Arnon Thasanasuwan. The effects of low dose of alcohol on reaction time . Master's Degree(Forensic Science). Mahidol University. : Mahidol University, 2004.
The effects of low dose of alcohol on reaction time
Abstract:
The purpose of this experiment was to determine the magnitude of alcohol
impairment on driving skill or reaction time with a blood alcohol concentration (BAC)
from 0 and 30-80 mg%. 72 subjects were tested on the SIM and DAT before and after
being treated with alcohol and were divided 3 groups by age, gender and drinking
practice- characteristic,
The means of reaction time (RT) at the BAC values between 0 and 30-80 mg% in
all 72 subjects showed statistical significant different p < 0.001. The means of RT at
BAC 0 and 30-80 mg% in males was statistically significantly different p < 0.001. The
females have significant different between 0 and 40-80 mg% (p < 0.001) and has no
significant difference between 0 and 30 mg% (p > 0.1)
The means of the RT of the four age groups, youthful (18-20 years) and older (51-
69 years) at the BAC valves between 0 and 30-80 mg% was statistically significantly
different p < 0.05 .The means of the RT of the four age groups, youthful (21-24years)
and older (51-69 years) at the BAC values between 0 and 30-80 mg% showed a
statistical significant difference p < 0.001.
The means of reaction time (RT) of the heavy drinker at the different BAC level
0 and 30-80 mg% was statistically significantly different between BAC 0 and 30-80
mg% (p <0.05), in light drinkers; moderate drinkers had no statistical significant
difference between BAC 0 and 30 mg% (p > 0.05) and had statistical significant
different BAC 0 and 40-80 mg% (p < 0.001) The magnitude of the reaction time
increased with increasing BAC.