Memorial University DAI: The effects of noise and contraction intensity on vigilance performance

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Document Description

Title	The effects of noise and contraction intensity on vigilance performance
Author	Button, Duane Calvin, 1977-
Description	Thesis (M.Phys.Ed.)--Memorial University of Newfoundland, 2003. Human Kinetics and Recreation
Date	2003
Pagination	1 v. (various foliations) : ill.
Subject	Vigilance (Psychology); Noise--Physiological effect; Muscle contraction
Degree	M.Phys.Ed.
Degree Grantor	Memorial University of Newfoundland. School of Human Kinetics and Recreation
Discipline	Human Kinetics and Recreation
Language	Eng
Notes	Includes bibliographical references
Abstract	There were two major objectives for this thesis: 1) to integrate the existing literature based on vigilance, noise, and neuromuscular fatigue and 2) to determine the effects of muscle contraction intensity, neuromuscular fatigue, and noise on the performance of complex and simple vigilance tasks. Vigilance or an individual's state of physiological or psychological readiness to mediate performance when reacting to a stimulus can be affected simultaneously by noise and neuromuscular stimuli. Noise exposure and muscle contraction have been shown to both negatively and positively affect vigilance performance. However, this contradiction may be a result of differences in muscle contraction and noise intensities, durations, and type as well as the complexity of the vigilance task. It was determined in the present experiment that continuous noise at an intensity of 95 dB (A) impairs both simple and to a greater extent complex vigilance task performance. Isometric muscle contractions at 5% and 20% of a maximum voluntary contraction also impaired simple and complex vigilance task performance. There did not seem to be an interaction effect between noise and contraction intensity.
Type	Text
Resource Type	Electronic resource or dissertation
Format	Image/jpg; Application/pdf
Source	Paper copy kept in the Centre for Newfoundland Studies, Memorial University Libraries
Local Identifier	a1629321
Rights	The author retains copyright ownership and moral rights in this thesis. Neither the thesis nor substantial extracts from it may be printed or otherwise reproduced without the author's permission.
Collection	Electronic Theses and Dissertations
Scanning Status	Completed
PDF File	(18.26 MB) -- http://collections.mun.ca/PDFs/theses/Button_DuaneCalvin.pdf
CONTENTdm file name	249504.cpd