The observational threshold of horizontal gaze nystagmus.

Author(s)
Burns, M. Fiorentino, D. & Stuster, J.
Year
Abstract

A study was undertaken to further examine HGN (horizontal gaze nystagmus) at 0.08% BAC and to determine the lowest BAC at which its signs appear reliably. Measurements of the angle of gaze (AOG) at the onset of nystagmus were obtained with 48 subjects, who had been given alcohol to produce peak BACs in the range 0.02% - 0.12%. Observations were made with the EM/1, an instrument which displays a magnified video image of subjects' eyes. The obtained data provide further evidence of the reliability of HGN as an index of the presence of alcohol at 0.08%. Further study will be required to establish a BAC threshold for HGN.

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Publication

Library number
C 17218 (In: C 17017 [electronic version only]) /83 / ITRD E107527
Source

In: Alcohol, drugs and traffic safety T2000 : proceedings of the 15th ICADTS International Conference on Alcohol, Drugs and Traffic Safety, Stockholm, Sweden, May 22nd - 26th, 2000, pp.-

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