Identifying Emotions on the Basis of Neural Activation.
Identifying Emotions on the Basis of Neural Activation.
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DOI:
10.1371/journal.pone.0066032
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发表时间:
2013
期刊:
影响因子:
3.7
通讯作者:
Just MA
中科院分区:
文献类型:
--
作者:
Kassam KS;Markey AR;Cherkassky VL;Loewenstein G;Just MA
We attempt to determine the discriminability and organization of neural activation corresponding to the experience of specific emotions. Method actors were asked to self-induce nine emotional states (anger, disgust, envy, fear, happiness, lust, pride, sadness, and shame) while in an fMRI scanner. Using a Gaussian Naïve Bayes pooled variance classifier, we demonstrate the ability to identify specific emotions experienced by an individual at well over chance accuracy on the basis of: 1) neural activation of the same individual in other trials, 2) neural activation of other individuals who experienced similar trials, and 3) neural activation of the same individual to a qualitatively different type of emotion induction. Factor analysis identified valence, arousal, sociality, and lust as dimensions underlying the activation patterns. These results suggest a structure for neural representations of emotion and inform theories of emotional processing.
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