PMID- 2620010
OWN - NLM
STAT- MEDLINE
DCOM- 19900327
LR  - 20070222
IS  - 0006-8969 (Print)
IS  - 0006-8969 (Linking)
VI  - 41
IP  - 11
DP  - 1989 Nov
TI  - [Significance of "on-off phonation test" to detect oral diadochokinesia in 
      dysarthric patients].
PG  - 1091-5
AB  - Oral diadochokinetic abilities in 6 patients with ataxic dysarthria (ATAXICs), 6 
      with spastic dysarthria (SPASTICs), 3 with parkinsonism (PARKINs), and 6 normal 
      subjects (NORMALs) were investigated using repetition of monosyllable /pa/ and 
      "on-off phonation test" in which they had been requested to repeat interrupted 
      vowel /a/ as fast as possible. Oscillographic as well as photographic records of 
      the speech acoustic signal were obtained to analyse interval for a syllable, 
      which consisted of voiced and unvoiced intervals, and peak-value of voiced 
      interval. The results were as follows: 1) ATAXICs and SPASTICs showed prolonged 
      interval for a syllable, yet that of PARKINs was within normal range, when tested 
      either in /a/ or in /pa/. 2) Standard deviation and coefficient of variation for 
      intervals of syllable and those of peak-values in voiced interval could not 
      distinguish their characteristics among ATAXICs, SPASTICs, and PARKINs. 3) In 
      "on-off phonation test", ATAXICs showed prolonged unvoiced intervals, while 
      SPASTICs did prolonged voiced intervals. Results suggested that hypotonic 
      laryngeal muscles in ATAXICs might result in prolongation of unvoiced interval, 
      but that prolonged voiced interval related to biased hypertonus of laryngeal 
      adductor. It is concluded that "on-off phonation test" could, with reasonable 
      sensitivity, reflect the phonatory dynamics of laryngeal muscles in dysarthric 
      patients.
FAU - Kojima, Y
AU  - Kojima Y
AD  - Department of Neurosurgery, Hamamatsu University, School of Medicine, Japan.
FAU - Shimoyama, I
AU  - Shimoyama I
FAU - Ninchoji, T
AU  - Ninchoji T
FAU - Uemura, K
AU  - Uemura K
LA  - jpn
PT  - English Abstract
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - Japan
TA  - No To Shinkei
JT  - No to shinkei = Brain and nerve
JID - 0413550
SB  - IM
MH  - Aged
MH  - Aged, 80 and over
MH  - Cerebellar Ataxia/*physiopathology
MH  - Dysarthria/etiology/*physiopathology
MH  - Female
MH  - Humans
MH  - Laryngeal Muscles/physiopathology
MH  - Male
MH  - Middle Aged
MH  - Mouth/*physiopathology
MH  - *Movement
MH  - Parkinson Disease/*physiopathology
MH  - *Phonation
MH  - Spasm/complications
MH  - Speech Disorders/*physiopathology
MH  - *Voice
EDAT- 1989/11/01 00:00
MHDA- 1989/11/01 00:01
CRDT- 1989/11/01 00:00
PHST- 1989/11/01 00:00 [pubmed]
PHST- 1989/11/01 00:01 [medline]
PHST- 1989/11/01 00:00 [entrez]
PST - ppublish
SO  - No To Shinkei. 1989 Nov;41(11):1091-5.