![]() The first author is supported by a National Science Foundation Graduate Research Fellowship (NSF Award No. The study also provides a novel technique in assessing emotional contrasts by examining LPP differences among particular trial sequences. Results provide the first neural support for the contrast-avoidance model by demonstrating heightened sensitivity to emotional contrasts among high-anxious individuals. These data suggest that trait anxiety is associated with more attention allocation to negative imagery immediately preceded by neutral stimuli. Participants in the Medium ITI group had higher accuracy (F(2,32) = 3.9, p 0.2), NEV rated smoking cues as unpleasant (p 5.0, ps 12.0, ps rs > -.16). All other task procedures were identical across groups. In a between-subjects design using a Stroop task, the ITI-the interval between a keypress response and next-stimulus onset-was 768 ms (Short ITI), 1280 ms (Medium ITI), or 1792 ms (Long ITI). Addressing one such parameter, this study assessed the effect of inter-trial interval (ITI) duration on self-monitoring. Seemingly trivial changes in task parameters may alter behavior and psychophy-siological measures during task performance, contributing to variability across labs and potential failures of replication. Rebecca Compton, Elizabeth Heaton, & Emily Ozer Haverford Collegeĭescriptors: cognitive control, ERN, error-monitoring Together, these findings suggest that rapid mechanistic processes for affective valence are dependent on visual modalities, but these are enhanced by concurrent affective sounds, paving the way towards an understanding of the construction of multi-modal affective experience.Ī "GOLDILOCKS EFFECT" IN TRIAL TIMING: PERFORMANCE AND NEURAL INDICES OF SELF-MONITORING DEPEND ON THE INTER-TRIAL INTERVAL DURATION Time frequency analyses revealed significant mid frontal theta-band power differences between conflicting and congruent stimuli pairs suggesting very early (>500ms) realizations of thematic fidelity violations. The results of Experiment 2 replicated the findings from Experiment 1, whereby negative visual stimuli evoked larger LPPs. positive audio 1 positive visual) or conflicting emotional pairs (i.e. Experiment 2 manipulated this enhanced effect by altering the valence pairings with congruent (i.e. Interestingly, paired picture-sound conditions had the greatest differentiation. Experiment 1 (N = 23) revealed statistically significant differences in brain potentials between positive and negative valenced pictures (negative > positive), but not sounds. This series of studies aimed to probe the mechanistic contribution of the Late Positive Potential (LPP) to emotion perception. EEG is particularly sensitive to real-time neural computations, and thus is an excellent tool for the study of the construction of emotion. Cavanagh University of New MexicoĮmotion is thought to be an emergent construct of multiple primitive sub-processes. "THE SOUND AND THE FURY": AFFECTIVE SOUNDS MODULATE BUT DON'T ELICIT AN LPPĭarin R. ![]() POSTER SESSION I _WEDNESDAY, SEPTEMBER 21, 2016_
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