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dc.creatorGoldsberry, Dennis Hamilton
dc.date.accessioned2012-06-07T22:48:47Z
dc.date.available2012-06-07T22:48:47Z
dc.date.created1997
dc.date.issued1997
dc.identifier.urihttps://hdl.handle.net/1969.1/ETD-TAMU-1997-THESIS-G65
dc.descriptionDue to the character of the original source materials and the nature of batch digitization, quality control issues may be present in this document. Please report any quality issues you encounter to digital@library.tamu.edu, referencing the URI of the item.en
dc.descriptionIncludes bibliographical references.en
dc.descriptionIssued also on microfiche from Lange Micrographics.en
dc.description.abstractOculomotor impairment is often a sign of brain dysfiinction. This study extends the effects of alcohol intoxication on the response of the smooth pursuit system to a pseudorandom non-linear sum-of-sinusoids input and attempts to develop mathematical regression models to represent the respo as recorded by infrared oculography (IROG). This study extends the work Reddy, using the data recorded from seventeen subjects in his experiments comparing the time-domain results to Reddy's nonlinear model. This work to determine the effects of introducing a time delay into a model simular the one developed by Reddy, using adjusted R2 values as the parameter of comparison. In addition, a difference between pre-and post-alcohol consumption recordings is investigated. Introducing time delays through use of lagged variables significantly improves the adjusted IC values of model. In fact, the first-order lagged variable improves the model more introducing higher-order non-lagged terms. The smooth pursuit system is strongly linear with minor non-linearities, as is shown through scatter p of the data and of first-order regression residuals. The R2values were observed for various values of lag in the first-order model and the maxim value obtained. The maximum occurred at different values of lag for each subject, indicating a wide amount of variation with a mean value of about 130ms, which has been reported in the literature. No statistically significant difference was found between the pre-and post-alcohol models suggesting that both conditions can be described by the same form of the model. This also implies that the sub-threshold alcohol level (BAC<0.10% not produce detectable manifestations.en
dc.format.mediumelectronicen
dc.format.mimetypeapplication/pdf
dc.language.isoen_US
dc.publisherTexas A&M University
dc.rightsThis thesis was part of a retrospective digitization project authorized by the Texas A&M University Libraries in 2008. Copyright remains vested with the author(s). It is the user's responsibility to secure permission from the copyright holder(s) for re-use of the work beyond the provision of Fair Use.en
dc.subjectbioengineering.en
dc.subjectMajor bioengineering.en
dc.titleCharacterization of oculomotor response to pseudorandom stimuli using time-domain analysis-effects of alcohol intoxication on smooth pursuit movementsen
dc.typeThesisen
thesis.degree.disciplinebioengineeringen
thesis.degree.nameM.S.en
thesis.degree.levelMastersen
dc.type.genrethesisen
dc.type.materialtexten
dc.format.digitalOriginreformatted digitalen


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