Correction to: Molecular Psychiatry (2007) 12, 620–629; doi:10.1038/sj.mp.4001985.

Following the online publication of the above article, the author chose to revise the Acknowledgments section:

I thank Dr John H Coverdale for his encouragement and thorough editorial comments. I would also like to thank Dr Gloria Benitez-King, The Instituto Nacional de Psiquiatria and the Doctorado de Ciencias Biomedicas de la UNAM. This work was supported in part by CONACYT, Mexico, Grant No. 46593-M.