With COR EMG, we found a significant main effect of slide valence, F(3, 315) = 8.99, p < .0001, such that COR EMG was larger to unpleasant slides compared to pleasant, cigarette, and neutral slides (see Table 3). We found no effect of treatment regimen, either as a main effect or as an interaction with slide valence. With in-session ratings, we found a main effect for slide valence for craving, F(3, 324) = 3.06, p < .03; negative mood, F(3, 324) = 9.65, p < .0001; and positive mood, F(3, 324) = 27.21, p < .0001 (see Table 3). Craving was larger following smoking slides compared to unpleasant and neutral slides, negative mood was larger following unpleasant slides compare to neutral, pleasant, and smoking slides, and positive mood was larger following positive and smoking slides, neutral and unpleasant. We found no main effect of treatment regimen for any of the in-session ratings, or any interactions of those terms with slide valence. Overall, these findings indicate that the COR EMG and in-session ratings were responsive to the valence of the slides used in our experimental task.
