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Interhemispheric Stroop effects in partial and complete agenesis of the corpus callosum

Brown, Warren S. and Thrasher, Ellen D. and Paul, Lynn K. (2001) Interhemispheric Stroop effects in partial and complete agenesis of the corpus callosum. Journal of the International Neuropsychological Society, 7 (3). pp. 302-311. ISSN 1355-6177. doi:10.1017/s1355617701733048. https://resolver.caltech.edu/CaltechAUTHORS:20210224-151614988

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Abstract

Previous research had demonstrated diminished interhemispheric Stroop effects in individuals with agenesis of the corpus callosum (ACC), suggesting an important role for the callosum in interhemispheric color-word and color-patch interactions. However, this outcome rested on the results of only 1 ACC participant, who had normal intelligence and a minimum of other neuropathology. In the research reported herein, the role of the corpus callosum in interhemispheric Stroop interference and facilitation was investigated in 9 individuals with complete or partial ACC and normal intelligence, and in non-ACC controls. Congruent, incongruent, or neutral stimulus pairs were presented either unilaterally (color-patch and color-word in the same visual field) or bilaterally (color-patch and color-word in different visual fields). Both unilateral and bilateral (interhemispheric) Stroop interference were found for both ACC and non-ACC groups, with no significant difference in magnitude, indicating that extracallosal pathways are sufficient for mediating this phenomenon. It is suggested that the anterior commissure is a more likely candidate for the interhemispheric transmission of the semantic information resulting in Stroop interference.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1017/s1355617701733048DOIArticle
ORCID:
AuthorORCID
Brown, Warren S.0000-0001-6142-5588
Paul, Lynn K.0000-0002-3128-8313
Additional Information:© 2001 INS. Published by Cambridge University Press. Received October 18, 1999; Revised March 14, 2000; Accepted March 22, 2000.
Subject Keywords:Stroop interference, Agenesis of the corpus callosum, Interhemispheric interactions, Anterior commissure
Issue or Number:3
DOI:10.1017/s1355617701733048
Record Number:CaltechAUTHORS:20210224-151614988
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20210224-151614988
Official Citation:Brown, W., Thrasher, E., & Paul, L. (2001). Interhemispheric Stroop effects in partial and complete agenesis of the corpus callosum. Journal of the International Neuropsychological Society, 7(3), 302-311. doi:10.1017/S1355617701733048
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:108185
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:24 Feb 2021 23:20
Last Modified:16 Nov 2021 19:09

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