[P468] High-definition transcranial direct current stimulation in hoarding disorder: a case report

*Marine Mondino^1,2, Cécilia Neige^1,2, Rémy Bation^2,3, Jérôme Brunelin^1,2 (1. Centre Hospitalier Le Vinatier, 2. Lyon Neuroscience Research Center, 3. Hospices civils de Lyon)

[P469] Deep Transcranial Magnetic Stimulation Treatment for Treatment-Resistant Obsessive-Compulsive Disorder: A Case Series from Thailand

*Waewwan Wongsaisuwan¹, Vasuthorn Virotjanakood¹, Nittaya Jarassaeng¹, Kusalaporn Chaiudomsom¹, Nawanant Piyavhatkul¹, Pongsatorn Paholpak¹ (1. Department of Psychiatry, Faculty of Medicine, Khon Kaen University)

[P470] Exploring immunological and molecular mechanisms involved in obsessive-compulsive disorder with comorbid neurodevelopmental disorders.

*Masahiko Sakurai¹, Kyosuke Yamanishi¹, Masaki Hata¹, Keiichiro Mukai¹, Shun Ogino¹, Yukihiko Hosoi¹, Hisato Matsunaga¹ (1. Department of Neuropsychiatry Hyogo College of Medicine)

[P471] Gray matter changes associated with clinical symptom improvement following pharmacological therapy in patients with obsessive-compulsive disorder: A source-based morphometry study

*Wi Hoon Jung¹, Euitae Kim^2,3 (1. Gachon University, 2. Seoul National University, 3. Seoul National University Bundang Hospital)

[P472] Pharmacological Effects of Paroxetine on hemodynamic changes measured by Near Infrared Spectroscopy in patients with Obsessive-Compulsive Disorder.

*Keiichiro Mukai¹, Yukihiko Hosoi¹, Shun Ogino¹, Kensei Maebayashi¹, Kazuhisa Hayashida¹, Hisato Matsunaga¹ (1. Hyogo medical university)

[P473] The deficits of decision-making confidence in obsessive-compulsive disorder

*Jia-Jia Zhou¹, Qi-Hui Guo¹, Gao-Yang Huang², Zi-Jian Cheng¹, Ru-Yuan Zhang^1,2, Qing Fan^1,3,4 (1. Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China, 2. Institute of Psychology and Behavioral Science, Antai College of Economics and Management, Shanghai Jiao Tong University, Shanghai, China, 3. Shanghai Key Laboratory of Psychotic Disorders, Shanghai, China, 4. Mental Health Branch, China Hospital Development Institute, Shanghai Jiao Tong University, Shanghai, China)

[P474] Drug-response relationship of escitalopram in obsessive compulsive disorder based on treatment outcome: A pharmacokinetic-pharmacodynamic modeling approach

*Seoyoung Kim¹, Bo-Hyung Kim², Euitae Kim ^1,3,4, Jun Soo Kwon^3,4,5 (1. Department of Neuropsychiatry, Seoul National University Bundang Hospital, Gyeonggi-do, Korea, 2. Department of Clinical Pharmacology and Therapeutics, Kyung Hee University Hospital, Republic of Korea, 3. Department of Psychiatry, Seoul National University College of Medicine, Seoul, Republic of Korea, 4. Department of Brain & Cognitive Sciences, College of Natural Sciences, Seoul National University, Seoul, Republic of Korea, 5. Department of Neuropsychiatry, Seoul National University Hospital, Seoul, Republic of Korea)

[P475] Treatment Challenges in Management of Adolescent Trichotillomania with Comorbidity: Evidence-Based Case per Case Approach

*Ireine Suantika Cornelia Roosdy¹, Edwin Ngantung² (1. Maria Walanda Maramis General Hospital, 2. Integra Mental Health Hub)

[P476] A significant effect of involvement behaviors on long-term treatment outcomes in Japanese patients with obsessive compulsive disorder (OCD)

*Erisa Yokozumi¹, Keiichiro Mukai¹, Shun Ogino¹, Yukihiko Hosoi¹, Masahiko Sakurai¹, Hisato Matsunaga¹ (1. Department of Neuropsychiatry Hyogo Medical University)

[P477] A preliminary examination on treatment effectiveness of augmentation with attention deficit hyperactivity disorder (ADHD) agents in patients with obsessive-compulsive disorder and comorbid ADHD

*Shun Ogino¹, Keiichiro Mukai¹, Masahiro Miyauchi, Takuya Hashimoto¹, Yukihiko Hosoi¹, Masahiko Sakurai¹, Hisato Matsunaga¹ (1. Department of Neuropsychiatry Hyogo College of Medicine)

[P478] An examination regarding subthreshold characteristics of attention deficit hyperactivity disorder (ADHD) and its clinical impact on psychopathological features and treatment outcome of obsessive-compulsive disorder (OCD)

*Yukihiko Hosoi¹, Keiichiro Mukai¹, Erisa Yokozumi¹, Shun Ogino¹, Masahiko Sakurai¹, Hisato Matsunaga¹ (1. Department of Neuropsychiatry Hyogo Medical College)

[P479] The efficacy of the novel 5-HT_1A receptor agonist DSP-1181 on obsessive-compulsive disorder like behavior in a mouse model of optogenetic neural modulation

*Fumiaki Sato¹, Yusuke Nagano¹, Daiki Tachibana¹, Hiroko Ikeda¹, Hideaki Imai¹, Tomomi Yamashita¹, Makiko Okuyama¹, Junko Tajima¹, Reiko Asada¹, Kenichi Fukumoto¹ (1. Drug Research Division, Sumitomo Pharma Co., Ltd., Osaka, Japan)

[P480] Human microbiota from drug-naive patients with obsessive-compulsive disorder drives behavioral symptoms and neuroinflammation via succinic acid in mice

*Dong-Dong Shi¹, Ying-Dan Zhang¹, Zhen Wang¹ (1. Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine)

[P481] Region-specific plastic changes in the prefrontal cortex drive compulsive task performance

*Nozomi Asaoka¹, Yasunori Hayashi¹ (1. Department of Pharmacology, Graduate School of Medicine, Kyoto University, Kyoto, Japan)

[P482] Personality Typing and Body Dissatisfaction in Korean Young Adults

*Solee Han¹, Hyun-Seung Chee^1,2 (1. Department of Psychiatry, Chungnam National University Hospital, Daejeon, Republic of Korea, 2. Institute of Brain Research, Chungnam National University Hospital, Daejeon, Republic of Korea)

[P483] Hitting Three Birds with One Stone: Lithium monotherapy in a Filipino with neurogenetic risk for chorea disorder diagnosed with trichotillomania, bipolar depression and social anxiety disorder

*Mitz Santander Serofia¹ (1. West Visayas State University Medical Center)

Session information

Obsessive-Compulsive Disorders