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Self-regulatory depletion enhances neural responses to rewards and impairs top-down control.


ABSTRACT: To be successful at self-regulation, individuals must be able to resist impulses and desires. The strength model of self-regulation suggests that when self-regulatory capacity is depleted, self-control deficits result from a failure to engage top-down control mechanisms. Using functional neuroimaging, we examined changes in brain activity in response to viewing desirable foods among 31 chronic dieters, half of whom completed a task known to result in self-regulatory depletion. Compared with nondepleted dieters, depleted dieters exhibited greater food-cue-related activity in the orbitofrontal cortex, a brain area associated with coding the reward value and liking aspects of desirable foods; they also showed decreased functional connectivity between this area and the inferior frontal gyrus, a region commonly implicated in self-control. These findings suggest that self-regulatory depletion provokes self-control failure by reducing connectivity between brain regions that are involved in cognitive control and those that represent rewards, thereby decreasing the capacity to resist temptations.

SUBMITTER: Wagner DD 

PROVIDER: S-EPMC4151046 | biostudies-literature | 2013 Nov

REPOSITORIES: biostudies-literature

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Self-regulatory depletion enhances neural responses to rewards and impairs top-down control.

Wagner Dylan D DD   Altman Myra M   Boswell Rebecca G RG   Kelley William M WM   Heatherton Todd F TF  

Psychological science 20130911 11


To be successful at self-regulation, individuals must be able to resist impulses and desires. The strength model of self-regulation suggests that when self-regulatory capacity is depleted, self-control deficits result from a failure to engage top-down control mechanisms. Using functional neuroimaging, we examined changes in brain activity in response to viewing desirable foods among 31 chronic dieters, half of whom completed a task known to result in self-regulatory depletion. Compared with nond  ...[more]

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