Leonardo F. Fontenelle

Leonardo F. Fontenelle


Our group uses a dimensional approach to transform our understanding of syndromes associated with obsessive-compulsive and related disorders (OCRDs), thus changing how these conditions are assessed, diagnosed, and ultimately treated. The bulk of our research on OCRDs phenotypes has modified classification and diagnostic practices, increased population awareness and influenced the discipline of psychiatry on an international level. We helped describing phenomenological and psychobiological correlates of different OCD subtypes/dimensions and confirmed the existence of transdiagnostic phenotypes (e.g. compulsivity) that cut across OCD and other OCRDs, such as body dysmorphic disorder, hoarding disorder and addictions. We are among the four most productive researchers in the world in obsessive-compulsive disorder (OCD) [2009-2018], with more than 8,000 citations

Keywords: Obsessive-compulsive disorder, compulsivity, impulsivity, psychopathology, nosology, classification.


M.D., Medicine, Fluminense Federal University

M.Sc. and Ph.D., Federal University of Rio de Janeiro

Postdoctoral Research Fellowship, Melbourne Neuropsychiatry Centre, University of Melbourne, Australia





Scientist of Our State, Carlos Chagas Filho Research Support Foundation, Rio de Janeiro (2014-)

Endeavour Research Fellowship Award, Department of Education, Employment, and Workplace Relations; Australian Government (2010)

Board Certified Psychiatrist (Brazilian Psychiatry Association)

Selected Publications

Yücel M, Lee RSC, Fontenelle LF. A New Consensus Framework for Phenotyping and Treatment Selecting in Addiction and Obsessive-Compulsive-Related Disorders. JAMA Psychiatry. 2021 Jul 1;78(7):699-700.
doi: 10.1001/jamapsychiatry.2021.0243

Brierley ME, Thompson EM, Albertella L, Fontenelle LF. Lifestyle interventions in the treatment of Obsessive-Compulsive and Related Disorders: A systematic review. Psychosom Med. 2021 Jul 23.
doi: 10.1097/PSY.0000000000000988

Fontenelle LF, Albertella L, Brierley ME, Thompson EM, Destrée L, Chamberlain SR, Yücel M. Correlates of obsessive-compulsive and related disorders symptom severity during the COVID-19 pandemic. J Psychiatr Res. 2021 Apr 13:S0022-3956(21)00198-9.
doi: 10.1016/j.jpsychires.2021.03.046

Fontenelle LF, Destrée L, Brierley ME, Thompson EM, Yücel M, Lee R, Albertella L, Chamberlain SR. The place of obsessive-compulsive and related disorders in the compulsive-impulsive spectrum: a cluster-analytic study. CNS Spectr. 2021 Apr 12:1-10.
doi: 10.1017/S109285292100033X

Thompson EM, Destree L, Albertella L, Fontenelle LF. Internet-Based Acceptance and Commitment Therapy: A Transdiagnostic Systematic Review and Meta-Analysis for Mental Health Outcomes. Behav Ther. 2021 Mar;52(2):492-507.
doi: 10.1016/j.beth.2020.07.002

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