Evidence map›Paper›PMID 30889493›Full record

ArticleCognition2019

Monkeys are curious about counterfactual outcomes.

Maya Zhe Wang, Benjamin Y Hayden

Abstract read
In one paragraph

Article in Cognition, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing 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

27 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Role of the striatum in counterfactual information seeking.Social cognitive and affective neuroscience · 2026
    Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Counterfactual curiosity: motivated thinking about what might have been.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2022
    Review
  18. Thinking about possibilities: mechanisms, ontogeny, functions and phylogeny.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2022
    Article
  19. Article
  20. Review
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.

Maya Zhe WangDepartment of Neuroscience, Center for Magnetic Resonance Research, and Center for Neuroengineering University of Minnesota, Minneapolis, MN 55455, United States. Electronic address: wang8200@umn.edu.
Benjamin Y HaydenDepartment of Neuroscience, Center for Magnetic Resonance Research, and Center for Neuroengineering University of Minnesota, Minneapolis, MN 55455, United States.

Funding

Neural basis of reward-based choiceR01DA037229 · NIDA · UNIVERSITY OF ROCHESTER · PI HAYDEN, BENJAMIN Y · 2015 to 2019
$1.8M
NIDA NIH HHS R01 DA037229
6 · The paper itself

Abstract

Many non-human animals show exploratory behaviors. It remains unclear whether any possess human-like curiosity. We previously proposed three criteria for applying the term curiosity to animal behavior: (1) the subject is willing to sacrifice reward to obtain information, (2) the information provides no immediate instrumental or strategic benefit, and (3) the amount the subject is willing to pay depends systematically on the amount of information available. In previous work on information-seeking in animals, information generally predicts upcoming rewards, and animals' decisions may therefore be a byproduct of reinforcement processes. Here we get around this potential confound by taking advantage of macaques' ability to reason counterfactually (that is, about outcomes that could have occurred had the subject chosen differently). Specifically, macaques sacrificed fluid reward to obtain information about counterfactual outcomes. Moreover, their willingness to pay scaled with the information (Shannon entropy) offered by the counterfactual option. These results demonstrate the existence of human-like curiosity in non-human primates according to our criteria, which circumvent several confounds associated with less stringent criteria.

Indexed as

RewardAnimalsBehavior, AnimalDecision MakingEntropyExploratory BehaviorMacaca mulattaMaleCounterfactualCuriosityEntropyFictiveGamblingHypotheticalRisk

Identifiers

PMID30889493
PMCPMC8029581

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.