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Cited by 253

The DOI matches its Crossref record; 8 of the 8 references it cites were found in a registry or an index.

Dissociation of Frontal and Cerebellar Activity in a Cognitive Task: Evidence for a Distinction between Selection and Search

Open access
Desmond, John E., Gabrieli, John D.E., Glover, Gary H.·1998·NeuroImage

Abstract

Human brain imaging studies have found that increases in functional activation in left-frontal cortex during cognitive tasks are often accompanied by similar increases in right-cerebellar regions. The present study used functional magnetic resonance imaging (fMRI) to investigate the distinctive contributions of these regions using a word stem completion task. Stems with many possible completions (MANY condition) were alternately presented with stems that had few possible completions (FEW condition), and subjects were asked to covertly complete each stem with a word and press a response switch for each successful completion. Prominent increases in activation in the MANY, relative to the FEW, condition were observed in the left middle frontal gyrus (Brodmann areas 9/10) and left caudate nucleus. In contrast, portions of the right-cerebellar hemisphere (posterior quadrangular lobule and superior semilunar lobule) and cerebellar vermis exhibited increases in the FEW, relative to the MANY, condition. This double dissociation suggests that the frontal and cerebellar regions make distinctive contributions to cognitive performance, with left-frontal (and striatal) activations reflecting response selection, which increases in difficulty when there are many appropriate responses, and right-cerebellar activation reflecting the search for responses, which increases in difficulty when even a single appropriate response is hard to retrieve.

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Crossref · 10.1006/nimg.1998.0340

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Metadata

Authors
Desmond, J. E., Gabrieli, J. D. E., & Glover, G. H.
Venue
NeuroImage
Publisher
Elsevier BV
Published
1998-05
Volume
7
Issue
4
Pages
368-376
ISSN
1053-8119 (ISSN-L)
OpenAlex
W1989160666
Cited by
253
References
8
FWCI
8.85
Type
journal article
Language
en
Open access
hybrid

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