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Variation in oxytocin is related to variation in affiliative behavior in monogamous, pairbonded tamarins.
Horm Behav 2010; 58(4):614-8HB

Abstract

Oxytocin plays an important role in monogamous pairbonded female voles, but not in polygamous voles. Here we examined a socially monogamous cooperatively breeding primate where both sexes share in parental care and territory defense for within species variation in behavior and female and male oxytocin levels in 14 pairs of cotton-top tamarins (Saguinus oedipus). In order to obtain a stable chronic assessment of hormones and behavior, we observed behavior and collected urinary hormonal samples across the tamarins' 3-week ovulatory cycle. We found similar levels of urinary oxytocin in both sexes. However, basal urinary oxytocin levels varied 10-fold across pairs and pair-mates displayed similar oxytocin levels. Affiliative behavior (contact, grooming, sex) also varied greatly across the sample and explained more than half the variance in pair oxytocin levels. The variables accounting for variation in oxytocin levels differed by sex. Mutual contact and grooming explained most of the variance in female oxytocin levels, whereas sexual behavior explained most of the variance in male oxytocin levels. The initiation of contact by males and solicitation of sex by females were related to increased levels of oxytocin in both. This study demonstrates within-species variation in oxytocin that is directly related to levels of affiliative and sexual behavior. However, different behavioral mechanisms influence oxytocin levels in males and females and a strong pair relationship (as indexed by high levels of oxytocin) may require the activation of appropriate mechanisms for both sexes.

Authors+Show Affiliations

Department of Psychology, University of Wisconsin-Madison, Wisconsin National Research Center, Madison, WI 53706, USA. Snowdon@wisc.eduNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, N.I.H., Extramural
Validation Studies

Language

eng

PubMed ID

20600045

Citation

Snowdon, Charles T., et al. "Variation in Oxytocin Is Related to Variation in Affiliative Behavior in Monogamous, Pairbonded Tamarins." Hormones and Behavior, vol. 58, no. 4, 2010, pp. 614-8.
Snowdon CT, Pieper BA, Boe CY, et al. Variation in oxytocin is related to variation in affiliative behavior in monogamous, pairbonded tamarins. Horm Behav. 2010;58(4):614-8.
Snowdon, C. T., Pieper, B. A., Boe, C. Y., Cronin, K. A., Kurian, A. V., & Ziegler, T. E. (2010). Variation in oxytocin is related to variation in affiliative behavior in monogamous, pairbonded tamarins. Hormones and Behavior, 58(4), pp. 614-8. doi:10.1016/j.yhbeh.2010.06.014.
Snowdon CT, et al. Variation in Oxytocin Is Related to Variation in Affiliative Behavior in Monogamous, Pairbonded Tamarins. Horm Behav. 2010;58(4):614-8. PubMed PMID: 20600045.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Variation in oxytocin is related to variation in affiliative behavior in monogamous, pairbonded tamarins. AU - Snowdon,Charles T, AU - Pieper,Bridget A, AU - Boe,Carla Y, AU - Cronin,Katherine A, AU - Kurian,Aimee V, AU - Ziegler,Toni E, Y1 - 2010/06/28/ PY - 2010/03/29/received PY - 2010/06/18/revised PY - 2010/06/23/accepted PY - 2010/7/6/entrez PY - 2010/7/6/pubmed PY - 2011/1/25/medline SP - 614 EP - 8 JF - Hormones and behavior JO - Horm Behav VL - 58 IS - 4 N2 - Oxytocin plays an important role in monogamous pairbonded female voles, but not in polygamous voles. Here we examined a socially monogamous cooperatively breeding primate where both sexes share in parental care and territory defense for within species variation in behavior and female and male oxytocin levels in 14 pairs of cotton-top tamarins (Saguinus oedipus). In order to obtain a stable chronic assessment of hormones and behavior, we observed behavior and collected urinary hormonal samples across the tamarins' 3-week ovulatory cycle. We found similar levels of urinary oxytocin in both sexes. However, basal urinary oxytocin levels varied 10-fold across pairs and pair-mates displayed similar oxytocin levels. Affiliative behavior (contact, grooming, sex) also varied greatly across the sample and explained more than half the variance in pair oxytocin levels. The variables accounting for variation in oxytocin levels differed by sex. Mutual contact and grooming explained most of the variance in female oxytocin levels, whereas sexual behavior explained most of the variance in male oxytocin levels. The initiation of contact by males and solicitation of sex by females were related to increased levels of oxytocin in both. This study demonstrates within-species variation in oxytocin that is directly related to levels of affiliative and sexual behavior. However, different behavioral mechanisms influence oxytocin levels in males and females and a strong pair relationship (as indexed by high levels of oxytocin) may require the activation of appropriate mechanisms for both sexes. SN - 1095-6867 UR - https://www.unboundmedicine.com/medline/citation/20600045/full_citation/Variation_in_Oxytocin_is_Related_to_Variation_in_Affiliative_Behavior_in_Monogamous_Pairbonded_Tamarins_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0018-506X(10)00174-1 DB - PRIME DP - Unbound Medicine ER -