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Pubmed for Handhelds

PUBMED FOR HANDHELDS

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  • Title: Neural correlates of bimodal speech and gesture comprehension.
    Author: Kelly SD, Kravitz C, Hopkins M.
    Journal: Brain Lang; 2004 Apr; 89(1):253-60. PubMed ID: 15010257.
    Abstract:
    The present study examined the neural correlates of speech and hand gesture comprehension in a naturalistic context. Fifteen participants watched audiovisual segments of speech and gesture while event-related potentials (ERPs) were recorded to the speech. Gesture influenced the ERPs to the speech. Specifically, there was a right-lateralized N400 effect-reflecting semantic integration-when gestures mismatched versus matched the speech. In addition, early sensory components in bilateral occipital and frontal sites differentiated speech accompanied by matching versus non-matching gestures. These results suggest that hand gestures may be integrated with speech at early and late stages of language processing.
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