July 25, 2016 12:30 - 14:00

The Neural Mechanisms of Human Mate Copying

[Speaker] Xie, Jiajia:1
[Co-author] Zhuang, Jinying:1
1:East China Normal University (China (People's Republic of China))

The study aimed to investigate the neural mechanisms of human mate copying by manipulating same-sex models' attitude towards potential mates. Firstly, we conducted a behavioral-only experiment:participants were asked to rate the attractiveness of isolated opposite-sex faces, then shown the targets associating with a neutral-faced model with textual cues indicating the models' attitude (interested vs. not-interested) , and then re-evaluate the potential mates' attractiveness. Then, a functional magnetic resonance imaging (fMRI) study was conducted using the similar procedure as the behavioral-only experiment. The mate copying effect was confirmed in the behavioral-only experiment -greater increase in attractiveness ratings in the interested condition. fMRI results showed that the dorsolateral prefrontal gyrus was significantly active in the comparison of interested > not-interested conditions, and the activation of rostral medial prefrontal gyrus was significantly positively correlated with the effect of mate copying. These results suggested a key role of prefrontal cortex in human mate coping.
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