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Studies of social behavior following localized brain lesions in several species of Old World monkeys suggest there is an anatomical substrate for the maintenance of social bonds. Destruction of either the amygdaloid nuclei, orbital frontal cortex or temporal pole results in varying degrees of social isolation or marked reductions in affiliative behaviors(More)
This study examined the effects on copulation-related and agonistic behaviors of repeated DMPA (depo-Provera) treatment of adult females in a heterosexual island colony of stumptail macaques (Macaca arctoides). Comparison of mean rates revealed a decrease in male approach to females and dominant male following of females after they were treated with DMPA.(More)
The relationship of serum testosterone concentration to male dominance rank and frequency of aggression was investigated in stable vervet monkey social groups, each containing two or three adult males, several adult females, and their offspring. Dominance relationships were determined by noting an animal's success in intermale aggressive encounters. A(More)
Letters Letter from the editors: A new kind of brain drain Arielle Borovsky i Articles Language origins without the semantic urge 13 Information Cognitive Science Online is an online journal published by the UCSD Cognitive Science Department and seeks to provide a medium for the cognitive science community in which to exchange ideas, theories, information,(More)
Two studies assessed (1) the effect of medroxyprogesterone acetate (MPA), Depo-Provera, on socio-sexual behaviors, and (2) the interaction between socio-environmental conditions and MPA treatment effects. Study One utilized two males and eight female members of a semi-free-ranging island colony. Females received 30 or 100 MPA IM or were untreated. Study Two(More)
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