Temporal context in speech processing and attentional stream selection: A behavioral and neural perspective

Elana M. Zion Golumbic, David Poeppel, Charles E. Schroeder

Research output: Contribution to journalArticle

Abstract

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.

Original languageEnglish (US)
Pages (from-to)151-161
Number of pages11
JournalBrain and Language
Volume122
Issue number3
DOIs
StatePublished - Sep 2012

Keywords

  • Attention
  • Auditory
  • Entrainment
  • Oscillations
  • Rhythm
  • Speech
  • Time

ASJC Scopus subject areas

  • Language and Linguistics
  • Experimental and Cognitive Psychology
  • Linguistics and Language
  • Cognitive Neuroscience
  • Speech and Hearing

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