He is founder and editor of NKA: Journal of Contemporary African Art, and serves as consulting editor for African Arts and Atlantica. (iniva.org)
He is on the board of directors of the College on Problems of Drug Dependence (2013 - 2017), and the board of consulting editors of Experimental and Clinical Psychopharmacology. (mcleanhospital.org)
He is past editor of Clinical Psychologist, serves and has served as consulting editor on prestigious international journals including Health Psychology, Journal of Anxiety Disorders and the Journal of Traumatic Stress and Cognitive Behavioural Psychotherapy. (psychlopaedia.org)