title: Voice onset time of velar stop productions in aged speakers.
abstract: Voice onset time (VOT) was measured for voiced and voiceless velar stop consonants across three vowel contexts (/i, a, u/) in healthy young adult and older subjects. Analysis showed that mean VOT values for both /k/ and /g/ across the three vowel contexts did not differ between the two groups; however, differences in VOT variability (standard deviation) approached significance; the older subjects exhibited increased variability. This apparent increase in variability may be related to the subtle anatomical and physiological changes with age.
authors.affiliation: Department of Communication Disorders, Bowling Green State University, OH 43403.
authors.forename: L
authors.initials: L
authors.lastname: Petrosino
authors.forename: R D
authors.initials: RD
authors.lastname: Colcord
authors.forename: K B
authors.initials: KB
authors.lastname: Kurcz
authors.forename: R J
authors.initials: RJ
authors.lastname: Yonker
mesh_terms: D000367:Age Factors; D000368:Aged; D005260:Female; D006801:Humans; D008297:Male; D010160:Palate, Soft / Q000502:physiology*; D010699:Phonation; D010700:Phonetics; D013060:Speech / Q000502:physiology*; D013061:Speech Acoustics; D013068:Speech Production Measurement; D014831:Voice