virginia Commonwealth University, Richmond, VA, USA.2University of Minnesota, Saint Paul, MN, USA

61

Examining the Role of Body Shame in the Relationship Between Multidimensional Perfectionism and Eating Disorder Symptoms in Black College Women Lauren K. Wash, Anna M. Bardone-Cone. University of North Carolina at Chapel Hill, Chapel Hill, NC, USA

62

An Exploration of Generational Status and Enculturation as Putative Protective Factors for Disordered Eating Among College Students Julia Yermash, Tatyana Bidopia, Yvette Karvay, Natasha L. Burke. Fordham University, Bronx, NY, USA

TRAUMA

63

Childhood Maltreatment, Compulsivity, and Change in Eating Disorder Symptoms Over Time in Anorexia Nervosa Elizabeth N. Dougherty1, Glen Forester2, Matthew F. Murray1, Brianne N. Richson2, Angeline R. Bottera3, Jennifer E. Wildes1. 1University of Chicago, Chicago, IL, USA.2Sanford Center for Biobehavioral Research, Fargo, ND, USA.3University of Kansas, Lawrence, KS, USA

64

Childhood trauma in patients with bariatric surgery – a comparison between women and men Barbara Mangweth-Matzek. University Hospital of Psychiatry II, Department of Psychiatry, Psychotherapy, Psychosomatics and Medical Psychology, Innsbruck, Austria

65

Eating Disorders and Body Dissatisfaction in Migrant Populations: A Scoping Review Silvia Tempia Valenta, Valeria Innella, Francesca Bonazzoli, Diana De Ronchi, Anna Rita Atti. Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy

TREATMENT/PREVENTION

66

Study protocol for a randomized controlled trial of a tailored online guided self-help intervention for people with eating disorders: the INTERconNEcT-EDs trial Gaia Albano1, Cristina Segura-Garcia2, Valentina Cardi3, Gianluca Lo Coco1. 1University of Palermo, Palermo, Italy.2University Magna Graecia, Catanzaro, Italy.3University of Padova, Padova, Italy

67

Unlocking Value: Can Increased Engagement Bolster the Cost-Effectiveness of Augmentative Interventions in Anorexia Nervosa? Suman Ambwani1, Janet Treasure2, 3, Valentina Cardi2, 4, Katie Rowlands2, Sabine Landau5, Ulrike Schmidt2, 3, Pamela Macdonald2, Jon Arcelus6, 7, David McDaid8. 1Department of Psychology and Cognitive Neuroscience, DIS Study Abroad in Scandinavia, Copenhagen, Denmark.2Centre for Research in Eating and Weight Disorders (CREW), Institute of Psychiatry, King's College London, London, United Kingdom.3South London and Maudsley NHS Foundation Trust, London, United Kingdom.4Department of General Psychology, University of Padova, Padova, Italy.5Department of Biostatistics and Health Informatics, Institute of Psychiatry, Psychology, and Neuroscience, King's College London, London, United Kingdom.6Institute of Mental Health, University of Nottingham, Nottingham, United Kingdom.7Bellvitge Biomedical Research Institute (IDIBELL), Hospitalet del Llobregat, Barcelona, Spain.8Care Policy and Evaluation Centre, Department of Health Policy, London School of Economics and Political Science, London, United Kingdom

68

Neurocognitive predictors of atypical antipsychotic prescription in youth with anorexia nervosa Pascal Beckert-McGirr1, Samantha Turner1, Marita Cooper1, Eliza Keefe1, C. Alix Timko1, 2 . 1Children's Hospital of Philadelphia, Philadelphia, PA, USA.2Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA

69

A brief emotion regulation training in children and adolescents with obesity: A feasibility study Elisa Boelens, Caroline Braet, Taaike Debeuf, Laura Wante, Brenda Volkaert, Sandra Verbeken. Ghent University, Ghent, Belgium

