FREQUENCY ANALYSIS AS A METHOD OF SIGNAL DETECTION FOR THE BRAINSTEM AUDITORY EVOKED RESPONSE.
Item
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Title
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FREQUENCY ANALYSIS AS A METHOD OF SIGNAL DETECTION FOR THE BRAINSTEM AUDITORY EVOKED RESPONSE.
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Identifier
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AAI8629705
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identifier
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8629705
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Creator
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KAYE, STEVEN MARK.
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Contributor
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Edward Greenblatt
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Date
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1986
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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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Psychology, Physiological
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Abstract
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The brainstem auditory evoked response (BAER) is a widely used clinical and research tool. Analysis of the BAER typically involves the measurement of the latency of its peaks. This type of analysis yields a limited amount of information from each BAER. Often, in clinical situations, patient's pathologies result in distorted or missing peaks. Recordings are often made under less then ideal conditions and false peaks are introduced. In these cases it may be impossible to make a quantitative statement about the waveform or in the case of a very degraded BAER it may be impossible to make any useful statement at all.;In this paper, a method of increasing the signal to noise ratio of the BAER through the use of frequency analysis was examined. The BAER was systematically degraded by increasing the rate of stimulus presentation. Several measures derived from the frequency analysis based on spectral magnitudes and phases were quantitatively compared with several traditional time-domain measures (inter-peak latencies and waveform morphology). The goal was to determine which measure or group of measures best predict or correlate with, signal presence (or overall quality of the BAER).;A measure derived from frequency analysis was found to be a better predictor of BAER quality than any of the traditional time-domain measures.
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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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Psychology
