| Selecting a stimulus signal for linear systems analysis of the vestibulo-ocular reflex. | |
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MedLine Citation:
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PMID: 1643227 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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We evaluated 3 types of stimulus signals for use in estimating the transfer function of the vestibulo-ocular reflex. We used individual sine-wave, sum-of-sine, and pseudorandom stimuli. Five normal human subjects were tested 5 times each using each of the 3 stimulus types. Frequency domain techniques were used to estimate the transfer function at 0.01, 0.03, and 0.05 Hz. The most consistent estimates were obtained using individual sine-wave stimuli. The pseudorandom signal yielded the most variable estimates. A sum-of-sine stimulus composed of 3 sine-wave signals provided estimates slightly more variable than the individual sine-wave stimuli, but much less variable than the pseudorandom stimulus. The redundency of the sine and sum-of-sine stimuli seems to be an advantage by providing stable estimates of the transfer function in the presence of noise. |
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Authors:
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E J Engelken; K W Stevens; J D Enderle |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Biomedical sciences instrumentation Volume: 28 ISSN: 0067-8856 ISO Abbreviation: Biomed Sci Instrum Publication Date: 1992 |
Date Detail:
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Created Date: 1992-09-10 Completed Date: 1992-09-10 Revised Date: 2009-11-11 |
Medline Journal Info:
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Nlm Unique ID: 0140524 Medline TA: Biomed Sci Instrum Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 31-6 Citation Subset: IM; S |
Affiliation:
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Aerospace Medicine Directorate, Armstrong Laboratory/AOCF, Brooks AFB, TX 78235. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adult Eye Movements / physiology* Humans Linear Models Nystagmus, Physiologic Reflex, Vestibulo-Ocular / physiology* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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