Evidence map›Paper›PMID 29954865›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2018

Valuation of knowledge and ignorance in mesolimbic reward circuitry.

Caroline J Charpentier, Ethan S Bromberg-Martin, Tali Sharot

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 92 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
92citing papers in PubMed, 1 pooled it
–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

92 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Prevalence and predictors of medical information avoidance: a systematic review and meta-analysis.Annals of behavioral medicine : a publication of the Society of Behavioral Medicine · 2025
    Pooled it
  2. Trial
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  9. Prefrontal cortex development and its implications in mental illness.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2026
    Review
  10. Review
  11. Addressing Altered Anticipation as a Transdiagnostic Target Through Computational Psychiatry.Biological psychiatry. Cognitive neuroscience and neuroimaging · 2025
    Review
  12. Article
  13. Do goldfish like to be informed?Proceedings. Biological sciences · 2025
    Article
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32 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors.

Caroline J CharpentierAffective Brain Lab, Department of Experimental Psychology, University College London, WC1H 0AP London, United Kingdom; ccharpen@caltech.edu t.sharot@ucl.ac.uk.
Ethan S Bromberg-MartinDepartment of Neuroscience, Columbia University, New York, NY 10032.
Tali SharotAffective Brain Lab, Department of Experimental Psychology, University College London, WC1H 0AP London, United Kingdom; ccharpen@caltech.edu t.sharot@ucl.ac.uk.

Funding

MECHANISMS OF INFORMATION SEEKING IN THE PRIMATE BRAINR01MH116937 · NIMH · WASHINGTON UNIVERSITY · PI Ilya E. Monosov · 2019 to 2026
$4.0M
Neural Circuits that Regulate Risk SeekingR01MH110594 · NIMH · WASHINGTON UNIVERSITY · PI Ilya E. Monosov · 2017 to 2026
$3.9M
NIMH NIH HHS R01 MH110594NIMH NIH HHS R01 MH116937Wellcome Trust
6 · The paper itself

Abstract

The pursuit of knowledge is a basic feature of human nature. However, in domains ranging from health to finance people sometimes choose to remain ignorant. Here, we show that valence is central to the process by which the human brain evaluates the opportunity to gain information, explaining why knowledge may not always be preferred. We reveal that the mesolimbic reward circuitry selectively treats the opportunity to gain knowledge about future favorable outcomes, but not unfavorable outcomes, as if it has positive utility. This neural coding predicts participants' tendency to choose knowledge about future desirable outcomes more often than undesirable ones, and to choose ignorance about future undesirable outcomes more often than desirable ones. Strikingly, participants are willing to pay both for knowledge and ignorance as a function of the expected valence of knowledge. The orbitofrontal cortex (OFC), however, responds to the opportunity to receive knowledge over ignorance regardless of the valence of the information. Connectivity between the OFC and mesolimbic circuitry could contribute to a general preference for knowledge that is also modulated by valence. Our findings characterize the importance of valence in information seeking and its underlying neural computation. This mechanism could lead to suboptimal behavior, such as when people reject medical screenings or monitor investments more during bull than bear markets.

Indexed as

KnowledgeRewardHumansLimbic SystemNeural PathwaysNucleus AccumbensPrefrontal CortexVentral Tegmental Areadecision makingignoranceinformation seekingknowledgevalence

Identifiers

PMID29954865
PMCPMC6077743

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.