[1] Univ Connecticut, Dept Psychol, Storrs, CT 06269 USA
[2] Univ Calif Berkeley, Dept Psychol, Berkeley, CA 94720 USA
[3] Brigham Young Univ, Dept Psychol, Provo, UT 84602 USA
[4] Univ Calif Berkeley, Dept Integrat Biol, Berkeley, CA 94720 USA
[5] Tufts Univ, Dept Anat & Cellular Biol, Medford, MA 02155 USA
[6] Univ Wisconsin, Lab Affect Neurosci, Madison, WI 53706 USA
[7] Stanford Univ, Sch Med, Stanford Ctr Res Dis Prevent, Stanford, CA 94305 USA
[8] Indiana Univ, Kinsey Inst Res Sex Gender & Reprod, Bloomington, IN USA
[9] Meharry Med Coll, Dept Anat & Physiol, Nashville, TN 37208 USA
[10] Univ Illinois, Dept Psychiat, Chicago, IL 60612 USA
[11] Univ La Laguna, Sch Med, Dept Physiol, Tenerife, Spain
[12] Univ La Laguna, Sch Med, CESEX, Tenerife, Spain
[13] Calif State Univ Stanislaus, Dept Psychol Cognit Studies, Turlock, CA 95382 USA
[14] Valparaiso Univ, Dept Psychol, Valparaiso, IN 46383 USA
[15] Erasmus MC, Dept Endocrinol & Reprod, Rotterdam, Netherlands
[16] Univ Med & Dent New Jersey, Robert Wood Johnson Med Sch, Piscataway, NJ 08854 USA