Tobacco effects on cortical evoked potentials to distracting stimuli.
In a group of female smokers, cortical evoked potentials (EP) were averaged to low and high intensity auditory stimuli which were presented during both task and non-task conditions and in separate smoking and non-smoking sessions. Four individual EP peaks, P1,N1,P2,N2 and 3 peak-to-peak measures, P1-N2, N1-P2, N2-P2, were involved in amplitude analysis. Tobacco significantly interacted with intensity and task condition to produce both increases (P1, N1) and decreases (P2, P2-N2) in amplitudes of EP peaks. The results are discussed in relation to arousal and information processing.
D000328:Adult; D001143:Arousal / Q000502:physiology; D001288:Attention / Q000502:physiology; D001306:Auditory Pathways / Q000502:physiology; D001921:Brain / Q000502:physiology*; D005072:Evoked Potentials, Auditory; D005260:Female; D006801:Humans; D011597:Psychomotor Performance / Q000502:physiology*; D012907:Smoking