Title

Indexing Cognitive Tests To Alcohol Dosage And Comparison To Standardized Field Sobriety Tests

Abstract

Cognitive tests from a computerized battery of mental tests and standardized roadside field sobriety tests (FST) were administered in three experiments involving graded dosages of alcohol but different administration schedules. In the first experiment, subjects were raised to one of four levels of alcohol dosage in four sessions 1 week apart. In the second experiment, the descending branch of the blood alcohol concentration (BAC) curve was monitored from 150 mg/dl BAC in a single session. In the third experiment, the ascending and descending limbs of the alcohol dosage curve were followed over a single session. Dose response relationships were observed for all tests, and the changes were statistically significant (p < .001) in all three studies for all tests when evaluated singly, except for grammatical reasoning. When cognitive and FST tests were combined into a single multiple regression analysis, Gaze Nystagmus consistently accounted for the most variance in BAC, followed by code substitution. While multiple regression analyses reveal that tests from the two batteries can be combined to improve overall prediction of alcohol concentration, it is also true that the two batteries share considerable variance (i.e., > 30%). This suggests that, while the two batteries may not be substitutable, they are measuring different aspects of the same thing.

Publication Date

1-1-1994

Publication Title

Journal of Studies on Alcohol

Volume

55

Issue

5

Number of Pages

615-628

Document Type

Article

Identifier

scopus

Personal Identifier

scopus

DOI Link

https://doi.org/10.15288/jsa.1994.55.615

Socpus ID

0028033556 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0028033556

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