Short Communication: Neural correlates of bimodal speech and gesture comprehension  

Oleh:

Kelly, Spencer D. ; Kravitz, Corinne ; Hopkins, Michael

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Brain and Language (Full Text) vol. 89 no. 1 (2004), page 253-260.
Fulltext: 89_01_Kelly.pdf (579.22KB)

Isi artikel

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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