Neural bases of talker normalization

Patrick C.M. Wong, Howard C. Nusbaum, Steven L. Small

Research output: Contribution to journalArticle

57 Scopus citations

Abstract

To recognize phonemes across variation in talkers, listeners can use information about vocal characteristics, a process referred to as "talker normalization." The present study investigates the cortical mechanisms underlying talker normalization using fMRI. Listeners recognized target words presented in either a spoken list produced by a single talker or a mix of different talkers. It was found that both conditions activate an extensive cortical network. However, recognizing words in the mixed-talker condition, relative to the blocked-talker condition, activated middle/superior temporal and superior parietal regions to a greater degree. This temporal-parietal network is possibly associated with selectively attending and processing spectral and spatial acoustic cues required in recognizing speech in a mixed-talker condition.

Original languageEnglish (US)
Pages (from-to)1173-1184
Number of pages12
JournalJournal of Cognitive Neuroscience
Volume16
Issue number7
DOIs
StatePublished - Sep 1 2004
Externally publishedYes

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ASJC Scopus subject areas

  • Cognitive Neuroscience

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