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- Title
Interactions between auditory and somatosensory feedback for voice F <sub>0</sub> control.
- Authors
Larson, Charles; Altman, Kenneth; Liu, Hanjun; Hain, Timothy
- Abstract
Previous studies have demonstrated the importance of both kinesthetic and auditory feedback for control of voice fundamental frequency ( F 0). In the present study, a possible interaction between auditory feedback and kinesthetic feedback for control of voice F 0 was tested by administering local anesthetic to the vocal folds in the presence of perturbations in voice pitch feedback. Responses to pitch-shifted voice feedback were larger when the vocal fold mucosa was anesthetized than during normal kinesthesia. A mathematical model incorporating a linear combination of kinesthesia and pitch feedback simulated the main aspects of our experimental results. This model indicates that a feasible explanation for the increase in response magnitude with vocal fold anesthesia is that the vocal motor system uses both pitch and kinesthesia to stabilize voice F 0 shortly after a perturbation of voice pitch feedback has been perceived.
- Subjects
FEEDBACK control systems; VOICE frequency; AUDIO frequency; MATHEMATICAL models; MUCOUS membranes; VOCAL cords
- Publication
Experimental Brain Research, 2008, Vol 187, Issue 4, p613
- ISSN
0014-4819
- Publication type
Article
- DOI
10.1007/s00221-008-1330-z