Correction to: Molecular Psychiatry (2009) 14, 123–142; published online 12 August 2008; doi:10.1038/mp.2008.90

Following publication of this article, the authors became aware of the following errors.

The wrong article was cited for reference 192. The correct reference is:

Griffith J, Oates J, Cavanaugh J. Paranoid episodes induced by drugs. JAMA 1968; 205(11):39.

In addition, the authors would like to clarify the citing sentence, the third sentence of the second paragraph of the right column on page 134, to read:

In one study of four physically healthy volunteers with a previous history of amphetamine use, repeated hourly administration of 10 mg of oral dextroamphetamine produced initial euphoria, followed by depressive symptoms at cumulative dosages exceeding 50 mg, and full paranoid psychosis in all subjects at cumulative dosages between 120 and 750 mg.192