Abstract # 149:

Scheduled for Sunday, September 14, 2014 07:00 PM-09:00 PM: Session 22 (Decatur B) Poster Presentation


ASSOCIATION BETWEEN STRESS AND SOCIAL BEHAVIOR ACROSS DEVELOPMENT IS SEX DEPENDENT IN MARMOSETS (CALLITHRIX GEOFFROYI)

M. C. Huffman and J. A. French
University of Nebraska at Omaha, Department of Psychology, 6001 Dodge St., Omaha, NE 68182, USA
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     Increased stress-related behavior has been associated with decreased social behavior. However, males and females may exhibit different social responses to stress over time. We examined temporal changes in the association between stress and social behavior throughout development in juvenile and subadult marmosets (Callithrix geoffroyi). Stress-related behavior (i.e., cage manipulations, alarm calls) was examined during a psychosocial stressor, and social behavior (i.e., play, allogrooming) was observed in undisturbed social groups at 6, 12, and 18 months of age (males: N=29; females: N=20). Male marmosets exhibited decreased alarm calling from 6 to 18 months; this pattern was associated with an increase in total play behavior over this same timeframe. Females also exhibited a decrease in alarm calls from 6 to 18 months, but this pattern was associated with a decrease in total play (b=-0.05, t(35)=-2.03, p<.05). In males, increased cage manipulations over time tended to be associated with increased play. In females, increased cage manipulations over time were associated with a trend towards decreased play (b=0.05, t(35)=1.95, p=.06). In males, as alarm calls decreased over time, there was no change in initiating allogrooming. However, in females, decreased alarm calls were associated with increased allogrooming (b=-0.01, t(35)=-2.33, p<.05). Thus, not all stress-related behavior is inversely associated with social behavior and is sex dependent. Specific stress-related behaviors should be examined individually to understand their relationship with social behavior.