Article
Psychiatry
Mariela Rance, Zhiying Zhao, Brian Zaboski, Stephen A. Kichuk, Emma Romaker, William N. Koller, Christopher Walsh, Cheyenne Harris-Starling, Suzanne Wasylink, Thomas Adams Jr, Patricia Gruner, Christopher Pittenger, Michelle Hampson
Summary: This study aimed to use fMRI neurofeedback as a treatment for OCD. The results showed that neurofeedback targeting the aPFC can reduce symptoms in OCD, but did not significantly affect control over the aPFC. Future studies should optimize the training protocol and clarify the mechanism of action.
PSYCHIATRY RESEARCH
(2023)
Editorial Material
Clinical Neurology
Trevor. W. Robbins
Summary: This scientific commentary discusses the research conducted by Kim et al. on the unbalanced fronto-pallidal neurocircuit underlying set shifting in patients with obsessive-compulsive disorder, published in the journal Brain.
Article
Neurosciences
Xue Li, Hailong Li, Xi Jiang, Jing Li, Lingxiao Cao, Jing Liu, Haoyang Xing, Xiaoqi Huang, Qiyong Gong
Summary: This study comprehensively analyzed the modular architecture alterations in the brain connectome of patients with obsessive-compulsive disorder (OCD) and found that these alterations were associated with clinical symptoms. The findings provide further insights into the involvement of different modules in functional network dysfunction in OCD.
HUMAN BRAIN MAPPING
(2022)
Review
Clinical Neurology
Valerie La Buissonniere-Ariza, Kate Fitzgerald, Avner Meoded, Laurel L. Williams, Gary Liu, Wayne K. Goodman, Eric A. Storch
Summary: The systematic review of functional MRI studies in youths with negative valence disorders suggests that variations in neural functioning may impact response to CBT. However, the overall weak to moderate quality and limited number of studies, as well as the heterogeneity in study designs and results, considerably restrict the conclusions that can be drawn from this literature.
JOURNAL OF AFFECTIVE DISORDERS
(2021)
Article
Medicine, General & Internal
Marlee M. Vandewouw, Jessica Brian, Jennifer Crosbie, Russell J. Schachar, Alana Iaboni, Stelios Georgiades, Robert Nicolson, Elizabeth Kelley, Muhammad Ayub, Jessica Jones, Margot J. Taylor, Jason P. Lerch, Evdokia Anagnostou, Azadeh Kushki
Summary: This study used two large, independent data sets to identify subgroups of children with and without neurodevelopmental conditions with shared functional brain characteristics. The results showed that these subgroups were not aligned with current diagnostic categories but were associated with behavioral characteristics. This study's findings are an important step towards translating neurobiological subgroups into clinical settings and have been successfully replicated in independently collected data sets.
Review
Psychiatry
Louise Destree, Mary-Ellen E. Brierley, Lucy Albertella, Laura Jobson, Leonardo F. Fontenelle
Summary: This study conducted a systematic review on the relationships between childhood trauma and obsessive-compulsive symptoms (OCS) severity. The results showed a significant relationship between exposure to childhood trauma and OCS severity in both clinical and non-clinical populations. It was also found that a range of childhood trauma types, rather than a single type, was associated with OCD.
JOURNAL OF PSYCHIATRIC RESEARCH
(2021)
Review
Psychology, Clinical
Behrang Mahjani, Katharina Bey, Julia Boberg, Christie Burton
Summary: Obsessive-compulsive disorder (OCD) is a heritable, polygenic disorder with contributions from both common and rare genetic variants. Genetics play an important role in the susceptibility to OCD, with discrete OCD symptom dimensions having both shared and unique genetic risks. Genome-wide studies show that OCD shares genetic risk with its comorbid conditions.
PSYCHOLOGICAL MEDICINE
(2021)
Article
Psychiatry
Prerika Sharma, Maria C. Rosario, Ygor A. Ferrao, Lucy Albertella, Euripedes C. Miguel, Leonardo F. Fontenelle
Summary: This study investigated the characteristics of patients with comorbid generalized anxiety disorder (GAD) and obsessive-compulsive disorder (OCD), and found that comorbid GAD was associated with an increased number of avoidant behaviors and greater severity of anxiety.
PSYCHIATRY RESEARCH
(2021)
Article
Neurosciences
Xin Yuan, Yanyan Zhu, Li Xiao, Zi Chuan Liu, Jingzhi Zou, Zhizhong Hu, Yunhong Wu, Pan Li, Maorong Hu, Fuqing Zhou
Summary: This study aimed to investigate the brain functional impairment of patients with obsessive-compulsive disorder (OCD) with and without depressive symptoms. The results showed abnormal regional homogeneity values in specific brain regions of the patients with OCD and depression, which were correlated with the severity of symptoms.
NEUROSCIENCE LETTERS
(2023)
Article
Psychology, Multidisciplinary
Faranak Kadivari, Mahmoud Najafi, Vahid Khosravani
Summary: This study found that childhood maltreatment has both direct and indirect effects on obsessive-compulsive symptoms, with the indirect effect mediated by the behavioral inhibition system. The findings highlight the role of the behavioral inhibition system in linking childhood maltreatment to obsessive-compulsive symptomology.
