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The counting Stroop: An interference task specialized for functional neuroimaging— validation study with functional MRI (1998)
| Venue: | Human Brain Mapping |
| Citations: | 135 - 4 self |
BibTeX
@ARTICLE{Bush98thecounting,
author = {George Bush and Paul J. Whalen and Bruce R. Rosen and Michael A. Jenike and Sean C. Mcinerney and Scott L. Rauch},
title = {The counting Stroop: An interference task specialized for functional neuroimaging— validation study with functional MRI},
journal = {Human Brain Mapping},
year = {1998},
pages = {270--282}
}
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Abstract
r r Abstract: The anterior cingulate cortex has been activated by color Stroop tasks, supporting the hypothesis that it is recruited to mediate response selection or allocate attentional resources when confronted with competing information-processing streams. The current study used the newly developed ‘‘Counting Stroop’ ’ to identify the mediating neural substrate of cognitive interference. The Counting Stroop, a Stroop variant allowing on-line response time measurements while obviating speech, was created because speaking produces head movements that can exceed those tolerated by functional magnetic resonance imaging (fMRI), preventing the collection of vital performance data. During this task, subjects report by button-press the number of words (1–4) on the screen, regardless of word meaning. Interference trials contain number words that are incongruent with the correct response (e.g., ‘‘two’ ’ written three times), while neutral trials contain single semantic category common animals (e.g., ‘‘bird’’). Nine normal right-handed adult volunteers underwent fMRI while performing the Counting Stroop. Group fMRI data revealed significant (P # 10-4) activity in the cognitive division of anterior cingulate cortex when contrasting the interference vs. neutral conditions. On-line performance data showed 1) longer reaction times for interference blocks than for neutral ones, and 2) decreasing reaction times with practice during
Keyphrases
counting stroop functional mri functional neuroimaging validation study interference task reaction time anterior cingulate cortex correct response subject report attentional resource functional magnetic resonance imaging vital performance data interference trial interference block on-line performance data number word cognitive division neutral condition speaking produce interference v neutral trial current study neutral one on-line response time measurement response selection color stroop task single semantic category common animal word meaning cognitive interference neural substrate information-processing stream stroop variant
