Temporal context in speech processing and attentional stream selection: a behavioral and neural perspective.
Temporal context in speech processing and attentional stream selection: a behavioral and neural perspective.
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DOI:
10.1016/j.bandl.2011.12.010
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发表时间:
2012-09
影响因子:
2.5
通讯作者:
Schroeder, Charles E.
中科院分区:
文献类型:
--
作者:
Golumbic, Elana M. Zion;Poeppel, David;Schroeder, Charles E.
The human capacity for processing speech is remarkable, especially given that information in speech unfolds over multiple time scales concurrently. Similarly notable is our ability to filter out of extraneous sounds and focus our attention on one conversation, epitomized by the ‘Cocktail Party’ effect. Yet, the neural mechanisms underlying on-line speech decoding and attentional stream selection are not well understood. We review findings from behavioral and neurophysiological investigations that underscore the importance of the temporal structure of speech for achieving these perceptual feats. We discuss the hypothesis that entrainment of ambient neuronal oscillations to speech’s temporal structure, across multiple time-scales, serves to facilitate its decoding and underlies the selection of an attended speech stream over other competing input. In this regard, speech decoding and attentional stream selection are examples of ‘active sensing’, emphasizing an interaction between proactive and predictive top-down modulation of neuronal dynamics and bottom-up sensory input.
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发表时间:
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