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The effects of delayed auditory feed...

Hutchinson, Laura Anne.

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The effects of delayed auditory feedback on the speech kinematics of normal and Parkinsonian speakers.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	The effects of delayed auditory feedback on the speech kinematics of normal and Parkinsonian speakers./
作者:	Hutchinson, Laura Anne.
面頁冊數:	184 p.
附註:	Source: Masters Abstracts International, Volume: 38-01, page: 2010.
Contained By:	Masters Abstracts International38-01.
標題:	Speech therapy. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=MQ42072
ISBN:	9780612420724

The effects of delayed auditory feedback on the speech kinematics of normal and Parkinsonian speakers.
Hutchinson, Laura Anne.

The effects of delayed auditory feedback on the speech kinematics of normal and Parkinsonian speakers. - 184 p.

Source: Masters Abstracts International, Volume: 38-01, page: 2010.

Thesis (M.Sc.)--The University of Western Ontario (Canada), 1999.

This study investigated the effects of delayed auditory feedback (DAF) on the speech kinematics of ten normal and ten parkinsonian speakers. The procedure involved the collection of upper lip, lower lip, and jaw movement data during the closing gesture of a bilabial plosive. Data were collected during four DAF conditions (0, 40, 80, 120 msec delay). An acoustic analysis of utterance duration indicated that the subjects' rate of speech decreased with increases in delayed auditory feedback. The kinematic results revealed that increases in DAF were associated with increases in movement time, displacement, percent time to peak velocity, and the number of velocity peaks for all three structures. Increases in DAF were also associated with a decrease in the peak velocity/displacement ratio and an increase in parameter c for the jaw, lower lip, and upper lip. Comparisons between the normal and PD (Parkinson's disease) subjects revealed significant differences for the value of peak velocity, particularly during the longest DAF condition (120 msec). It appeared that longer delays in auditory feedback may have different effects on the control of speech movements in normal and PD subjects. Significant interactions were revealed for movements during DAF increases from 80 to 120msec for movement time, peak velocity, percent time to peak velocity, and number of velocity peaks. Also, increases from DAF 0 to 120msec revealed significant interactions for peak velocity and DAF 40 to DAF 80 for percent time to peak velocity. Results are discussed in terms of sensorimotor integration deficits in PD and the control of slow speech rate in both normal and PD subjects.

ISBN: 9780612420724Subjects--Topical Terms:

520446
Speech therapy.

The effects of delayed auditory feedback on the speech kinematics of normal and Parkinsonian speakers.
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245 1 4 $a The effects of delayed auditory feedback on the speech kinematics of normal and Parkinsonian speakers.
300 $a 184 p.
500 $a Source: Masters Abstracts International, Volume: 38-01, page: 2010.
500 $a Adviser: Scott Adams.
502 $a Thesis (M.Sc.)--The University of Western Ontario (Canada), 1999.
520 $a This study investigated the effects of delayed auditory feedback (DAF) on the speech kinematics of ten normal and ten parkinsonian speakers. The procedure involved the collection of upper lip, lower lip, and jaw movement data during the closing gesture of a bilabial plosive. Data were collected during four DAF conditions (0, 40, 80, 120 msec delay). An acoustic analysis of utterance duration indicated that the subjects' rate of speech decreased with increases in delayed auditory feedback. The kinematic results revealed that increases in DAF were associated with increases in movement time, displacement, percent time to peak velocity, and the number of velocity peaks for all three structures. Increases in DAF were also associated with a decrease in the peak velocity/displacement ratio and an increase in parameter c for the jaw, lower lip, and upper lip. Comparisons between the normal and PD (Parkinson's disease) subjects revealed significant differences for the value of peak velocity, particularly during the longest DAF condition (120 msec). It appeared that longer delays in auditory feedback may have different effects on the control of speech movements in normal and PD subjects. Significant interactions were revealed for movements during DAF increases from 80 to 120msec for movement time, peak velocity, percent time to peak velocity, and number of velocity peaks. Also, increases from DAF 0 to 120msec revealed significant interactions for peak velocity and DAF 40 to DAF 80 for percent time to peak velocity. Results are discussed in terms of sensorimotor integration deficits in PD and the control of slow speech rate in both normal and PD subjects.
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