Journal article
Rate-Related Kinematic Changes in Younger and Older Adults
Folia phoniatrica et logopaedica, Vol.65(5), pp.239-247
01/01/2013
DOI: 10.1159/000357405
PMID: 24603675
Abstract
Aims: This study aimed to investigate the effects of speech rate changes on kinematic characteristics and stability of speech movements in younger and older speakers using electromagnetic midsagittal articulography. Patients and Methods: Eight young adults and 8 older adults engaged in a series of syllable repetition tasks of /pa/, /sa/ and /ta/ obtained at self-paced slow, habitual and fast speech rates, as well as in a series of metronome-guided speech rates, ranging from 2 to 4 syllables per second. The kinematic parameters duration, amplitude and peak velocity were obtained for opening and closing movements. Results: Older speakers were able to increase speech rate to the same degree or higher compared to younger speakers in both pacing conditions. Kinematic data show that older adults increased duration and decreased peak velocity in closing movements of alveolar constrictions at slower rates more prominently than younger adults. The results on movement stability revealed no differences between age groups. Conclusions: The results suggest that an age-related difference in speed-accuracy trade-off can be ruled out. Differences in kinematic characteristics point towards the possibility that older adults aimed to facilitate a closed-loop control system to maintain movement stability at slower speech rates. (C) 2014 S. Karger AG, Basel
Details
- Title: Subtitle
- Rate-Related Kinematic Changes in Younger and Older Adults
- Creators
- Frits van Brenk - JKHayo Terband - JKPascal van Lieshout - Toronto Rehabil Inst, Toronto, ON, CanadaAnja Lowit - Speech And Language TherapyBen Maassen - Radboud University Nijmegen
- Resource Type
- Journal article
- Publication Details
- Folia phoniatrica et logopaedica, Vol.65(5), pp.239-247
- Publisher
- KARGER
- DOI
- 10.1159/000357405
- PMID
- 24603675
- ISSN
- 1021-7762
- eISSN
- 1421-9972
- Number of pages
- 9
- Grant note
- Utrecht Institute of Linguistics - OTS, Utrecht University, The Netherlands 275-89-016 / Netherlands Organization for Scientific Research (NWO-VENI grant)
- Language
- English
- Date published
- 01/01/2013
- Academic Unit
- Communication Sciences and Disorders
- Record Identifier
- 9984258736802771
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