SMOKING-RELATED SUBJECTIVE AND PHYSIOLOGICAL-CHANGES - PREPUFF TO POSTPUFF AND PRECIGARETTE TO POSTCIGARETTE

Twenty-six female regular smokers participated in two sessions, smokin g a cigarette and drinking for comparison a cup of coffee in each. Car diovascular, electromyogram (EMG), motor activity, and electroencephal ogram (EEG) parameters were assessed before and after smoking a cigare tte or drinking a cup of coffee. The same variables were averaged for 5-s periods preceding, during, and following the first six puffs and s ips. As the expected psychophysiological changes might be related to p leasure, the experimental design included both pleasant-tasting coffee and cigarettes and preparations manipulated to be unpleasant. Compari ng pre/post consumption and pre/post puffing changes, heart rate incre ased as expected pre/post a cigarette but not pre/post puffing. On the other hand, there was no change in heart rate pre/post a cup of coffe e but a transient increase pre/post sipping. The pre/post puffing and pre/post sipping changes in the EEG power distribution were similar fo r both drugs, occurred already in anticipation of puffing and sipping, and qualitatively suggested sedation as opposed to the pre/post cigar ette arousing effects. These results might explain the observations of subjective tranquilizing effects during the consumption of a stimulan t. Although the taste manipulations produced significant subjective ef fects, they did not influence the anticipatory effects.