作者单位:Evelyn F. McKnight Brain InstituteUniversity of ArizonaTucson,AZ[1]Department of Psychiatry and Behavioral Science and M.I.N.D. InstituteUC DavisSacramento,CA[2]California National Primate Research CenterUniversity of California, DavisDavis,CA[3]Department of PsychologyUniversity of CaliforniaDavis,CA[4]