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Show 104 James N. Nelson college of social & behavioral science Task switching paradigms are a common way to investigate how cognitive control works in order to main-tain goal oriented behavior. Previous research has found longer response times when switching among multiple tasks compared to repeating the same task. These switch costs have been found for all stimuli regardless of the task; moreover, the size of these costs typically decreases with more preparation time. Additional research has found longer response times when switching back to a recently completed task compared to switching to another task not recently completed. This effect has been termed backwards inhibition, and has been found for a variety of tasks but not for color. The research reported have exam-ined tasks differences in terms of difficulty, switch costs, and backwards inhibition. The difficulty of a task does not appear to determine the size of the switch cost. In addition, under some condition we did find backwards inhibition for the color, but this effect decreased with preparation time. Possible sources of these task effects on task switching are discussed. TASK SWITCHING AND COGNITIVE CONTROL: WHAT IS DIFFERENT ABOUT COLOR? James N. Nelson (Frances J. Friedrich) Department of Psychology University of Utah UNDERGRADUATE RESEARCH ABSTRACTS Frances J. Friedrich |
