[1] Columbia Univ, Dept Pharmacol, New York, NY 10032 USA
[2] Columbia Univ, Dept Neurol, New York, NY 10032 USA
[3] Helen Hayes Hosp, Ctr Neural Recovery & Rehabil Res, W Haverstraw, NY 10993 USA
[4] Columbia Univ, Dept Psychiat, New York, NY 10032 USA
[5] Columbia Univ, Ctr Neurobiol & Behav, New York, NY 10032 USA