The interaction of anticipatory anxiety and emotional picture processing: An event-related brain potential study
Bublatzky, F., Flaisch, T., Stockburger, J., Schmälzle, R., & Schupp, H. T. (2010). The interaction of anticipatory anxiety and emotional picture processing: An event-related brain potential study. Psychophysiology, 47, 687-696. doi: 10.1111/j.1469-8986.2010.00966.x
The present study examined the interaction of anticipatory anxiety and selective emotion processing. Toward this end, a rapid stream of pleasant, neutral, and unpleasant pictures was presented in alternating blocks of threat-of-shock or safety, which were signaled by colored picture frames. The main finding is that pleasant pictures elicited a sustained negative difference potential over occipital regions during threat as compared to safety periods. In contrast, unpleasant and neutral picture processing did not vary as a function of threat-of-shock. Furthermore, in both the safety and threat-of-shock conditions, emotional pictures elicited an enlarged early posterior negativity and late positive potential. These data show that the activation of the fear/anxiety network exerts valence-specific effects on affective picture processing. Pleasant stimuli mismatching the current state of anticipatory anxiety apparently draw more attentional resources.