Evidence map›Paper›PMID 29218570›Full record

ArticleCognitive, affective & behavioral neuroscience2018

Pure correlates of exploration and exploitation in the human brain.

Tommy C Blanchard, Samuel J Gershman

Abstract read
In one paragraph

Article in Cognitive, affective & behavioral neuroscience, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

41 citing papers in PubMed.

  1. Disentangling the roles of dopamine and noradrenaline in the exploration-exploitation tradeoff during human decision-making.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2023
    Trial
  2. Article
  3. Spatiotemporal Decoding of Explore-Exploit Decisions in the Human Brain.bioRxiv : the preprint server for biology · 2026
    Article
  4. Article
  5. Understanding human metacontrol and its pathologies using deep neural networks.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Troubleshooting Bayesian cognitive models.Psychological methods · 2025
    Article
  11. Article
  12. Article
  13. Modelling cognitive flexibility with deep neural networks.Current opinion in behavioral sciences · 2024
    Article
  14. Article
  15. Article
  16. Motor System-Dependent Effects of Amygdala and Ventral Striatum Lesions on Explore-Exploit Behaviors.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2024
    Article
  17. Article
  18. Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

2 authors.

Tommy C BlanchardDepartment of Psychology and Center for Brain Science, Harvard University, 52 Oxford St., Room 295.05, Cambridge, MA, 02138, USA.
Samuel J GershmanDepartment of Psychology and Center for Brain Science, Harvard University, 52 Oxford St., Room 295.05, Cambridge, MA, 02138, USA. gershman@fas.harvard.edu.

Funding

Upgrade Siemens MAGNETOM Trio to MAGNETOM Prisma Fit 3T Human MRI SystemS10OD020039 · OD · HARVARD UNIVERSITY · PI BUCKNER, RANDY L · 2015 to 2015
$600k
NIH HHS S10 OD020039
6 · The paper itself

Abstract

Balancing exploration and exploitation is a fundamental problem in reinforcement learning. Previous neuroimaging studies of the exploration-exploitation dilemma could not completely disentangle these two processes, making it difficult to unambiguously identify their neural signatures. We overcome this problem using a task in which subjects can either observe (pure exploration) or bet (pure exploitation). Insula and dorsal anterior cingulate cortex showed significantly greater activity on observe trials compared to bet trials, suggesting that these regions play a role in driving exploration. A model-based analysis of task performance suggested that subjects chose to observe until a critical evidence threshold was reached. We observed a neural signature of this evidence accumulation process in the ventromedial prefrontal cortex. These findings support theories positing an important role for anterior cingulate cortex in exploration, while also providing a new perspective on the roles of insula and ventromedial prefrontal cortex.

Indexed as

Brain MappingReinforcement, PsychologyAdultBrainDecision MakingFemaleHumansLearningMagnetic Resonance ImagingMaleNeuroimagingTask Performance and AnalysisYoung Adultdecision makingfMRIreinforcement learning

Identifiers

PMID29218570
PMCPMC5825268

What OpenQuestion holds

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Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.