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Titolo:
PATTERNS OF PERCEPTUAL ASYMMETRY IN PROCESSING FACIAL EXPRESSION
Autore:
MAGNUSSEN S; SUNDE B; DYRNES S;
Indirizzi:
UNIV OSLO,INST PSYCHOL,VIS LAB,BOX 1094 N-0317 OSLO NORWAY
Titolo Testata:
Cortex
fascicolo: 2, volume: 30, anno: 1994,
pagine: 215 - 229
SICI:
0010-9452(1994)30:2<215:POPAIP>2.0.ZU;2-Y
Fonte:
ISI
Lingua:
ENG
Soggetto:
VISUAL-FIELD ASYMMETRIES; HEMISPHERIC-DIFFERENCES; CEREBRAL ASYMMETRY; CHIMERIC STIMULI; EMOTION; FACES; RECOGNITION; BRAIN; LATERALIZATION; IDENTITY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
39
Recensione:
Indirizzi per estratti:
Citazione:
S. Magnussen et al., "PATTERNS OF PERCEPTUAL ASYMMETRY IN PROCESSING FACIAL EXPRESSION", Cortex, 30(2), 1994, pp. 215-229

Abstract

The paper reports four visual half-field experiments on the recognition of schematic faces whose emotional expression varied. Experiments Iand II tested accuracy of recognition in a match-to-sample task. The results confirmed an overall left visual-field superiority in face recognition, but an analysis of a subset of the stimuli indicated that the direction and magnitude of the perceptual asymmetry depend upon the sign of the emotional expression. A replot of the results based on direct scaling of emotional expression (Experiment III) revealed an asymmetry gradient shifting from a left visual-field superiority for faces displaying friendly, non-aggressive emotions to a right visual-field superiority for faces displaing hostile, aggressive emotions. When the stimuli are rotated 180 degrees the faces lose their emotional expression and no visual half-field asymmetry in recognition was observed in this condition (Experiment IV), It is concluded that emotional signalsare processed independently of pattern, object and face recognition, and that the relative contribution of the left and right cerebral hemispheres to processing of emotional signals varies according to the type of emotion displayed.

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Documento generato il 01/12/20 alle ore 00:24:10