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Alcohol-impaired speed and accuracy of cognitive functions: a review of acute tolerance and recovery of cognitive performance.
Exp Clin Psychopharmacol. 2008 Jun; 16(3):240-50.EC

Abstract

Much research on the effects of a dose of alcohol has shown that motor skills recover from impairment as blood alcohol concentrations (BACs) decline and that acute tolerance to alcohol impairment can develop during the course of the dose. Comparable alcohol research on cognitive performance is sparse but has increased with the development of computerized cognitive tasks. This article reviews the results of recent research using these tasks to test the development of acute tolerance in cognitive performance and recovery from impairment during declining BACs. Results show that speed and accuracy do not necessarily agree in detecting cognitive impairment, and this mismatch most frequently occurs during declining BACs. Speed of cognitive performance usually recovers from impairment to drug-free levels during declining BACs, whereas alcohol-increased errors fail to diminish. As a consequence, speed of cognitive processing tends to develop acute tolerance, but no such tendency is shown in accuracy. This "acute protracted error" phenomenon has not previously been documented. The findings pose a challenge to the theory of alcohol tolerance on the basis of physiological adaptation and raise new research questions concerning the independence of speed and accuracy of cognitive processes, as well as hemispheric lateralization of alcohol effects. The occurrence of alcohol-induced protracted cognitive errors long after speed returned to normal is identified as a potential threat to the safety of social drinkers that requires urgent investigation.

Authors+Show Affiliations

Keenan Research Centre of the Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, Ontario, Canada. schweizert@smh.toronto.on.caNo affiliation info available

Pub Type(s)

Journal Article
Review

Language

eng

PubMed ID

18540784

Citation

Schweizer, Tom A., and Muriel Vogel-Sprott. "Alcohol-impaired Speed and Accuracy of Cognitive Functions: a Review of Acute Tolerance and Recovery of Cognitive Performance." Experimental and Clinical Psychopharmacology, vol. 16, no. 3, 2008, pp. 240-50.
Schweizer TA, Vogel-Sprott M. Alcohol-impaired speed and accuracy of cognitive functions: a review of acute tolerance and recovery of cognitive performance. Exp Clin Psychopharmacol. 2008;16(3):240-50.
Schweizer, T. A., & Vogel-Sprott, M. (2008). Alcohol-impaired speed and accuracy of cognitive functions: a review of acute tolerance and recovery of cognitive performance. Experimental and Clinical Psychopharmacology, 16(3), 240-50. https://doi.org/10.1037/1064-1297.16.3.240
Schweizer TA, Vogel-Sprott M. Alcohol-impaired Speed and Accuracy of Cognitive Functions: a Review of Acute Tolerance and Recovery of Cognitive Performance. Exp Clin Psychopharmacol. 2008;16(3):240-50. PubMed PMID: 18540784.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Alcohol-impaired speed and accuracy of cognitive functions: a review of acute tolerance and recovery of cognitive performance. AU - Schweizer,Tom A, AU - Vogel-Sprott,Muriel, PY - 2008/6/11/pubmed PY - 2008/11/11/medline PY - 2008/6/11/entrez SP - 240 EP - 50 JF - Experimental and clinical psychopharmacology JO - Exp Clin Psychopharmacol VL - 16 IS - 3 N2 - Much research on the effects of a dose of alcohol has shown that motor skills recover from impairment as blood alcohol concentrations (BACs) decline and that acute tolerance to alcohol impairment can develop during the course of the dose. Comparable alcohol research on cognitive performance is sparse but has increased with the development of computerized cognitive tasks. This article reviews the results of recent research using these tasks to test the development of acute tolerance in cognitive performance and recovery from impairment during declining BACs. Results show that speed and accuracy do not necessarily agree in detecting cognitive impairment, and this mismatch most frequently occurs during declining BACs. Speed of cognitive performance usually recovers from impairment to drug-free levels during declining BACs, whereas alcohol-increased errors fail to diminish. As a consequence, speed of cognitive processing tends to develop acute tolerance, but no such tendency is shown in accuracy. This "acute protracted error" phenomenon has not previously been documented. The findings pose a challenge to the theory of alcohol tolerance on the basis of physiological adaptation and raise new research questions concerning the independence of speed and accuracy of cognitive processes, as well as hemispheric lateralization of alcohol effects. The occurrence of alcohol-induced protracted cognitive errors long after speed returned to normal is identified as a potential threat to the safety of social drinkers that requires urgent investigation. SN - 1064-1297 UR - https://www.unboundmedicine.com/medline/citation/18540784/Alcohol_impaired_speed_and_accuracy_of_cognitive_functions:_a_review_of_acute_tolerance_and_recovery_of_cognitive_performance_ L2 - http://content.apa.org/journals/pha/16/3/240 DB - PRIME DP - Unbound Medicine ER -