Cited by 199Neural and Behavioral Psychology StudiesNeurobiology of Language and BilingualismCognitive Functions and Memory

Computational and neurobiological mechanisms underlying cognitive flexibility

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Badre, David, Wagner, Anthony D.·2006·Proceedings of the National Academy of Sciences

Abstract

The ability to switch between multiple tasks is central to flexible behavior. Although switching between tasks is readily accomplished, a well established consequence of task switching (TS) is behavioral slowing. The source of this switch cost and the contribution of cognitive control to its resolution remain highly controversial. Here, we tested whether proactive interference arising from memory places fundamental constraints on flexible performance, and whether prefrontal control processes contribute to overcoming these constraints. Event-related functional MRI indexed neural responses during TS. The contributions of cognitive control and interference were made theoretically explicit in a computational model of task performance. Model estimates of two levels of proactive interference, "conceptual conflict" and "response conflict," produced distinct preparation-related profiles. Left ventrolateral prefrontal cortical activation paralleled model estimates of conceptual conflict, dissociating from that in left inferior parietal cortex, which paralleled model estimates of response conflict. These computationally informed neural measures specify retrieved conceptual representations as a source of conflict during TS and suggest that left ventrolateral prefrontal cortex resolves this conflict to facilitate flexible performance.

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Crossref · 10.1073/pnas.0509550103

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Authors
Badre, D., & Wagner, A. D.
Affiliations
  • Massachusetts Institute of Technology (US)
  • Stanford University (US)
Venue
Proceedings of the National Academy of Sciences
Published
2006-05-02
Volume
103
Issue
18
Pages
7186-7191
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2119714841
Cited by
199
References
47
Citations by year
2026: 7 · 2025: 6 · 2024: 15 · 2023: 11 · 2022: 9 · 2021: 10 · 2020: 16 · 2019: 10 · 2018: 9 · 2017: 4 · 2016: 8 · 2015: 9 · 2014: 12 · 2013: 9 · 2012: 12
FWCI
4.53
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neurobiology of Language and Bilingualism
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Cognitive Functions and Memory
Keywords
cognitive flexibility, task switching, switch costs, proactive interference, cognitive control, ventrolateral prefrontal cortex, inferior parietal cortex, conceptual disputes, response conflict
MeSH terms
Adolescent, Adult, Brain Mapping, Cognition, Computer Simulation, Female, Humans, Magnetic Resonance Imaging, Memory, Psychomotor Performance, Task Performance and Analysis, Computational Biology

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