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

Journal of the International Neuropsychological Society : JINS
Warren S BrownLynn K Paul

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.

Citations

Jan 18, 2007·Journal of Abnormal Child Psychology·Silvia CiairanoMichele Settanni
Dec 7, 2002·Brain and Language·Heather G Belanger, Cynthia R Cimino
Jan 15, 2013·Developmental Neuropsychology·Vanessa SiffrediMegan M Spencer-Smith
Jun 23, 2012·Archives of Clinical Neuropsychology : the Official Journal of the National Academy of Neuropsychologists·Warren S BrownLynn K Paul
Aug 7, 2013·Journal of Cognitive Neuroscience·Arnaud CachiaOlivier Houdé
Apr 29, 2014·Brain : a Journal of Neurology·Lynn K PaulRalph Adolphs
Mar 27, 2009·Child: Care, Health and Development·P MoesG Schilmoeller
Jun 17, 2014·Neuropsychologia·Roger L EricksonWarren S Brown
Jul 28, 2016·Brain and Language·Jamie L RehmelLynn K Paul
Dec 14, 2004·Canadian Journal of Occupational Therapy. Revue Canadienne D'ergothérapie·Susan Mulholland, Michele Derdall
Mar 22, 2007·Nature Reviews. Neuroscience·Lynn K PaulElliott H Sherr
Apr 22, 2017·Archives of Clinical Neuropsychology : the Official Journal of the National Academy of Neuropsychologists·Luke B AndersonWarren S Brown
Feb 22, 2017·Frontiers in Psychology·Beatrix Lábadi, Anna M Beke
Mar 23, 2021·Journal of the International Neuropsychological Society : JINS·Ryan W MangumLynn K Paul
Mar 27, 2021·Journal of Autism and Developmental Disorders·Tiffany Renteria-VazquezLynn K Paul

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