A comparative study of information processing time in chronic alcoholic and non-alcoholic men
Keywords:Chronic alcoholics, Information processing time, Sensorimotor functions
Background: An impairment in information processing time in chronic alcoholics compared to non-alcoholic men. Information processing time was assessed by using reaction time as a tool. Reaction time involves the central processing to a sensory input and output as execution of movement which may be a success or failure.
Methods: Chronic alcoholics were diagnosed on the basis of AUDIT, extensive history and complete examination. Reaction time a tool for assessing information processing time was measured using digital display response time apparatus with a visual stimulus.
Results: Visual reaction time for all three colours was increased in chronic alcoholics compared to the non-alcoholic men.
Conclusions: This study concludes that with chronic consumption of alcohol there is slow processing of information as well as decrease in efficiency of sensorimotor functioning which is shown by an increased reaction time for visual stimuli.
Maylor EA, Rabbitt PM, James GH, Kerr SA. Effects of alcohol and extended practice on divided-attention performance. Perception and Psychophysics. 1990;48:445-52.
Pachella RG. The interpretation of reaction time in information-processing research. In B. H. Kantowitz (Ed.) Human information processing: Tutorials in performance and cognition. Hillsdale, NJ. Lawrence Erlbaum Associates. 1974;41-82.
Hyman R. Stimulus information as a determinant of reaction times. J Experi Psychol. 1953;45:188-96.
Ulrich R, Miller J. Effects of truncation on reaction time analysis. J Experi Psychol, General. 1994;123:34-80.
Saunders JB, Aasland OG, Babor TF, de la Fuente, JR, Grant M. Development of the Alcohol Use Disorders Identification Test (AUDIT):WHO collaborative project on early detection of persons with harmful alcohol consumption. II. Addiction. 1993;88:791-804.
Patel M, Singh SK. Effect of pregnancy on visual reaction time. J Obstet and Gynecol India. 2006;56(5):410-2.
Marshall H. Alcohol:a critical review of the literature 1929-1940. Psychological Bulletin. 1941;38(4):193-217.
Maylor EA, Rabbitt PM, James GH, Kerr SA. Effects of alcohol, practice and task complexity on reaction time distributions. Quan J Exper Psy. 1992;44:119-39.
Maylor EA, Rabbitt PM, James GH, Kerr, SA. Effects of alcohol and extended practice on divided-attention performance. Perception and Psychophysics. 1990;48:445-52.
Gustafson R. Alcohol and vigilance performance: effect of small doses of alcohol on simple visual reaction time. Perception and Motor Skills. 1996; 62:951-5.
Oscar-Berman M. Alcoholism and the brain: an overview. Alcohol Research and Health. 2003;27(2):125-33.
Marmot MG, Shipley MJ, Rose G, Thomas BJ. Alcohol and mortality: a U-shaped curve. Lancet. 1981;1:580-3.