Control of loudness, sound quality and vocal efficiency in speech and voice production are not well understood. Effective communication sometimes depends upon maximizing vocal intensity and vocal endurance, especially in certain professions and avocations. The long range goal of this proposal is to study vocal efficiency and optimal control of the voice through empirical and theoretical studies based on trained and untrained vocalists. The specific goals of this proposal are to 1) develop a quantitative theory of loudness control based on physiologic and acoustic variables, 2) study and explain the mechanisms of loudness control in trained vocal performers, 3) explore concepts of efficiency in phonation, 4) interpret modes of phonation on the basis of glottographic, airflow and acoustic signals, and 5) study acoustic,, aerodynamic and glottographic correlates of vocal fatigue. The scientific gains should contribute significantly to clinical and studio diagnostic and intervention concepts and techniques.

Project Start
Project End
Budget Start
Budget End
Support Year
2
Fiscal Year
1991
Total Cost
Indirect Cost
Name
University of Iowa
Department
Type
DUNS #
041294109
City
Iowa City
State
IA
Country
United States
Zip Code
52242
Robin, Donald A; Jacks, Adam; Hageman, Carlin et al. (2008) Visuomotor tracking abilities of speakers with apraxia of speech or conduction aphasia. Brain Lang 106:98-106
Palmer, Phyllis M; Jaffe, Debra M; McCulloch, Timothy M et al. (2008) Quantitative contributions of the muscles of the tongue, floor-of-mouth, jaw, and velum to tongue-to-palate pressure generation. J Speech Lang Hear Res 51:828-35
Ballard, K J; Robin, D A (2007) Influence of continual biofeedback on jaw pursuit-tracking in healthy adults and in adults with apraxia plus aphasia. J Mot Behav 39:19-28
Luschei, Erich S; Ramig, Lorraine O; Finnegan, Eileen M et al. (2006) Patterns of laryngeal electromyography and the activity of the respiratory system during spontaneous laughter. J Neurophysiol 96:442-50
Kuehn, David P; Moon, Jerald B (2005) Histologic study of intravelar structures in normal human adult specimens. Cleft Palate Craniofac J 42:481-9
Solomon, Nancy Pearl; Robin, Donald A (2005) Perceptions of effort during handgrip and tongue elevation in Parkinson's disease. Parkinsonism Relat Disord 11:353-61
Solomon, Nancy Pearl (2004) Assessment of tongue weakness and fatigue. Int J Orofacial Myology 30:8-19
Ramig, Lorraine Olson; Fox, Cynthia; Sapir, Shimon (2004) Parkinson's disease: speech and voice disorders and their treatment with the Lee Silverman Voice Treatment. Semin Speech Lang 25:169-80
Ritchie, Justine M; Smith, Elaine M; Summersgill, Kurt F et al. (2003) Human papillomavirus infection as a prognostic factor in carcinomas of the oral cavity and oropharynx. Int J Cancer 104:336-44
Finnegan, Eileen M; Luschei, Erich S; Barkmeier, Julie M et al. (2003) Synchrony of laryngeal muscle activity in persons with vocal tremor. Arch Otolaryngol Head Neck Surg 129:313-8

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