70

Expanding Treatment Options for Adolescent Anorexia Nervosa: A Pilot Study Exploring Early Weight Recovery in Adolescent and Parent Treatment (APT) Sarah Brandeis, Marion Roberts. Faculty of Medical a Health Sciences, University of Auckland, Auckland, New Zealand

71

Learning through bodily movement in school and sport: what about body insecurity? Solfrid Bratland-Sanda1, Jan-Michael Johansen1, Michael Reinboth1, Mathias Mandelid1, 2, Trine Tetlie Eik-Nes3, 4. 1University of South-Eastern Norway, BAc I Telemark, Norway.2Western University of Applied Sciences in Norway, Sogndal, Norway.3NTNU, Trondheim, Norway

72

Primary Outcomes from a Large-Scale Randomized Controlled Trial of a Brief, Peer-Co-Led, Group-Based Eating Disorder Prevention Program for Young Adult Sexual Minority Men Tiffany A. Brown1, Jessica Alexander2, Carolyn B. Becker3, Jerel P. Calzo2, Heather L. Corliss2, Justino J. Flores2, Hee-Jin Jun2, Devon Kimball2, Chii-Dean Lin2, Jacqueline Mitzner2, Stuart B. Murray4, Jamie-Lee Pennesi2, Jaclyn Siegel2, Juliana Tesselaar2, Aaron J. Blashill2, 5. 1Auburn University, Auburn, AL, USA.2San Diego State University, San Diego, CA, USA.3Trinity University, San Antonio, TX, USA.4University of Southern California, Los Angeles, CA, USA.5San Diego State University/University of California San Diego, Joint Doctoral Program in Clinical Psychology, San Diego, CA, USA

73

Comparing symptom networks of bulimia nervosa, anorexia nervosa, and binge eating disorder Ulrike Buhlmann1, Marieke Meier1, Richard J. McNally2, Jennie M. Kuckertz3, Karsten Braks4. 1University of Muenster, Muenster, Germany.2Harvard University, Cambridge, MA, USA.3McLean Hospital/Harvard Medical School, Belmont, MA, USA.4Klinik am Korso, Bad Oeynhausen, Germany

74

NEW INTENSIVE RENUTRITION PROTOCOL IN THE APPROACH OF EATING DISORDERS IN THE OUTPATIENT SETTING:A SAFE AND EFFICIENT OPTION Mar Carceller-sindreu1, Laia Arias i Queral2, Cristina carmona i Farres3, Gloria Faustino Bosch4, Leonor Patricia Gawron5, Laura Balaguer Cardona6, Soraya Carril Batuecas7, Aina Avila Parcet8, Sara Crivilles Mas9. 1Hospital de Sant Pau, Barcelona, Spain.2Hospital de Sant Pau, barcelona, Spain.3Hospital de Sant Pau, barcelona, Spain.4Institut de Recerca Sant Pau, barcelona, Spain.5Hospital de Sant Pau, barcelona, Spain.6Hospital de Sant Pau, barcelona, Spain.7Hospital de Sant Pau, barcelona, Spain.8Hospital de Sant Pau, barcelona, Spain.9Hospital de Sant Pau, barcelona, Spain

75

Repetitive transcranial magnetic stimulation effects on taste, smell, and body mass index – scoping review and meta-analyses. Eunice Chen1, Robert Seilheimer2, Prinjasi Das1, Shely Khaikin1, Greg Smutzer1, Casey Halpern2, 2024-2025 TEDp undergraduate team 1, Temple-Penn-SingHealth rTMS group 1, 2, 3. 1Temple University, Philadelphia, PA, USA.2Perelman School of Medicine University of Pennsylvania, Philadelphia, PA, USA.3Singapore Health Services (SingHealth), Singapore, Singapore

76

DISSONANCE-BASED EATING DISORDER PREVENTION: A RANDOMIZED CONTROLLED TRIAL OF BODY PROJECT IN PORTUGAL Carol Coelho, Rita Ramos, TAcnia Rodrigues, SA³nia GonAsalves, Paulo Machado. University of Minho, School of Psychology, Braga, Portugal

