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Affective Blindsight: Evidence from Indirect Behavioral Methods and from Erps to Crossmodal Stimulation

 Beatrice de Gelder, Gilles Pourtois, Jean Vroomen and Lawrence Weiskrantz
  
 

Abstract:
Abstract: Following our previous results of affective blindsight for facial expressions obtained with direct guessing methods (de Gelder et al., 1999) we again tested GY this time using indirect behavioral methods requiring only a response to conscious stimulation in the good field. Experiment 1 used chimeric faces and showed an incongruency effect on naming latencies for the expression in the good visual field. Experiment 2 required a judgement of the emotional expression of a sentence fragment and provided evidence for covert recognition of facial expressions shown in the blind field on naming latencies for the emotion in the voice. Experiment 3 further investigated the crossmodal bias of an unseen face on the voice and provided evidence for image processing in extrastriate areas and for the time course of audio-visual integration.

 
 


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