Bilateral redundancy gain and callosal integrity in a man with callosal lipoma: a diffusion-tensor imaging study

Article


Roser, Matthew E., Corballis, Michael C., Jansari, A., Fulford, Jon, Benattayallah, Abdelmalek and Adams, William M. 2012. Bilateral redundancy gain and callosal integrity in a man with callosal lipoma: a diffusion-tensor imaging study. Neurocase. 18 (3), pp. 185-198.
AuthorsRoser, Matthew E., Corballis, Michael C., Jansari, A., Fulford, Jon, Benattayallah, Abdelmalek and Adams, William M.
Abstract

We investigated whether abnormalities in the structural organisation of the corpus callosum in the presence of curvilinear lipoma are associated with increased facilitation of response time to bilateral stimuli, an effect known as the redundancy gain. A patient (A.J.) with a curvilinear lipoma of the corpus callosum, his genetically-identical twin, and age-matched control participants made speeded responses to luminant stimuli. Structural organisation of callosal regions was assessed with diffusion-tensor imaging. A.J. was found to have reduced structural integrity in the splenium of the corpus callosum and produced a large redundancy gain suggestive of neural summation.

Keywordsredundancy gain; corpus callosum; diffusion-tensor imaging
JournalNeurocase
Journal citation18 (3), pp. 185-198
ISSN1465-3656
1355-4794
Year2012
PublisherTaylor & Francis
Accepted author manuscript
License
CC BY-ND
Web address (URL)http://dx.doi.org/10.1080/13554794.2011.568505
Publication dates
Print2012
Publication process dates
Deposited02 Nov 2012
Copyright informationhis is an Author's Accepted Manuscript of an article published in [include the complete citation information for the final version of the article as published in Neurocase 18(3) [copyright Taylor & Francis], available online at: http://www.tandfonline.com/doi/abs/10.1080/13554794.2011.568505.
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