NDLI: Frontal Callosal Fiber Integrity Selectively Predicts Coordinated Psychomotor Performance in Chronic Alcoholism

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Frontal Callosal Fiber Integrity Selectively Predicts Coordinated Psychomotor Performance in Chronic Alcoholism

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Frontal Callosal Fiber Integrity Selectively Predicts Coordinated Psychomotor Performance in Chronic Alcoholism

Content Provider	Springer Nature Link
Author	Rosenbloom, Margaret J. Sassoon, Stephanie A. Fama, Rosemary Sullivan, Edith V. Pfefferbaum, Adolf
Copyright Year	2007
Abstract	Quantitative fiber tracking with diffusion tensor imaging (DTI) provides a new approach for assessing deficits in the microstructural integrity of white matter circuits that may underlie cognitive deficits associated with conditions affecting white matter, including chronic alcoholism.Alcoholic men and women (n = 87) and healthy controls (n = 88) performed the Digit Symbol (DS) test and underwent structural and diffusion tensor imaging. Measures of fractional anisotropy (FA) of fibers passing through genu and splenium were computed, as were size of genu and splenium fiber target regions of interest (ROI).Alcoholics scored lower than controls on the DS and had even greater deficits in genu than splenium fiber FA. In alcoholics, fiber FA of the genu selectively predicted DS scores after accounting for splenium FA. Neither fiber FA measure predicted incidental recall of the symbols used in the task. Size of genu and splenium ROI, although reduced in alcoholics, did not predict DS score or incidental recall.Quantitative tractography of frontal fibers connecting left and right hemispheres selectively predicted performance by alcoholics on a coordinated psychomotor task and provide support for frontally based systems in Digit Symbol performance, both of which are compromised in recovering alcoholics.
Starting Page	74
Ending Page	83
Page Count	10
File Format	PDF
ISSN	19317557
Journal	Brain Imaging and Behavior
Volume Number	2
Issue Number	2
e-ISSN	19317565
Language	English
Publisher	Springer-Verlag
Publisher Date	2008-02-08
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Fiber tractography Diffusion tensor imaging Corpus callosum Alcoholism Digit Symbol test Genu Splenium Health Psychology Child & School Psychology Clinical Psychology Cognitive Psychology Neuropsychology Public Health/Gesundheitswesen
Content Type	Text
Resource Type	Article
Subject	Neurology Radiology, Nuclear Medicine and Imaging Cognitive Neuroscience Behavioral Neuroscience Neurology (clinical) Cellular and Molecular Neuroscience Psychiatry and Mental Health

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Frontal Callosal Fiber Integrity Selectively Predicts Coordinated Psychomotor Performance in Chronic Alcoholism

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Variability of homotopic and heterotopic callosal connectivity in partial agenesis of the corpus callosum: a 3t diffusion tensor imaging and q-ball tractography study (2009)

Frontal Callosal Fiber Integrity Selectively Predicts Coordinated Psychomotor Performance in Chronic Alcoholism

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Frontal Callosal Fiber Integrity Selectively Predicts Coordinated Psychomotor Performance in Chronic Alcoholism