Temporal Context in Speech Processing and Attentional Stream Selection: A Behavioral and Neural Perspective

Autor/inn/en	Golumbic, Elana M. Zion; Poeppel, David; Schroeder, Charles E.
Titel	Temporal Context in Speech Processing and Attentional Stream Selection: A Behavioral and Neural Perspective
Quelle	In: Brain and Language, 122 (2012) 3, S.151-161 (11 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0093-934X
DOI	10.1016/j.bandl.2011.12.010
Schlagwörter	Speech Communication; Language Processing; Neurology; Physiology; Brain Hemisphere Functions; Attention; Sensory Integration + Suchen Sie Ihr Suchwort? Sprachverarbeitung; Neurologie; Physiologie; Aufmerksamkeit; Sensorische Integration
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. (Contains 2 figures.) (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10