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Is a neutral face really evaluated as being emotionally neutral?

Authors
 Eun Lee  ;  Jee In Kang  ;  Il Ho Park  ;  Jae-Jin Kim  ;  Suk Kyoon An 
Citation
 Psychiatry Research, Vol.157(1-3) : 77-85, 2008 
Journal Title
 Psychiatry Research 
ISSN
 0165-1781 
Issue Date
2008
Abstract
Most of the functional neuroimaging studies on emotion have used neutral faces as a baseline condition. The aim of the present study was to explore whether prototypical neutral faces are evaluated as displaying neutral emotions. Twenty-one subjects performed the Extrinsic Affective Simon Task (EAST), a validated implicit task that measures the emotional evaluation of target stimuli. All stimuli consisted of two juxtaposed faces from standardized facial pictures. The attribute stimuli (positive vs. negative), which needed to be classified on the basis of extrinsic valence, were presented as black and white facial pictures. The target stimuli were color-filtered positive, negative, neutral, and positive/negative faces, and subjects were instructed to classify them on the basis of the filtered color (blue vs. green). The responses to the positive target faces were associated with the positive emotions and the responses to the negative target faces were associated with the negative emotions. For the neutral faces, the responses were similar to those of negative faces, while for the positive/negative stimuli, the responses were undifferentiated. These findings suggested that prototypical "neutral" faces may be evaluated as negative in some circumstances, which suggests that the inclusion of neutral faces as a baseline condition might introduce an experimental confound in functional neuroimaging studies.
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/106749
Full Text
http://www.sciencedirect.com/science/article/pii/S0165178107000352
DOI
10.1016/j.psychres.2007.02.005
Appears in Collections:
1. Journal Papers (연구논문) > 1. College of Medicine (의과대학) > Dept. of Psychiatry (정신과학교실)
1. Journal Papers (연구논문) > 5. Research Institutes (연구소) > Institute of Behavioral Sciences in Medicine (의학행동과학연구소)
Yonsei Authors
강지인(Kang, Jee In) ORCID logo https://orcid.org/0000-0002-2818-7183
김재진(Kim, Jae Jin)
박일호(Park, Il Ho)
안석균(An, Suk Kyoon) ORCID logo https://orcid.org/0000-0003-4576-6184
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