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    Brain Lang. 1997 Mar;57(1):122-50.

    Behavioral and electrophysiological indices of voicing-cue discrimination: laterality patterns and development.

    Source

    Department of Psychology, Southern Illinois University, Carbondale 62901-6502, USA.

    Abstract

    Voicing is an important phonetic dimension that distinguishes voiced (i.e., /b/) from voiceless-aspirated stop consonants (i.e.,/ph/) in English. Perception of discrete voicing categories is affected by a number of acoustic cues. The present paper reviews evidence from brain-damaged populations indicating that the perception of certain voicing cues is less dependent upon left hemisphere mechanisms than the ability to perceive place of articulation contrasts (e.g., /b/ vs./d/). In addition, electrophysiological and dichotic listening studies with neurologically normal individuals support the view that the right hemisphere may play a special role in the categorical processing of voicing. These findings are discussed in relation to current models of hemispheric specialization and laterality for language.

    PMID:
    9126410
    [PubMed - indexed for MEDLINE]

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