Figure 1.

Changes in negative affect, urge to smoke, and systolic blood pressure prior to and after the Debate Task. The left-hand panels show responses on the ad lib smoking session. The right-hand panels show responses on the smoking deprived session. Negative affect and urge to smoke were assessed on 0 – 100 scales. Ad lib = participants smoked ad lib prior to the experimental session. Deprived = participants were abstinent from smoking for at least 12 hrs prior to the experimental session. Immediate = smoking was allowed after the post-debate assessment. Delayed = smoking was allowed after the 15 minutes post-debate assessment. Negative mood and urge to smoke were significantly higher and systolic blood pressure was significantly lower on the smoking deprived session compared to the ad lib smoking session. Across sessions, negative mood, urge to smoke, and systolic blood pressure increased significantly following the stressor. For negative mood only, there was a significant interaction between hostility group and immediate vs. delayed smoking; immediate smoking, compared to delayed smoking, was associated with more steep reductions in negative mood for HH participants when compared to LH participants. This effect was not moderated by deprivation condition.