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Species | Peter B GraySummaryAffiliation: Harvard University Country: USA Publications
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Publications
Fluctuating asymmetry of a foraging population: the Hadza of TanzaniaP B Gray
Department of Anthropology, Peabody Museum, Harvard University, Cambridge, MA 02138, USA
Ann Hum Biol 29:495-501. 2002..We present the first data on non-facial fluctuating asymmetry (FA) in a foraging population, the Hadza of Tanzania. We compare Hadza FA with FA of college students in New Mexico...- Marriage, parenting, and testosterone variation among Kenyan Swahili menPeter B Gray
Department of Anthropology, Harvard University, Cambridge, Massachusetts 02138, USA
Am J Phys Anthropol 122:279-86. 2003..Polygynously married men, all of whom had two wives, had higher T levels than all other Swahili men. Possible explanations of higher T levels among polygynously married men are explored... - HIV and Islam: is HIV prevalence lower among Muslims?Peter B Gray
Department of Anthropology, Peabody Museum, Harvard University, 11 Divinity Avenue, Cambridge, MA 02138, USA
Soc Sci Med 58:1751-6. 2004..g., vs. extramarital affairs) and other factors, but that benefits arising from circumcision may help account for lower HIV prevalence among Muslims... - Androgen receptor CAG repeats and body composition among Ariaal menBenjamin C Campbell
Department of Anthropology, University of Wisconsin Milwaukee, Milwaukee, WI 53211, USA
Int J Androl 32:140-8. 2009..These findings provide evidence for population variation in AR CAG repeat length and suggest that both T and AR CAG length play a role in body composition in this extremely lean population... - Age-related patterns of body composition and salivary testosterone among Ariaal men of Northern KenyaBenjamin C Campbell
Department of Anthropology, Boston University, 232 Bay State Road, Boston MA, 02215, USA
Aging Clin Exp Res 18:470-6. 2006..To determine age-related patterns of body composition and testosterone (T) among men in a subsistence population we sampled 104 nomadic and 102 settled men, ages 20+ years, among the Ariaal of northern Kenya... 
Salivary testosterone levels in men at a U.S. sex clubMichelle J Escasa
Department of Anthropology, University of Nevada, Las Vegas, 4505 S Maryland Parkway, Box 455003, Las Vegas, NV 89154 5003, USA
Arch Sex Behav 40:921-6. 2011....- Testosterone exposure, dopaminergic reward, and sensation-seeking in young menBenjamin C Campbell
Department of Anthropology, University of Wisconsin Milwaukee, 290 Sabin Hall, 3413 N Downer Ave, Milwaukee, WI 53211, USA
Physiol Behav 99:451-6. 2010..These results add to earlier reports of an association between T and sensation-seeking. In addition, our results also indicate that genetic variation in DRD4 is independently associated with SSS sensation-seeking... 
Dopamine receptor genetic polymorphisms and body composition in undernourished pastoralists: an exploration of nutrition indices among nomadic and recently settled Ariaal men of northern KenyaDan T A Eisenberg
Department of Anthropology, Northwestern University, Evanston, IL, USA
BMC Evol Biol 8:173. 2008..The Ariaal live in northern Kenya, are chronically undernourished and are divided socially among age-sets...- Age-related changes in body composition among Turkana males of KenyaBenjamin Campbell
Department of Anthropology, Boston University, Boston, Massachusetts 02215, USA
Am J Hum Biol 17:601-10. 2005..As such, they suggest that age-related patterns of fat-free mass in men may vary little across populations, while age-related patterns of adiposity are more closely related to environmental conditions... - Aging and human sexual behavior: biocultural perspectives - a mini-reviewPeter B Gray
Department of Anthropology, University of Nevada, Las Vegas, NV 89154 5003, USA
Gerontology 58:446-52. 2012..Because sexuality is typically expressed within pair-bonds, sexual behavior sometimes declines in both members of a couple with age, but also exhibits sex-specific effects that have their roots in evolved sex differences... - Social variables predict between-subject but not day-to-day variation in the testosterone of US menPeter B Gray
Department of Anthropology, Peabody Museum, Harvard University, Cambridge, MA 02138, USA
Psychoneuroendocrinology 29:1153-62. 2004.... - In the company of men: quality of life and social support among the Ariaal of northern KenyaBenjamin C Campbell
Department of Anthropology, University of Wisconsin Milwaukee, 3413 N Downer Avenue, Milwaukee, WI 53211, USA
J Cross Cult Gerontol 26:221-37. 2011..These results provide the first clear demonstration of age-related declines in male quality of life and the importance of social support to men's quality of life in a subsistence population... - Fathers have lower salivary testosterone levels than unmarried men and married non-fathers in Beijing, ChinaPeter B Gray
Department of Biochemistry, Harvard University, Cambridge, MA, USA
Proc Biol Sci 273:333-9. 2006..These data are the first outside of North America to show lower testosterone levels among fathers, and lend support to the theoretical view that male testosterone levels differ according to mating and parenting effort... - Romantic involvement often reduces men's testosterone levels--but not always: the moderating role of extrapair sexual interestMatthew McIntyre
Department of Epidemiology, Harvard School of Public Health, Harvard University, Boston, MA 02115, USA
J Pers Soc Psychol 91:642-51. 2006..Both studies found support for it. These results have implications for an understanding of the biosocial regulation of men's behavior in romantic relationships... - Evolutionary and cross-cultural perspectives on gamblingPeter B Gray
Department of Anthropology, Peabody Museum, Harvard University, Cambridge, Massachusetts 02138, USA
J Gambl Stud 20:347-71. 2004..Lastly, available demographic data on casino gambling hint at sex differences in the games played and the stakes wagered, but require further research for robust conclusions to be drawn... - Testosterone levels and mental rotation performance in Chinese menChi Fu Jeffrey Yang
Harvard Medical School, Boston, MA 02115, USA
Horm Behav 51:373-8. 2007..These observations suggest that differing cultural values regarding speed and accuracy may influence MRT performance--and that these values must be considered in future studies of testosterone and MRT measures... - Dose-dependent effects of testosterone on sexual function, mood, and visuospatial cognition in older menPeter B Gray
Charles Drew University of Medicine and Science, 1731 East 120th Street, Los Angeles, California 90059, USA
J Clin Endocrinol Metab 90:3838-46. 2005..When considered together with previous data from young men, these data indicate that testosterone dose-response relationships for sexual function and visuospatial cognition differ in older and young men...