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Trends Cogn Sci. 2011 Apr;15(4):143-51. doi: 10.1016/j.tics.2011.02.002. Epub 2011 Mar 21.

Posterior cingulate cortex: adapting behavior to a changing world.

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  • 1Department of Neurobiology, Duke University Medical Center, Durham, NC 27710, USA.

Abstract

When has the world changed enough to warrant a new approach? The answer depends on current needs, behavioral flexibility and prior knowledge about the environment. Formal approaches solve the problem by integrating the recent history of rewards, errors, uncertainty and context via Bayesian inference to detect changes in the world and alter behavioral policy. Neuronal activity in posterior cingulate cortex - a key node in the default network - is known to vary with learning, memory, reward and task engagement. We propose that these modulations reflect the underlying process of change detection and motivate subsequent shifts in behavior.

Copyright © 2011 Elsevier Ltd. All rights reserved.

PMID:
21420893
[PubMed - indexed for MEDLINE]
PMCID:
PMC3070780
Free PMC Article
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