Journal
PSYCHOLOGICAL SCIENCE
Volume 17, Issue 4, Pages 351-357Publisher
SAGE PUBLICATIONS INC
DOI: 10.1111/j.1467-9280.2006.01710.x
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The development of cognitive control and its relation to overcoming Stroop interference was assessed in a sample (N = 65) of elementary-school children. Subjects alternately performed Stroop color-naming trials and word-reading trials. In separate blocks, the colored Stroop items were non-color words (incongruent condition) or rows of asterisks (neutral condition). Younger children showed both larger Stroop interference in error rates and a greater slowing of word reading in the incongruent condition compared with older children. We conducted analyses of response time distributions that assessed the degree of word-reading suppression applied by younger and older children. Surprisingly, these analyses indicated that younger children engaged in stronger suppression than older children. We propose that greater Stroop interference among younger children is not due to lack of ability to suppress word reading, but instead is the result of a failure to consistently maintain the task set of color naming.
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