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Memorial University - Electronic Theses and Dissertations 1
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Document Description
TitleThe effects of noise and contraction intensity on vigilance performance
AuthorButton, Duane Calvin, 1977-
DescriptionThesis (M.Phys.Ed.)--Memorial University of Newfoundland, 2003. Human Kinetics and Recreation
Pagination1 v. (various foliations) : ill.
SubjectVigilance (Psychology); Noise--Physiological effect; Muscle contraction
Degree GrantorMemorial University of Newfoundland. School of Human Kinetics and Recreation
DisciplineHuman Kinetics and Recreation
NotesIncludes bibliographical references
AbstractThere 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.
Resource TypeElectronic resource or dissertation
FormatImage/jpg; Application/pdf
SourcePaper copy kept in the Centre for Newfoundland Studies, Memorial University Libraries
Local Identifiera1629321
RightsThe 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.
CollectionElectronic Theses and Dissertations
Scanning StatusCompleted
PDF File(18.26 MB) --
CONTENTdm file name249504.cpd