initial group difference diminished over time. Heavy smokers were found to reach an early plateau, whereas the craving of moderate smokers steadily increased over the course of the day. A different pattern emerged for withdrawal/NA, such that in our data heavy smokers reported significantly greater withdrawal/NA than moderate smokers beginning 3 hours into abstinence. On the other hand, PA decreased over early abstinence and did not differ between groups. Together, these preliminary results suggest that the effects of smoking pattern (heavy vs. moderate) differ over the course of early abstinence and based on the construct of interest.
