Maylor, Elizabeth A. and Rabbitt, Patrick. (1987) Effects of alcohol and practice on choice reaction time. Perception & psychophysics, Vol.42 (No.5). pp. 465-475. ISSN 0031-5117

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Abstract

Forty subjects participated in a four-choice reaction time experiment in which they received alcohol (1 ml/kg body weight) in one session and no alcohol in another on consecutive days (the order being counterbalanced). Fifty practice trials and then 2,000 experimental trials were given in each session. Subjects were slower, more variable, and less accurate overall with alcohol than without. They were also slower and more variable in the first than in the second session. By combining the data across subjects to produce speed-error tradeoff functions, it appears that practice has little effect whereas alcohol has a substantial effect; responses made within 600 msec of stimulus presentation are more likely to be erroneous with alcohol than without. In addition, the number of consecutive errors was increased by alcohol. The results are interpreted within a model in which it is suggested that the primary effect of alcohol upon performance in speeded tasks is to decrease the rate of accumulation of evidence.

Item Type:	Journal Article
Subjects:	B Philosophy. Psychology. Religion > BF Psychology
Divisions:	Faculty of Science > Psychology
Library of Congress Subject Headings (LCSH):	Alcohol -- Psychological aspects, Reaction time -- Effect of drugs on , Human information processing -- Effect of drugs on , Attention, Distraction (Psychology)
Journal or Publication Title:	Perception & psychophysics
Publisher:	Springer New York LLC
ISSN:	0031-5117
Date:	September 1987
Volume:	Vol.42
Number:	No.5
Page Range:	pp. 465-475
Identification Number:	10.3758/BF03209754
Status:	Peer Reviewed
Funder:	Medical Research Council (Great Britain) (MRC)
Grant number:	G8221479 (MRC)
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URI:	http://wrap.warwick.ac.uk/id/eprint/35787

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