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Publication Detail
Phases in speech encoding and foreign accent syndrome
  • Publication Type:
    Journal article
  • Publication Sub Type:
    Journal Article
  • Authors:
    Varley R, Whiteside S, Hammill C, Cooper K
  • Publication date:
    01/09/2006
  • Pagination:
    356, 369
  • Journal:
    Journal of Neurolinguistics
  • Volume:
    19
  • Issue:
    5
  • Status:
    Published
  • Print ISSN:
    0911-6044
Abstract
This study used perceptual and acoustic analysis to profile the speech characteristics of a single case (SD) of foreign accent syndrome (FAS) and to investigate the effects of conceptual-semantic (imageability), lexical (word frequency), and post-lexical (word length) variables on word production. SD's speech errors were consistent with the reported characteristics of FAS, including vowel lengthening, word stress mis-assignment, consonant cluster lengthening, and consonantal distortion. The following factors contributed to susceptibility to phonetic errors in speech output: low imageability, low frequency when combined with high phonetic complexity, and increasing word length. SD displayed preserved auditory perceptual abilities and a capacity for fluent auditory-to-phonetic conversion in repetition of non-words. We propose that this case of FAS might be best characterised as a disruption to automatised speech control processes but with compensatory mechanisms in place that allow the speaker to maintain some degree of accuracy in speech output. © 2006 Elsevier Ltd. All rights reserved.
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