Acoustical durations of speech segments during stuttering adaptation.
Acoustical durations of stutter- and disfluency-free speech segments from Readings #1 and #5 in an adaptation series were measured in 4 adapting, 4 nonadapting, and 4 nonstuttering subjects. The segment durations measured were intervocalic interval, stop-gap, voice onset time, and vowel duration. No clear trends in the change of acoustical durations from Reading #1 to Reading #5 distinguished the adapting, nonadapting, or nonstuttering subjects. Moreover, on the basis of speech naturalness judgements, listeners did not differentiate the Reading #1 and #5 phrase segments of subjects with high adaptation versus those with low adaptation scores. From these findings and related literature, adaptation of stuttering, as well as other fluency-inducing conditions, are viewed as circumstances that reduce demands upon central motor-linguistic processes.
Prins
D
D
Speech and Hearing Sciences, University of Washington, Seattle 98195.
Hubbard
C P
CP
D000222:Adaptation, Physiological; D000293:Adolescent; D000328:Adult; D006801:Humans; D008297:Male; D013061:Speech Acoustics; D013342:Stuttering / Q000503:physiopathology*