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Role of medial frontal cortex in endogenous and exogenous control in task switching
 

Summary: Role of medial frontal cortex in endogenous and exogenous
control in task switching
Esther Aarts a,b, Ardi Roelofs a,b, & Miranda van Turennout a,c
a F.C. Donders Centre for Cognitive Neuroimaging, b Nijmegen Institute for Cognition and Information,
c Behavioural Science Institute, Radboud University Nijmegen, The Netherlands
Introduction
Control processes in task switching include endogenous and
exogenous components(1,2)
. Endogenous processes can be
evoked by an instruction cue allowing for task preparation for
an upcoming imperative stimulus (i.e. instruction-related).
Stimuli to be acted on may evoke exogenous adjustments in
control (i.e. stimulus-related). MacDonald et al.(3)
found the
anterior cingulate cortex (ACC) to be active for stimulus-related
control processes only, which they assumed to involve response
conflict detection. Other evidence, however, points to a role for
the ACC in instruction-related control processes(4)
. Furthermore,
it has been argued that the medial part of the superior frontal

  

Source: Aarts, Esther - Helen Wills Neuroscience Institute, University of California at Berkeley

 

Collections: Biology and Medicine