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The size of the anterior corpus callosum correlates with the strength of hemispheric encoding-retrieval asymmetry in the ventrolateral prefrontal cortex
Umeå University, Faculty of Medicine, Department of Radiation Sciences, Diagnostic Radiology. Umeå University, Faculty of Medicine, Department of Integrative Medical Biology (IMB), Physiology. Umeå University, Faculty of Medicine, Umeå Centre for Functional Brain Imaging (UFBI). University of Bergen.
Umeå University, Faculty of Medicine, Department of Integrative Medical Biology (IMB), Physiology. Stockholm University.
University of Bergen.
2011 (English)In: Brain Research, ISSN 0006-8993, E-ISSN 1872-6240, Vol. 1419, 61-67 p.Article in journal (Refereed) Published
Abstract [en]

Functional lateralization of episodic memory processes in the frontal lobe is an area of intense study in the field of cognitive neuroimaging. Yet, to date there is insufficient knowledge of what role the interhemispheric structural connectivity plays in this lateralized organization. We analyzed functional and structural magnetic resonance imaging data from healthy adult volunteers who performed an associative encoding and retrieval task. We examined the relationship between functional voxel-based relative asymmetry of encoding and retrieval in the frontal lobes and the size of the anterior corpus callosum (antCC; corrected for brain size). The size of the antCC was strongly associated to the relative encoding-retrieval asymmetry in the ventrolateral prefrontal cortex (BA 47). These findings show that the functional asymmetry of episodic memory processes in the frontal lobes is associated with the structural connectivity between the hemispheres. (C) 2011 Elsevier B.V. All rights reserved.

Place, publisher, year, edition, pages
Amsterdam: Elsevier, 2011. Vol. 1419, 61-67 p.
Keyword [en]
Corpus callosum, Functional lateralization, Episodic memory, HERA model
National Category
Neurosciences Neurology
Identifiers
URN: urn:nbn:se:umu:diva-50527DOI: 10.1016/j.brainres.2011.08.052ISI: 000296930200007OAI: oai:DiVA.org:umu-50527DiVA: diva2:464989
Available from: 2011-12-14 Created: 2011-12-13 Last updated: 2017-12-08Bibliographically approved

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Kompus, KristiinaKalpouzos, Gregoria
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CiteExportLink to record
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