[1] Univ Calif Davis, Ctr Neurosci, Davis, CA 95616 USA
[2] Univ Calif Davis, Dept Psychiat & Behav Sci, Davis, CA 95616 USA
[3] Univ Michigan, Mol & Behav Neurosci Inst, Ann Arbor, MI 48109 USA
[4] Univ Calif Irvine, Dept Psychiat & Human Behav, Irvine, CA 92697 USA
[5] Stanford Univ, Stanford Human Genome Ctr, Stanford, CA 94305 USA
[6] Stanford Univ, Dept Genet, Stanford, CA 94305 USA