SOME CHARACTERISTIC EEG DIFFERENCES BETWEEN HEAVY SMOKER AND NON-SMOKER SUBJECTS

The spontaneous EEG recordings of heavy smoker subjects were readily distinguishable from those of non-smoker subjects by minimal content of alpha activity, higher frequency of alpha, and an abundance of rhythmic and synchronous, high amplitude 12 to 25 c/s activity. EEG responses to visual stimuli also differed between the 2 groups. EEG activity and visual responses for average smoker and former heavy smoker subjects were generally intermediate between those of the non-smokers and heavy smokers. © 1968.