A SIMULTANEOUS PHYSIOLOGICAL AND ACOUSTIC STUDY OF FUNDAMENTAL FREQUENCY DECLINATION.
Item
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Title
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A SIMULTANEOUS PHYSIOLOGICAL AND ACOUSTIC STUDY OF FUNDAMENTAL FREQUENCY DECLINATION.
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Identifier
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AAI8801712
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identifier
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8801712
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Creator
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GELFER, CAROLE ELLEN.
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Contributor
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Katherine H. Harris
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Date
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1987
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Language
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English
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Publisher
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City University of New York.
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Subject
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Speech Communication | Biology, Animal Physiology
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Abstract
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The general purpose of this study is to gain insights into some of the organizing principles of speech production by examining various aspects of sentence intonation, with a view to separating those aspects of the fundamental frequency contour which are variable from those which are stable. This study is also an attempt to identify the physiological substrates of fundamental frequency declination, and to resolve some of the questions raised by previous physiological studies concerning the relative contributions of the muscles of the larynx versus the subglottal pressure in determining various aspects of the FO contour. In addition to addressing the question of what the controlled variables in sentence intonation are, this study attempts to determine what the nature of that control is. That is, does fundamental frequency declination reflect the conscious representation of the details of the declination and the physiological means of achieving it or, alternatively, does it represent a lower level regulation, the purpose of which is to maintain dynamic stability, with minimal cognitive control or intervention?;The general findings of this study are that the cricothyroid muscle contributes most to the realization of contrastive stress, while the overall declination contour follows a dynamically stable subglottal pressure that is insensitive to linguistic variations, such as utterance length and stress configuration as well as variations in airflow. The data thus suggest that the origins of declination are to be found in the organization of the physiological systems subserving speech, and are not rooted in elaborate mental computations performed by speakers in an attempt to plan for the details of the fundamental frequency contour.
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Type
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dissertation
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Source
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PQT Legacy CUNY.xlsx
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degree
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Ph.D.
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Program
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Speech and Hearing Sciences
