The study, published in the January American Journal of Psychiatry, was led by Tonmoy Sharma, M.R.C. Psych., at London’s Institute of Psychiatry. Sharma studied 67 individuals, 38 of whom were experiencing their first episode of psychosis; the remaining 29 were healthy volunteers with no history or evidence of psychiatric illness. In contrast to most other studies, 13 of Sharma’s patients with schizophrenia had little or no experience with any antipsychotic medication. Of those who were taking medication, the average duration of drug therapy was only 4.6 weeks.