77

Improving the Uptake of Canadian Practice Guidelines for the Treatment of Pediatric Eating Disorders: An Implementation Science Protocol Jennifer Couturier, Maria Nicula. McMaster University, Hamilton, ON, Canada

78

Residential Versus Partial Hospitalisation for Eating Disorders: Effectiveness and Predictors of Clinical Outcomes Sinead Day1, Deborah Mitchison2, Haider Mannan1, Kathy Tannous1, Phillipa Hay1. 1Western Sydney University, Sydney, Australia.2University of Technology Sydney, Sydney, Australia

79

UNDERSTANDING PERSONALIZED DYNAMICS IN EATING DISORDERS: A DYNAMIC TIME WARP ANALYSIS Alexandra E. Dingemans1, 2, Erik J. Giltay2, Pieter J. Rohrbach3, Rita M.T. Slof-Op 't Landt1, 2. 1Rivierduinen Eating Disorders Ursula, Leiden, Netherlands.2Department of Psychiatry, Leiden University Medical Center, Leiden, Netherlands.3Faculty of Psychology, Open University, Heerlen, Netherlands

80

Changes in body composition during nutritional rehabilitation by 3-dimensional optical imaging during nutritional rehabilitation in patients hospitalized with malnutrition secondary to restrictive eating disorders Amanda E. Downey 1, 2, Sasha Gorrell2, Sara Buckelew1, Siena Vendlinski1, Andrea Garber1. 1University of California San Francisco, Dept. Pediatrics, San Francisco, CA, USA.2University of California San Francisco, Dept. Psychiatry, San Francisco, CA, USA

81

Cognitive-Behavioural Therapy for Outpatients with Anorexia Nervosa: A Systematic Review and Meta-Analysis of Clinical Effectiveness Heather C. Duggan, Gillian E. Hardy, Glenn Waller. University of Sheffield, Sheffield, United Kingdom

82

GUIDED AFFECTIVE IMAGERY IN ANOREXIA NERVOSA: FEASIBILITY AND ACCEPTANCE OF A POSSIBLE ADD-ON INTERVENTION Tenconi Elena1, 2, Martinelli Marisa3, Carraro Isabella1, Meregalli Valentina1, 2, Meneguzzo Paolo1, 2, Collantoni Enrico1, 2, Favaro Angela1, 2. 1Department of Neuroscience, University of Padova, Padova, Italy.2Padova Neuroscience Center, University of Padova, Padova, Italy.3International Study Center VIC Italy, Montegrott Terme (Padova), Italy

83

Athletes with Eating Disorders: Analysis of Their Clinical Characteristics, Psychopathology and Response to Treatment Fernando Fernando Fernandez-Aranda1, 2, 3, 4, Ana IbaApez-Caparros5, Isabel Sanchez1, 2, 3, 4, Roser Granero2, 3, 6, Magda Rosinska1, 2, 3, Ansgar Thiel7, Stephan Zipfel8, Lucia Camacho-Barcia2, 3, Susana Jimenez-Murcia1, 2, 3, 4. 1Clinical Psychology Department, Bellvitge University Hospital, Barcelona, Spain.2Psychoneurobiology of Eating and Addictive Behaviors Group, Neurosciences Programme, Bellvitge Biomedical Research Institute (IDIBELL), Barcelona, Spain.3Ciber FisiopatologAsa Obesidad y NutriciA³n (CIBERObn), Instituto de Salud Carlos III, Barcelona, Spain.4Department of Clinical Sciences, School of Medicine and Health Sciences, University of Barcelona, Barcelona, Spain.5Department of Psychiatry, University Hospital Germans Trias i Pujol, Badalona, Spain.6Departament de Psicobiologia i Metodologia de les CiAuncies de la Salut, Universitat AutA²noma de Barcelona, Barcelona, Spain.7Interfaculty Research Institute for Sport and Physical Activity, University of TA¼bingen, TA¼bingen, Germany.8Department of Psychosomatic Medicine, University of TA¼bingen, TA¼bingen, Germany

