Sleep deprivation does not mimic alcohol intoxication on field sobriety testing |
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Authors: | Citek Karl Elmont Ashlee D Jons Christopher L Krezelok Chad J Neron Joseph D Plummer Timothy A Tannenbaum Timothy |
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Institution: | Pacific University College of Optometry, 2043 College Way, Forest Grove, OR 97116, USA. citekk1@pacificu.edu |
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Abstract: | Previous research shows that sleep deprivation (SD) produces cognitive impairment similar to that caused by alcohol intoxication. Individual studies suggest that SD also causes deficits in motor skills that could be mistaken for intoxication. Consequently, SD often is used as a defense when an impaired driver is charged with driving while intoxicated. Twenty-nine adult subjects participated in two test sessions each, one after a full night's rest and the other after wakefulness of at least 24 h. Subjects consumed prescribed amounts of alcohol during each session. Law enforcement officers conducted field sobriety tests identical to those with which a driver would be assessed at roadside. Researchers also measured clinical responses of visual function and vital signs. The presence and number of validated impairment clues increase with increasing blood alcohol concentration but not with SD. Thus, SD does not affect motor skills in a manner that would lead an officer to conclude that the suspect is intoxicated, unless intoxication also is present. |
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Keywords: | forensic science sleep deprivation fatigue alcohol intoxication field sobriety test nystagmus blood alcohol concentration driving while intoxicated |
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