Abstract
A longitudinal study of the effects of aging on speech breathing: Evidence of decreased expiratory volume in speech recordings
The Journal of the Acoustical Society of America, Vol.139(4), pp.2046-2046
04/2016
DOI: 10.1121/1.4950055
Abstract
Age-related changes occur in speech that are associated with structural, physiological, and immunological processes involving the oral and nasal cavities, the larynx and pharynx, and the respiratory system. With aging, laryngeal tissues tend to degenerate or atrophy and laryngeal cartilages tend to ossify. These changes can lead to increased instability and perceived hoarseness or harshness, reduced loudness, and changes in fundamental frequency. In the respiratory system, a decline in lung and diaphragm elasticity and muscle strength can occur, and the thoracic cage can stiffen, leading to reductions in lung pressure and forced expiratory volume (hence, an increase in residual lung volume). In this study, recordings of three female and three male subjects were analyzed. These were made over the course of between 18 and 48 years (with a mean of 32.5 years). Samples of five minutes in length were extracted from each recording. Subsequently, trained raters measured the durations of exhalations during speech (termed “breath groups”). The results indicate decreases in breath group duration for most subjects as their age increased (especially from 65 years onwards), consistent with the decline in expiratory volume reported in the literature.
Details
- Title: Subtitle
- A longitudinal study of the effects of aging on speech breathing: Evidence of decreased expiratory volume in speech recordings
- Creators
- Simone Graetzer - Michigan State UniversityEric J. Hunter - Michigan State University
- Resource Type
- Abstract
- Publication Details
- The Journal of the Acoustical Society of America, Vol.139(4), pp.2046-2046
- DOI
- 10.1121/1.4950055
- ISSN
- 0001-4966
- eISSN
- 1520-8524
- Number of pages
- 1
- Date published
- 04/2016
- Academic Unit
- Communication Sciences and Disorders
- Record Identifier
- 9984447846702771
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