1 Department of Psychiatry, Parnassia Psychiatric Institute, Overschiestraat 57, Amsterdam 1062 HN, the Netherlands; Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK; St. John's National Academy of Health Sciences, Bangalore, India. Electronic address: r.vanwestrhenen@psyq.nl.
2 Department of Physiology and Pharmacology, Karolinska Institute, Stockholm, Sweden.