Abstract
Intonational characteristics of Thai sentences were used to evaluate fundamental frequency (F0) control in brain-damaged patients with unilateral left and right hemisphere lesions. Subjects (n= 41) included 9 young and 10 old normal adults, 12 right hemisphere patients, and 10 left hemisphere aphasic patients (7 fluent and 3 nonfluent). Sentences were comprised of six words, three of which were keywords occurring in sentence-initial, -medial, and -final positions. All 125 possible sequences of three of the five Thai tones (mid, low, falling, high, rising) were superimposed on monosyllabic keywords. Utterances were produced at a conversational speaking rate. AverageF0of keywords was analyzed as a function of sentence position, tone, and group. For both normal and brain-damaged speakers, results indicated that tones in sentence-final position were significantly lower inF0than in either sentence-initial or -medial position; falling and high tones were significantly higher inF0than mid, low, and rising tones. Findings are discussed in relation to issues pertaining to hemispheric specialization and the nature ofF0deficits in nonfluent and fluent aphasic patients.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.