84

Bojo: An app-based daily body functionality appreciation journaling study Debra L. Franko, Julia Zalvino, Reese Giddens, Rachel F. Rodgers. Northeastern University, Boston, MA, USA

85

Treating negative body image in adolescents with eating disorders using an online training: A single-case experimental design Klaske A Glashouwer1, 2, A Evelien Doornbos-Burema2, Patrick Onghena3, Kristofor McCarty4, Piers L Cornelissen4. 1Department of Clinical Psychology and Experimental Psychopathology, University of Groningen, Groningen, Netherlands.2Department of Eating Disorders, Accare Child and Adolescent Psychiatry, Groningen, Netherlands.3Faculty of Psychology and Educational Sciences, Methods, Individual a Cultural Differences, Affect a Social Behavior, KU Leuven, Leuven, Belgium.4Department of Psychology, Faculty of health and Life Sciences, Northumbria University, UK, Northumbria, United Kingdom

86

EXPERIENCE BASED CO-DESIGN TO CO-CREATE INCLUSIVE AND ACCESSIBLE SELF-CARE TOOLS FOR EATING DISORDERS Amy Harrison1, Danielle Clarke-Bryan2, James Downs3, Nicky Smith4, Antionette Johnson5, Valentina Cardi2, Suman Ambwani6, Ashish Kumar7, Darcey Flemming1, Keria Herrington1, Melahat Akkese2, Katie Rowlands2, Janet Treasure2. 1University College London, London, United Kingdom.2King's College London, London, United Kingdom.3Independent Researcher and Expert by Experience, London, United Kingdom.4Patient Carer Representative, Manchester, United Kingdom.5thefatuglyblog.com, London, United Kingdom.6DIS Study Abroad in Scandinavia, Copenhagen, Denmark.7North West Boroughs Health Care NHS Foundation Trust, Cheshire, United Kingdom

87

EMDR as a complementary intervention in the treatment of anorexia nervosa Hartmut Imgart, Dumat Daniela. Parkland-clinic, Bad Wildungen, Germany

88

The usefulness of an intervention with a serious video game as a complementary approach to cognitive behavioural therapy in eating disorders: A pilot randomized clinical trial Susana Jimenez-Murcia1, 2, 3, 4, Cristina Vintro-Alcaraz5, Nuria Mallorqui-Bague5, Maria Lozano-Madrid6, Roser Granero2, 3, 6, Isabel Sanchez1, 2, 3, 4, Janet Treasure7, Fernando Fernandez-Aranda1, 2, 3, 4. 1Clinical Psychology Department, Bellvitge University Hospital, Barcelona, Spain.2Psychoneurobiology of Eating and Addictive Behaviours Group, Bellvitge Biomedical Research Institute (IDIBELL), Barcelona, Spain.3CIBER de FisiopatologAsa de la Obesidad y NutriciA³n (CIBERobn), Instituto de Salud Carlos III, Barcelona, Spain.4Department of Clinical Sciences, School of Medicine and Health Sciences, University of Barcelona, Barcelona, Spain.5Department of Psychiatry, Hospital de MatarA³, Consorci Sanitari del Maresme, Mataro, Spain.6Departament de Psicobiologia i Metodologia, Universitat AutA²noma de Barcelona, Barcelona, Spain.7King's College London, London, United Kingdom

89

Predictors of treatment outcome and quality of life in a sample of female adolescents and young adults with anorexia nervosa receiving outpatient psychotherapy Konstantin Kopp1, Tanja Wittek1, Stefanie Truttmann1, Michael Zeiler1, Helene Krauss1, Susanne Ohmann1, Sonja Werneck-Rohrer1, Ulrike Schmidt2, Andreas Karwautz1, Gudrun Wagner1. 1Medical University of Vienna, Department of child and adolescent psychiatry, Vienna, Austria.2King's College London, Institute of Psychiatry, Psychology a Neuroscience, London, United Kingdom

