Beautiful faces have variable reward value: fMRI and behavioral evidence.

来自 dx.doi.org

喜欢 0

阅读量：

413

作者：

I Aharon，N Etcoff，D Ariely，CF Chabris，E O'Connor，HC Breiter

展开

摘要：

The brain circuitry processing rewarding and aversive stimuli is hypothesized to be at the core of motivated behavior. In this study, discrete categories of beautiful faces are shown to have differing reward values and to differentially activate reward circuitry in human subjects. In particular, young heterosexual males rate pictures of beautiful males and females as attractive, but exert effort via a keypress procedure only to view pictures of attractive females. Functional magnetic resonance imaging at 3 T shows that passive viewing of beautiful female faces activates reward circuitry, in particular the nucleus accumbens. An extended set of subcortical and paralimbic reward regions also appear to follow aspects of the keypress rather than the rating procedures, suggesting that reward circuitry function does not include aesthetic assessment.

展开

关键词：

melatonin melatonin onset (MO circadian phase phase angle of entrainment (PAE melatonin amplitude circadian period tau melatonin assays