We used a PC loaded with Psychology Tools’ E-Prime software (v 1.1; Pittsburgh, PA) to present 91.5 cm × 122 cm slide images with a digital projector on a screen approximately 1.5 m from the participant. Forty-eight color slides were presented: Twelve each from the categories of pleasant, neutral, unpleasant, and cigarette using procedures similar to those of Cuthbert et al. (1996). The pleasant, neutral, and unpleasant slides were selected from the International Affective Picture System (IAPS;1 Center for the Study of Emotion and Attention, 1999). The unpleasant slides were selected from the negatively valenced, high arousal dimensions, the pleasant slides from the positively valenced, high arousal dimensions, and the neutral slides from the neutrally valenced, low arousal dimensions. The cigarette slides, which consisted of smoking cues such as images of burning cigarettes and people smoking in a social context, were created for this type of experiment and were validated previously (Carter et al., 2006).
