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Monotony of speech production in Par...

Kim, Hyang-Hee.

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Monotony of speech production in Parkinson's disease: Acoustic characteristics and their perceptual relations.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Monotony of speech production in Parkinson's disease: Acoustic characteristics and their perceptual relations./
Author:	Kim, Hyang-Hee.
Description:	215 p.
Notes:	Source: Dissertation Abstracts International, Volume: 55-11, Section: B, page: 4809.
Contained By:	Dissertation Abstracts International55-11B.
Subject:	Speech therapy. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=9508857

Monotony of speech production in Parkinson's disease: Acoustic characteristics and their perceptual relations.
Kim, Hyang-Hee.

Monotony of speech production in Parkinson's disease: Acoustic characteristics and their perceptual relations. - 215 p.

Source: Dissertation Abstracts International, Volume: 55-11, Section: B, page: 4809.

Thesis (Ph.D.)--The University of Wisconsin - Madison, 1994.

Prosodic characteristics of Parkinsonian speech are comprised of, in particular, monotony. It was of interest to investigate specific acoustic dimensions contributing to the perceptual impression of monotony and further, to define the relative contribution of each acoustic feature in a given perceptual dimension. Multi-aspects of fundamental frequency (f0 in Hz), relative sound pressure level (SPL in dB), and duration (in msec) measures were obtained in the sentence samples generated by two groups of subjects (10 normal and 17 PD subjects). When the two groups were compared, significantly reduced values were observed in the PD speakers, in terms of (1) overall f0 range; (2) f0 range in the utterance-final word in long sentences; (3) atomistic (focal) f0 slopes; (4) SPL range in the utterance-final word in long sentences; (5) atomistic SPL slopes in long sentences; (6) ratio of vowel duration of the utterance-initial and -final words; and (7) duration of some vocalic segments such as /e scI/ and /a scI/. Furthermore, attempts to differentiate speech characteristics in the long vs short sentences in both groups have been made: (1) overall f0 ranges between the two sentence types differs only in the PD group; (2) global f0 slopes between the two sentence types significantly differ only in the normal group; and (3) both groups exhibited steeper focal f0 slopes in the long sentences.Subjects--Topical Terms:

520446
Speech therapy.

Monotony of speech production in Parkinson's disease: Acoustic characteristics and their perceptual relations.
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008 170521s1994 ||||||||||||||||| ||eng d
035 $a (MiAaPQ)AAI9508857
035 $a AAI9508857
040 $a MiAaPQ $c MiAaPQ
100 1 $a Kim, Hyang-Hee. $3 3185306
245 1 0 $a Monotony of speech production in Parkinson's disease: Acoustic characteristics and their perceptual relations.
300 $a 215 p.
500 $a Source: Dissertation Abstracts International, Volume: 55-11, Section: B, page: 4809.
500 $a Supervisor: Gary Weismer.
502 $a Thesis (Ph.D.)--The University of Wisconsin - Madison, 1994.
520 $a Prosodic characteristics of Parkinsonian speech are comprised of, in particular, monotony. It was of interest to investigate specific acoustic dimensions contributing to the perceptual impression of monotony and further, to define the relative contribution of each acoustic feature in a given perceptual dimension. Multi-aspects of fundamental frequency (f0 in Hz), relative sound pressure level (SPL in dB), and duration (in msec) measures were obtained in the sentence samples generated by two groups of subjects (10 normal and 17 PD subjects). When the two groups were compared, significantly reduced values were observed in the PD speakers, in terms of (1) overall f0 range; (2) f0 range in the utterance-final word in long sentences; (3) atomistic (focal) f0 slopes; (4) SPL range in the utterance-final word in long sentences; (5) atomistic SPL slopes in long sentences; (6) ratio of vowel duration of the utterance-initial and -final words; and (7) duration of some vocalic segments such as /e scI/ and /a scI/. Furthermore, attempts to differentiate speech characteristics in the long vs short sentences in both groups have been made: (1) overall f0 ranges between the two sentence types differs only in the PD group; (2) global f0 slopes between the two sentence types significantly differ only in the normal group; and (3) both groups exhibited steeper focal f0 slopes in the long sentences.
520 $a Perceptual ratings of PD speech by 10 listeners indicated that they were not able to differentially judge one aspect of monotony of speech from the others, or from degree of severity. In fact, the ratings of the four perceptual dimensions were highly correlated. The common best acoustic predictors for each perceptual dimension were (1) duration of vowel of utterance-initial word; (2) peak f0 of utterance-initial word; and (3) Total Length of Utterance (TLU).
520 $a The findings were significant since they contribute to narrowing the gap between listeners' perceptual impression of Parkinsonian speech and actual speech behaviors of individuals with Parkinson's disease. Implications for speech therapy are discussed.
590 $a School code: 0262.
650 4 $a Speech therapy. $3 520446
690 $a 0460
710 2 $a The University of Wisconsin - Madison. $3 626640
773 0 $t Dissertation Abstracts International $g 55-11B.
790 $a 0262
791 $a Ph.D.
792 $a 1994
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=9508857