CURRENT PSYCHOLOGY
(2023)
Article
Psychology, Clinical
Katherine Parkin, Shanquan Chen, Marjan Biria, James Plaistow, Helen Beckwith, Isaac Jarratt-Barnham, Nuria Segarra, Yulia Worbe, Naomi A. Fineberg, Rudolf N. Cardinal, Trevor W. Robbins, Emilio Fernandez-Egea
Summary: Obsessive-compulsive symptoms (OCS) commonly occur in patients treated with clozapine and can significantly affect subjective wellbeing. This study found that OCS severity had a negative impact on wellbeing scores, independent of depressive and psychotic symptoms. However, OCS did not impair general functioning. Obsessional thinking and hoarding behavior, rather than compulsions, were specifically associated with decreased wellbeing, possibly due to the nature of the compulsions.
PSYCHOLOGICAL MEDICINE
(2023)
Article
Clinical Neurology
Shruti S. Kinkel-Ram, William Grunewald, Shelby N. Ortiz, Joshua M. Magee, April R. Smith
Summary: This study revealed a bidirectional longitudinal relationship between eating disorders and obsessive-compulsive disorder, particularly in terms of cognitive symptoms.
JOURNAL OF AFFECTIVE DISORDERS
(2022)
Article
Clinical Neurology
Shruti S. Kinkel-Ram, William Grunewald, Shelby N. Ortiz, Joshua M. Magee, April R. Smith
Summary: The study found a bidirectional, longitudinal relationship between symptoms of eating disorders (ED) and obsessive-compulsive disorder (OCD), particularly in terms of cognitive symptoms. However, this longitudinal association was only present at certain time points.
JOURNAL OF AFFECTIVE DISORDERS
(2022)
Review
Psychiatry
Kevin Swierkosz-Lenart, Joao Flores Alves Dos Santos, Julien Elowe, Anne-Helene Clair, Julien F. Bally, Francoise Riquier, Jocelyne Bloch, Bogdan Draganski, Marie-Therese Clerc, Beatriz Pozuelo Moyano, Armin von Gunten, Luc Mallet
Summary: Although obsessive compulsive disorder (OCD) is a highly disabling disease, only a minority of patients seek specialized treatment. Current psychotherapeutic and pharmacological approaches are ineffective in around 10% of cases. Neuromodulation techniques, especially Deep Brain Stimulation, show promise for these cases, and knowledge in this field is constantly evolving. This paper aims to summarize the current knowledge on OCD treatment and discuss recent proposals for defining treatment resistance.
FRONTIERS IN PSYCHIATRY
(2023)
Article
Psychiatry
Sheila Cruz, Luis Gutierrez-Rojas, Pablo Gonzalez-Domenech, Francisco Diaz-Atienza, Jose M. Martinez-Ortega, Sara Jimenez-Fernandez
Summary: This study investigated the effectiveness of Deep Brain Stimulation (DBS) in patients with severe Obsessive Compulsive Disorder (OCD) who are resistant to pharmacological treatments. Through a systematic review and meta-analysis, it was found that DBS treatment significantly improved obsessive-compulsive symptoms, depression, anxiety, and functionality in these patients. The results emphasize the importance of DBS in OCD patients who do not respond to conventional pharmacological treatments.
PSYCHIATRY RESEARCH
(2022)
Review
Neurosciences
Maya Jammoul, Dareen Jammoul, Kevin K. Wang, Firas Kobeissy, Ralph G. Depalma
Summary: This article reviews the possible mechanisms by which traumatic brain injury (TBI) may stimulate the development of opioid use disorder (OUD) and discusses the interaction between these two processes. CNS damage due to TBI appears to drive adverse effects of subsequent OUD, with pain being a risk factor for opioid use after TBI.
BIOLOGICAL PSYCHIATRY
(2024)
Article
Neurosciences
Danusa Mar Arcego, Jan-Paul Buschdorf, Nicholas O'Toole, Zihan Wang, Barbara Barth, Irina Pokhvisneva, Nirmala Arul Rayan, Sachin Patel, Euclides Jose de Mendonca Filho, Patrick Lee, Jennifer Tan, Ming Xuan Koh, Chu Ming Sim, Carine Parent, Randriely Merscher Sobreira de Lima, Andrew Clappison, Kieran J. O'Donnell, Carla Dalmaz, Janine Arloth, Nadine Provencal, Elisabeth B. Binder, Josie Diorio, Patricia Pelufo Silveira, Michael J. Meaney
Summary: This study investigates the impact of environmental influences on mental health by integrating transcriptomic data from animal models with human data. The results suggest that hippocampal glucocorticoid-related transcriptional activity mediates the effects of early adversity on neural mechanisms implicated in psychiatric disorders.
BIOLOGICAL PSYCHIATRY
(2024)
Article
Neurosciences
Milenna T. van Dijk, Ardesheer Talati, Pratik Kashyap, Karan Desai, Nora C. Kelsall, Marc J. Gameroff, Natalie Aw, Eyal Abraham, Breda Cullen, Jiook Cha, Christoph Anacker, Myrna M. Weissman, Jonathan Posner
Summary: This study found that maternal stress is associated with future depressive symptoms and alterations in microstructure of the dentate gyrus (DG) in offspring. These results were consistent across two independent cohorts.
BIOLOGICAL PSYCHIATRY
(2024)
Article
Neurosciences
Josephine C. McGowan, Liliana R. Ladner, Claire X. Shubeck, Juliana Tapia, Christina T. LaGamma, Amanda Anqueira-Gonzalez, Ariana DeFrancesco, Briana K. Chen, Holly C. Hunsberger, Ezra J. Sydnor, Ryan W. Logan, Tzong-Shiue Yu, Steven G. Kernie, Christine A. Denny
Summary: Traumatic brain injury (TBI) leads to fear generalization by altering fear memory traces, and this symptom can be improved with (R,S)-ketamine.
BIOLOGICAL PSYCHIATRY
(2024)