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Regions, networks: Interpreting functional neuroimaging data

Published online by Cambridge University Press:  04 February 2010

Barry Horwitz
Barry Horwitz
Affiliation:
Laboratory of Neurosciences, National Institute on Aging, National Institutes of Health, Bethesda, MD 20892horwitz@alw.nih.gov
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Abstract

The subtraction and covariance paradigms are two analytic techniques used with functional neuroimaging data. The first assumes that a brain region participating in a task should show altered neural activity (relative to a control task). The second assumes that tasks are mediated by networks of interacting regions.Images of mind attempts to link results from the subtraction paradigm with a network interpretation that could have been more explicitly done using the covariance paradigm.

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Open Peer Commentary
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Behavioral and Brain Sciences , Volume 18 , Issue 2 , June 1995 , pp. 360
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Copyright © Cambridge University Press 1995

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