2014年4月11日金曜日

Neural activity associated with enhanced facial attractiveness by cosmetics use

Ueno A, Ito A, Kawasaki I, Kawachi Y, Yoshida K, Murakami Y, Sakai S, Iijima T, Matsue Y, Fujii T.
Neurosci Lett. 2014 Mar 2;566C:142-146.

先日お会いした伊藤さん@京大の東北大時代の仕事かな?

同一人物の「化粧をした顔」と「化粧をしていない顔」。
ヒトは前者の方をより魅力的と感じ、それに対応して(報酬系の脳部位である)眼窩前頭皮質の活動も上昇する。

Previous psychological studies have shown that make-up enhances facial attractiveness. Although neuroimaging evidence indicates that the orbitofrontal cortex (OFC) shows greater activity for faces of attractive people than for those of unattractive people, there is no direct evidence that the OFC also shows greater activity for the face of an individual wearing make-up than for the same face without make-up. Using functional magnetic resonance imaging (fMRI), we investigated neural activity while subjects viewed 144 photographs of the same faces with and without make-up (48 with make-up, 48 without make-up, and 48 scrambled photographs) and assigned these faces an attractiveness rating. The behavioral data showed that the faces with make-up were rated as more attractive than those without make-up. The imaging data revealed that the left OFC and the right hippocampus showed greater activity for faces with make-up than for those without make-up. Furthermore, the activities of the right anterior cingulate cortex, left hippocampus, and left OFC increased with increasing facial attractiveness resulting from cosmetics use. These results provide direct evidence of the neural underpinnings of cosmetically enhanced facial attractiveness.

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