Automaticity and re-establishment of executive control, an fMRI study
Citation:
Kubler, A., Dixon, V, & Garavan, H. `Automaticity and re-establishment of executive control, an fMRI study? in Journal of Cognitive Neuroscience, 18, 2006, pp 1331 - 1342Download Item:
Abstract:
The ability to exert control over automatic behavior is of
particular importance as it allows us to interrupt our behavior
when the automatic response is no longer adequate or even
dangerous. However, despite the literature that exists on the
effects of practice on brain activation, little is known about
the neuroanatomy involved in reestablishing executive con-
trol over previously automatized behavior. We present a visual
search task that enabled participants to automatize accord-
ing to defined criteria within about 3 hr of practice and then
required them to reassert control without changing the stim-
ulus set. We found widespread cortical activation early in
practice. Activation in all frontal areas and in the inferior pari-
etal lobule decreased significantly with practice. Only se-
lected prefrontal (Brodmann?s areas [BAs] 9/46/8) and parietal
areas (BAs 39/40) were specifically reactivated when execu-
tive control was required, underlining the crucial role of the
dorsolateral prefrontal cortex in executive control to guide our
behavior.
Author's Homepage:
http://people.tcd.ie/garavanhDescription:
PUBLISHED
Author: GARAVAN, HUGH PATRICK
Publisher:
MIT PressType of material:
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Series/Report no:
Journal of Cognitive Neuroscience18
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