Worley McKensie M, Boles David B
a Department of Psychology , University of Alabama , Tuscaloosa , AL , USA.
Laterality. 2016 Jul-Nov;21(4-6):672-688. doi: 10.1080/1357650X.2015.1136319. Epub 2016 Mar 7.
We used factor analysis to examine relationships among tasks that have previously shown right hemispheric processing asymmetries. We were interested in whether processing emotion displayed by a face constitutes a distinct perceptual process from processing other facial characteristics. Interest in this topic arose after Boles [ 1991 . Factor analysis and the cerebral hemispheres: Pilot study and parietal functions. Neuropsychologia, 29 ( 1 ), 59 - 91 ] found evidence of a common process underlying face processing and then Boles [ 1992 . Factor analysis and the cerebral hemispheres: Temporal, occipital and frontal functions. Neuropsychologia, 30 ( 11 ), 963 - 988 ] found evidence of a distinct process for the processing of the facial emotion. We used seven tasks that measured both face and non-face perception. Analysis of the asymmetries revealed measures from the five face tasks resulted in a single factor, thus failing to support the hypothesis that emotional face perception would involve a separate process from non-emotional face perception. A second factor revealed a separate process underlying enumeration, and a third factor revealed yet another process underlying line bisection. The results indicate that perceiving facial emotion results in right hemisphere processing, and faces as a whole are responsible for such processing.
我们运用因素分析来研究此前已显示出右半球加工不对称性的各项任务之间的关系。我们感兴趣的是，对面部所展现的情感进行加工是否构成一种有别于加工其他面部特征的独特知觉过程。在博尔斯[1991年。因素分析与大脑半球：初步研究及顶叶功能。《神经心理学》，29(1)，59 - 91]发现面部加工存在一个共同过程的证据，以及之后博尔斯[1992年。因素分析与大脑半球：颞叶、枕叶及额叶功能。《神经心理学》，30(11)，963 - 988]发现面部情感加工存在一个独特过程的证据之后，人们对这一主题产生了兴趣。我们采用了七项同时测量面部和非面部知觉的任务。对不对称性的分析显示，五项面部任务的测量结果形成了一个单一因素，因此未能支持这样一种假设，即对面部情感的知觉会涉及一个有别于对面部非情感知觉的单独过程。第二个因素揭示了计数背后的一个单独过程，第三个因素揭示了线段二等分背后的另一个过程。结果表明，对面部情感的知觉会导致右半球进行加工，并且整个面部负责此类加工。
