Chapter

Oral movement control and speech

Doreen Kimura

in Neuromotor Mechanisms in Human Communication

Published in print December 1993 | ISBN: 9780195054927
Published online January 2008 | e-ISBN: 9780199872268 | DOI: http://dx.doi.org/10.1093/acprof:oso/9780195054927.003.0005

Series: Oxford Psychology Series

 Oral movement control and speech

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This chapter examines the co-occurrence of speech and nonspeech oral-movement defects, and the relation between oral-movement control and manual-movement control. The repetition of single syllables and the reproduction of single oral movements correlate significantly and are critically dependent on the left anterior region. Left posterior systems apparently play a very minor role in controlling speech or nonspeech oral movements of this kind. However, the posterior region does take part in selecting oral movements when more than one must be produced. Within the posterior region, temporal and parietal systems make somewhat different contributions. The parietal lobe in many persons is critical for the selection of articulatory/motor acts irrespective of whether these involve speech or not. The temporal lobe appears to be critical for selection of speech at a word (rather than an articulatory) level and when damaged results in poor repetition of multisyllabic words or phrases.

Keywords: oral movement defects; speech; repetition; single syllables; left anterior region; left posterior systems; parietal lobe; temporal lobe

Chapter.  5631 words.  Illustrated.

Subjects: Neuropsychology

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