Study of reaction time in smokers.

A significant decrease in the visual and auditory reaction times (VRT and ART) was found in 50 smokers as compared to healthy controls of the same age group (P less than 0.001). The acute effect of smoking one cigarette was also studied in the same group of smokers and a statistically significant reduction was found (P less than 0.001) as compared to their basal VRT and ART.