Accepted manuscript: Authors' Copy This peer-reviewed article has been accepted for publication but not yet copyedited or typeset, and so may be subject to change during the production process. The article is considered published and may be cited using its DOI. This is an Open Access article, distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives licence (http://creativecommons.org/licenses/by-nc-nd/4.0/), which permits non-commercial re- use, distribution, and reproduction in any medium, provided the original work is unaltered and is properly cited. The written permission of Cambridge University Press must be obtained for commercial re-use or in order to create a derivative work. An fMRI study of frontal networks in obsessive-compulsive disorder 1 during cognitive reappraisal 2 3 Víctor De la Peña-Arteaga 1,2,3 , Pedro Morgado 3,4,5 , Beatriz Couto 3,4 , Sónia Ferreira 3,4,5 , 4 Inês Castro 3,4 , Nuno Sousa 3,4,5 , Carles Soriano-Mas 1,6,7 , Maria Picó-Pérez 3,4,5,8 5 1. Psychiatry and Mental Health Group, Neuroscience Program, Institut d’Investigació Biomèdica de Bellvitge - 6 IDIBELL, L’Hospitalet de Llobregat, Spain. 7 2. Department of Clinical Sciences, School of Medicine, Universitat de Barcelona - UB, L’Hospitalet de Llobregat, 8 Spain. 9 3. Life and Health Sciences Research Institute (ICVS), School of Medicine, Universidade do Minho, Braga, Portugal. 10 4. ICVS/3B’s, PT Government Associate Laboratory, Braga/Guimarães, Portugal. 11 5. 2CA-Clinical Academic Center, Braga, Portugal. 12 6. Network Center for Biomedical Research on Mental Health (CIBERSAM), Instituto de Salud Carlos III (ISCIII), 13 Madrid, Spain. 14 7. Department of Social Psychology and Quantitative Psychology, Universitat de Barcelona - UB, Barcelona, Spain. 15 8. Departamento de Psicología Básica, Clínica y Psicobiología, Universitat Jaume I, Castelló de la Plana, Spain. 16 17 18 Corresponding author: Carles Soriano-Mas, Psychiatry and Mental Health Group, 19 Neuroscience Program, Institut d’Investigació Biomèdica de Bellvitge - IDIBELL, 20 L’Hospitalet de Llobregat, Spain. E-Mail: csoriano@idibell.cat 21 22 23 24 25 Running title: Frontal networks of cognitive reappraisal in OCD. 26 27 28 https://doi.org/10.1192/j.eurpsy.2022.2322 Published online by Cambridge University Press