The locus of the emotional Stroop effect: A study with the PRP paradigm |
| |
Authors: | Markus Janczyk Susanne AugstWilfried Kunde |
| |
Affiliation: | University of Würzburg, Department of Psychology III, Röntgenring 11, 97070 Würzburg, Germany |
| |
Abstract: | Stimuli that are clearly positive or negative (hence valence-laden stimuli) have the potential to interrupt unrelated task processing. A typical example is the emotional Stroop effect (ESE) in which responding to a certain task feature (e.g., color) is delayed by the presentation of task-irrelevant valent stimuli (e.g., negative pictures) compared to valence-neutral stimuli. Here we scrutinize which processes are slowed down by irrelevant but valent stimulation. In Experiment 1, participants performed in a Psychological Refractory Period (PRP) experiment with tone discrimination as Task 1 and color discrimination as Task 2. Importantly, colors in Task 2 were accompanied by valent or neutral pictures. Valent pictures delayed responding in Task 2 (thus an ESE) and this delay was additive to the time interval between tasks. In Experiment 2, task order was reversed and the ESE in Task 1 fully propagated to the Task 2 tone discrimination. These results imply that irrelevant valence-laden stimulation delays capacity-limited processes, and we suggest that this is a late perceptual process acting on stimulus categorization. |
| |
Keywords: | 2300 2346 2360 |
本文献已被 ScienceDirect 等数据库收录! |
|