alexa Speech timing subsequent to brain damage: effects of utterance length and complexity.


Journal of Speech Pathology & Therapy

Author(s): Baum SR, Boyczuk JP

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Abstract Acoustic analyses of syllable durations were conducted in order to address several hypotheses concerning deficits in the control of speech timing subsequent to focal brain damage. Groups of nonfluent and fluent aphasics, right-hemisphere-damaged patients, and normal controls produced monosyllabic root syllables in medial and final position in the context of short and long sentences and syntactically simple and complex sentences. Durations of the target syllable as a proportion of the utterance were compared across contexts and groups. Somewhat surprisingly, the results revealed relatively normal temporal patterns in all subject groups, with the main exception emerging for the nonfluent aphasic patients who failed to demonstrate normal phrase-final lengthening effects. Implications of the findings for theories of temporal control in brain-damaged patients are considered. Copyright 1999 Academic Press. This article was published in Brain Lang and referenced in Journal of Speech Pathology & Therapy

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