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阿部准教授の論文が『Neuroscience』に掲載されました

1605abe_neuroscience.png 阿部修士准教授(上廣こころ学研究部門)と、2014年度までこころの未来研究センターに日本学術振興会特別研究員として在籍していた伊藤文人東北福祉大学特任講師らの執筆した論文が、学術誌『Neuroscience』Vol.328 に掲載されました。


 本研究は機能的磁気共鳴画像法(fMRI)を用いて、老若男女様々な人物の顔に対する価値判断の神経基盤を調べた研究です。腹内側前頭前野と呼ばれる報酬の処理に関わる領域の活動が、男性参加者と女性参加者では異なっており、男性では顔の性別や世代の違いを顕著に反映することが明らかとなりました。


Ito A, Fujii T, Abe N, Kawasaki I, Hayashi A, Ueno A, Yoshida K, Sakai S, Mugikura S, Takahashi S, Mori E (2016)
Gender differences in ventromedial prefrontal cortex activity associated with valuation of faces
Neuroscience 328: 194-200

http://www.sciencedirect.com/science/article/pii/S0306452216301324 ※認証有り


○Abstract

Psychological studies have indicated that males exhibit stronger preferences for physical attributes in the opposite gender, such as facial attractiveness, than females. However, whether gender differences in mate preference originate from differential brain activity remains unclear. Using functional magnetic resonance imaging (fMRI), we investigated the patterns of brain activity in the ventromedial prefrontal cortex (vmPFC), a region critical for the valuation of faces, in response to elderly male, elderly female, young male, and young female faces. During fMRI, male and female subjects were presented with a face and asked to rate its pleasantness. Following fMRI, the subjects were presented with pairs of faces and asked to select the face that they preferred. We analyzed the vmPFC activity during the pleasantness-rating task according to the gender of the face stimulus (male and female) and the age of the face stimulus (elderly and young). Consistent with the results of previous studies, the vmPFC activity parametrically coded the subjective value of faces. Importantly, the vmPFC activity was sensitive to physical attributes, such as the youthfulness and gender of the faces, only in the male subjects. These findings provide a possible neural explanation for gender differences in mate preference.