[1] Univ Calif San Francisco, Keck Ctr Integrat Neurosci, Coleman Lab, Dept Otolaryngol, San Francisco, CA 94143 USA
[2] Univ Calif San Francisco, Keck Ctr Integrat Neurosci, Dept Physiol, San Francisco, CA 94143 USA
[3] Sci Learning Corp, Berkeley, CA 94104 USA