Journal
BIOLOGICAL PSYCHOLOGY
Volume 80, Issue 1, Pages 23-34Publisher
ELSEVIER
DOI: 10.1016/j.biopsycho.2008.01.015
Keywords
Speech perception; Selective attention; Temporal orienting; ERP; Auditory; N1; Nd
Funding
- NIH NIDCD [R03DC008684]
- NIH training [5T32 NS007490]
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Spatially selective attention allows for the preferential processing, of relevant stimuli when more information than can be processed in detail is presented simultaneously at distinct locations. Temporally selective attention may serve a similar function during speech perception by allowing listeners to allocate attentional resources to time windows that contain highly relevant acoustic information. To test this hypothesis, event-related potentials were compared in response to attention probes presented in six conditions during a narrative: concurrently with word onsets, beginning 50 and 1.00 ms before and after word onsets, and at random control intervals. Times for probe presentation were selected Such that the acoustic environments of the narrative were matched for all conditions. Linguistic attention probes presented at and immediately following word onsets elicited larger amplitude N1s than control probes over medial and anterior regions. These results indicate that native speakers selectively process sounds presented at specific times during normal speech perception. (c) 2008 Elsevier B.V. All rights reserved.
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