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Appears in Collections:Psychology Journal Articles
Peer Review Status: Refereed
Title: Testosterone exposure, dopaminergic reward, and sensation-seeking in young men
Author(s): Campbell, Benjamin C
Dreber, Anna
Apicella, Coren L
Eisenberg, Dan T A
Gray, Peter B
Little, Anthony
Garcia, Justin R
Zamore, Richard S
Lum, J Koji
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Keywords: Testosterone
Dopaminergic reward system
Issue Date: Mar-2010
Date Deposited: 4-Dec-2013
Citation: Campbell BC, Dreber A, Apicella CL, Eisenberg DTA, Gray PB, Little A, Garcia JR, Zamore RS & Lum JK (2010) Testosterone exposure, dopaminergic reward, and sensation-seeking in young men. Physiology and Behavior, 99 (4), pp. 451-456.
Abstract: To test the relationship between androgen exposure, dopaminergic reward and sensation-seeking, we compared variation in salivary testosterone (T), 2D:4D digit ratio, facial masculinity, Zuckerman's sensation-seeking scale (SSS) and the D4 dopamine receptor (DRD4) genes from 98 young men, between the ages of 18 and 23 years. In univariate analyses, both salivary T and facial masculinity were significantly correlated with the SSS boredom susceptibility subscale, while the presence of the 7-repeat allele (7R+) in the dopamine receptor D4 gene was associated with the SSS thrill and adventure-seeking and overall sensation-seeking. Neither left nor right 2D:4D digit ratio was associated with any sensation-seeking scale. In multivariate models, salivary T and facial masculinity were significant predictors of SSS boredom susceptibility, while 7R+ was a significant predictor of SSS thrill and adventure-seeking. For overall SSS, both 7R+ and salivary T were significant predictors. There was no significant interaction of 7R+ and androgen exposure for SSS or any of the SSS subscales. 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.
DOI Link: 10.1016/j.physbeh.2009.12.011
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