[1] Univ Calif Los Angeles, Sch Med, Dept Neurol, Lab Neuro Imaging, Los Angeles, CA 90024 USA
[2] Johns Hopkins Univ, Ctr Imaging Sci, Whitaker Biomed Engn Inst, Baltimore, MD USA
[3] Univ Calif Los Angeles, Dept Psychol, Los Angeles, CA 90024 USA
[4] Univ Calif Los Angeles, Brain Res Inst, Los Angeles, CA 90024 USA
[5] Univ Michigan, Dept Biostat, Ann Arbor, MI 48109 USA