A combined fMRI and DTI examination of functional language lateralization and arcuate fasciculus structure: Effects of degree versus direction of hand preference

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A combined fMRI and DTI examination of functional language lateralization and arcuate fasciculus structure: Effects of degree versus direction of hand preference

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Title: A combined fMRI and DTI examination of functional language lateralization and arcuate fasciculus structure: Effects of degree versus direction of hand preference
Author: Propper, Ruth E.; O’Donnell, Lauren J.; Whalen, Stephen; Tie, Yanmei; Norton, Isaiah Hakim; Suarez, Ralph O.; Zollei, Lilla; Radmanesh, Alireza; Golby, Alexandra Jacqueline

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Citation: Propper, Ruth E., Lauren J. O’Donnell, Stephen Whalen, Yanmei Tie, Isaiah H. Norton, Ralph O. Suarez, Lilla Zollei, Alireza Radmanesh, and Alexandra J. Golby. 2010. “A Combined fMRI and DTI Examination of Functional Language Lateralization and Arcuate Fasciculus Structure: Effects of Degree Versus Direction of Hand Preference.” Brain and Cognition 73 (2) (July): 85–92. doi:10.1016/j.bandc.2010.03.004.
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Abstract: The present study examined the relationship between hand preference degree and direction, functional language lateralization in Broca’s and Wernicke’s areas, and structural measures of the arcuate fasciculus. Results revealed an effect of degree of hand preference on arcuate fasciculus structure, such that consistently-handed individuals, regardless of the direction of hand preference, demonstrated the most asymmetric arcuate fasciculus, with larger left versus right arcuate, as measured by DTI. Functional language lateralization in Wernicke’s area, measured via fMRI, was related to arcuate fasciculus volume in consistent-left-handers only, and only in people who were not right hemisphere lateralized for language; given the small sample size for this finding, future investigation is warranted. Results suggest handedness degree may be an important variable to investigate in the context of neuroanatomical asymmetries.
Published Version: 10.1016/j.bandc.2010.03.004
Other Sources: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2880216/
Terms of Use: This article is made available under the terms and conditions applicable to Other Posted Material, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#LAA
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:34178448
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