90

Never too old to learn? Cognitive behavioural therapy (CBT) focused on expectancy learning for (young) adults with avoidant/restrictive food intake disorder (ARFID): Design of a prospective study. Malou Masereel1, Sandra Mulkens1, Sebastian Cardona Cano2, Bibi Huskens3, Margo de Jonge4, Annemarie van Elburg5, 6. 1Maastricht University, Maastricht, Netherlands.2Youz, Rotterdam, Netherlands.3SeysCentra, Malden, Netherlands.4Novarum, Amsterdam, Netherlands.5Co-Eur, Utrecht, Netherlands.6Utrecht University, Utrecht, Netherlands

91

Cognitive Behavioral Therapy for Avoidant/Restrictive Food Intake Disorder (CBT-AR): An Evaluation Stephanie Miles1, 2, 5, Andrea Phillipou1-5, Erica Neill1, 2, Amanda Newbigin1, 6, Hannah Kim1, 6, Kamryn T. Eddy7-8, Jennifer J. Thomas7-8. 1Orygen, Melbourne, Australia.2The University of Melbourne, Melbourne, Australia.3St Vincent's Hospital, Melbourne, Australia.4Austin Health, Melbourne, Australia.5Swinburne University of Technology, Melbourne, Australia.6Melbourne Health, Melbourne, Australia.7Eating Disorders Clinical and Research Program, Massachusetts General Hospital, Boston, MA, USA.8Harvard Medical School, Boston, MA, USA

92

Treatment outcome in Eating disorder debut cases during COVID-19 lockdown: A contrast between pre pandemic and pandemic cases Lucero MunguAsa1, 2, 3, Isabel Baenas-Soto1, 2, 3, 4, Roser Granero-PAcrez1, 2, 3, 5, Noriaki Ohsako3, 6, AnahAs Gaspar-PAcrez1, 2, 3, 4, Magda Rosinska2, 3, Isabel SAinchez-DAsaz2, 3, Jessica JimAcnez-Del Toro2, 3, Jessica SAinchez-GonzAilez2, 3, Georgios Paslakis7, Susana JimAcnez-Murcia1, 2, 3, 8, Fernando FernAindez-Aranda1, 2, 3, 8. 1CIBER FisiopatologAsa Obesidad y NutriciA³n (CIBERobn), Instituto de Salud Carlos III, Barcelona, Spain.2Clinical Psychology Unit, University Hospital of Bellvitge, Barcelona, Spain.3Psychoneurobiology of Eating and Addictive Behaviors Group, Neurosciences Program, Bellvitge Biomedical Research Institute (IDIBELL), Barcelona, Spain.4Doctorate in Medicine and Translational Research Programme, University of Barcelona, Barcelona, Spain.5Department of Psychobiology and Methodology, Autonomous University of Barcelona, Barcelona, Spain.6Department of Psychiatry, Graduate School of Medicine, Chiba University, Chiba, Japan.7Medical Faculty, University Clinic for Psychosomatic Medicine and Psychotherapy, Ruhr-University Bochum, Luebbecke, Germany.8Department of Clinical Sciences, School of Medicine and Health Sciences, University of Barcelona, Barcelona, Spain

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Stakeholder perspectives regarding the implementation of recent Canadian practice guidelines for pediatric eating disorder treatment: Results from a cross-sectional survey Maria Nicula1, Jennifer L. Couturier1, 2. 1McMaster University, Hamilton, ON, Canada.2McMaster Children's Hospital, Hamilton, ON, Canada

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Deep-brain stimulation to the nucleus accumbens in severe enduring anorexia: the picture at long term follow-up Rebecca J Park1, 2, 3, Jessica Scaife1, 2, John Eraifej2, 4, 5, Alexander Green2, 4, 5, Tipu Aziz2, 4, 5. 1Department of Psychiatry, University of Oxford, Oxford, United Kingdom.2Oxford University Hospitals NHS Foundation Trust, Oxford, United Kingdom.3Oxford Health NHS Foundation Trust, Oxford, United Kingdom.4Nuffield Department of Surgical Sciences, University of Oxford, Oxford, United Kingdom.5Nuffield Department of Clinical Neuroscience, University of Oxford, Oxford, United Kingdom

