Abstract
30 male and 30 female adults sustained the vowel /a/ under specified conditions. Analysis of the data for 10 trials suggests that four trials produced at a comfortable pitch and loudness level and interrupted by a 60-sec. rest would reliably evaluate prolonged vocalization. Males' superior performance was noted. Clinical applications and research implications are discussed.
References
1.
Beckett
R. L.
The respirometer as a diagnostic and clinical tool in the speech clinic . Journal of Speech and Hearing Disorders , 1971 , 36 , 235 –241 .
2.
Boone
D. R.
The voice and voice therapy. Englewood Cliffs, N. J. : Prentice-Hall , 1971 .
3.
Brodnitz
F. S.
Vocal rehabilitation. Rochester, Minn. : Custom Printing , 1965 .
4.
Darley
F. L.
Aronson
A. E.
Brown
J. R.
Motor speech disorders. Philadelphia : Saunders , 1975 .
5.
Emerick
L. L.
Hatten
J. T.
Diagnosis and evaluation in speech pathology. Englewood Cliffs, N. J. : Prentice-Hall , 1974 .
6.
Fairbanks
G.
Voice and articulation drillbook. New York : Harper , 1960 .
7.
Hirano
M.
Koike
Y.
von Leden
H.
Maximum phonation time and air usage-during phonation: Clinical study . Folia Phoniatrica , 1968 , 20 , 185 –201 .
8.
Li
J. C. R.
Statistical inference: I. Ann Arbor, Mich. : Edwards , 1964 .
9.
Moore
G. P.
Organic voice disorders. Englewood Cliffs, N. J. : Prentice-Hall , 1971 .
10.
Ptacek
P. H.
Sander
E. K.
Breathiness and phonation length . Journal of Speech and Hearing Disorders , 1963 , 28 , 267 –272 . (a).
11.
Ptacek
P. H.
Sander
E. K.
Maximum duration of phonation . Journal of Speech and Hearing Disorders , 1963 , 28 , 171 –182 . (b).
12.
Van Riper
C.
Speech correction: Principles and methods. Englewood Cliffs, N. J. : Prentice-Hall , 1963 .
13.
Van Riper
C.
Irwin
J. V.
Voice and articulation. Englewood Cliffs, N. J. : Prentice-Hall , 1958 .
14.
Yanagihara
N.
Koike
Y.
The regulation of sustained phonation . Folia Phoniatrica , 1967 , 19 , 1 –18 .
15.
Yanagihara
N.
Koike
Y.
von Leden
H.
Phonation and respiration . Folia Phoniatrica , 1966 , 18 , 323 –340 .
16.
Yanagihara
N.
von Leden
H.
Respiration and phonation . Folia Phoniatrica , 1967 , 19 , 153 –166 .