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  • Title: Neural correlates of audiovisual integration of semantic category information.
    Author: Hu Z, Zhang R, Zhang Q, Liu Q, Li H.
    Journal: Brain Lang; 2012 Apr; 121(1):70-5. PubMed ID: 22330797.
    Abstract:
    Previous studies have found a late frontal-central audiovisual interaction during the time period about 150-220 ms post-stimulus. However, it is unclear to which process is this audiovisual interaction related: to processing of acoustical features or to classification of stimuli? To investigate this question, event-related potentials were recorded during a words-categorization task with stimuli presented in the auditory-visual modality. In the experiment, congruency of the visual and auditory stimuli was manipulated. Results showed that within the window of about 180-210 ms post-stimulus more positive values were elicited by category-congruent audiovisual stimuli than category-incongruent audiovisual stimuli. This indicates that the late frontal-central audiovisual interaction is related to audiovisual integration of semantic category information.
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