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The Effectiveness and Feasibility and Effectiveness of a New Maudsley Collaborative Care Approach Skills-Based Training for Caregivers of Individuals with an Eating Disorder in the Netherlands Anne Schnitzler1, Jojanneke M Bijsterbosch1, Amy K Harrison2, Lot C Sternheim1. 1Dep. Clinical Psychology Utrecht University, Utrecht, Netherlands.2Psychology and Human Development UCL, London, United Kingdom

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A Meaning-Centered Intervention for Undergraduate Women with High Weight and Shape Concerns - Replication of a Randomized Controlled Trial Franziska Schutzeichel1, Marije aan het Rot1, Sanne F. W. van Doornik1, 2, Klaske A. Glashouwer1, 2, Mirjam I. Frey1, Peter J. de Jong1. 1University of Groningen, Groningen, Netherlands.2Accare Child and Adolescent Psychiatry, Groningen, Netherlands

97

Parents’ Knowledge of Psychotherapy, Shared Decision-Making, and Evidence: Clinicians’ Perspectives Kristin M. von Ranson, Leah Tobin, Meghan Muller. Department of Psychology, University of Calgary, Calgary, AB, Canada

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Internet-based transdiagnostic prevention of eating disorders and obesity in schools: results of the Healthy Teens @ Schools trial Karin Waldherr1, Michael Zeiler2, Rocio Herrero3, Dennis GAprlich4, Megan Jones Bell5, Stefanie Kuso1, Gudrun Wagner2, Andreas Karwautz2, Cristina Botella6, Rosa BaApos3, Corinna Jacobi7. 1FERNFH Distance Learning University of Applied Sciences, Wiener Neustadt, Austria.2Medical University of Vienna, Vienna, Austria.3Universidad de Valencia, Valencia, Spain.4UniversitAct MA¼nster, MA¼nster, Germany.5Google Health, Mountain View, CA, USA.6University Jaume I, Valencia, Spain.7Technische UniversitAct Dresden, Dresden, Germany

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BRIEF COGNITIVE BEHAVIOURAL THERAPY FOR ANOREXIA NERVOSA: FEASIBILITY, ACCEPTABILITY AND PRELIMINARY EVIDENCE OF EFFECTIVENESS Glenn Waller1, Charlotte Rose2, Hannah Turner3. 1Department of Psychology, University of Sheffield, Sheffield, United Kingdom.2Avon and Wiltshire Mental Health Partnership NHS Trust, Bristol, United Kingdom.3Southern Health NHS Foundation Trust, Southampton, United Kingdom

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Fluoxetine for Anorexia Nervosa after Weight Restoration: Moderation of Effect by Depression B. Timothy Walsh1, 2, Trevor C. Griffen1, 2, E. Caitlin Lloyd1, 2, Yuanjia Wang2, 3, Allan S. Kaplan4, 5, Evelyn Attia1, 2. 1Department of Psychiatry, Columbia University Irving Medical Center, New York, NY, USA.2New York State Psychiatric Institute, New York, NY, USA.3Department of Biostatistics, Mailman School of Public Health, Columbia University Irving Medical Center, New York, NY, USA.4Center for Addiction and Mental Health, Toronto, ON, Canada.5Center for Addiction and Mental Health, Toronto, ON, Canada

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Exploring self-disgust as key factor in anorexia nervosa: an interview study Stella Weiland1, Fleur Boonstra1, Peter J. de Jong1, Klaske A. Glashouwer1, 2. 1Department of Clinical Psychology and Experimental Psychopathology, University of Groningen, Groningen, Netherlands.2Department of Eating Disorders, Accare Child and Adolescent Psychiatry, Groningen, Netherlands