Evidence map›Paper›PMID 33653135›Full record

ArticleProceedings. Biological sciences2021

Cuttlefish exert self-control in a delay of gratification task.

Alexandra K Schnell, Markus Boeckle, Micaela Rivera, Nicola S Clayton, Roger T Hanlon

Abstract read
In one paragraph

Article in Proceedings. Biological sciences, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing 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

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

  1. Cephalopod Behavior: From Neural Plasticity to Consciousness.Frontiers in systems neuroscience · 2021
    Pooled it
  2. Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. eLife · 2025
    Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. The Inner Lives of Cephalopods.Integrative and comparative biology · 2023
    Article
  17. Invisible Invertebrates: The Welfare of Invertebrates in Public Aquaria.Animals : an open access journal from MDPI · 2023
    Article
  18. Article
  19. Article
  20. Thinking about possibilities: mechanisms, ontogeny, functions and phylogeny.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2022
    Article
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

5 authors.

Alexandra K SchnellDepartment of Psychology, University of Cambridge, Cambridge, UK.
Markus BoeckleDepartment of Psychology, University of Cambridge, Cambridge, UK.
Micaela RiveraDepartment of Psychology, Ripon College, Ripon, WI 54971, USA.
Nicola S ClaytonDepartment of Psychology, University of Cambridge, Cambridge, UK.
Roger T HanlonEugene Bell Center, Marine Biological Laboratory, Woods Hole, MA 02543, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The ability to exert self-control varies within and across taxa. Some species can exert self-control for several seconds whereas others, such as large-brained vertebrates, can tolerate delays of up to several minutes. Advanced self-control has been linked to better performance in cognitive tasks and has been hypothesized to evolve in response to specific socio-ecological pressures. These pressures are difficult to uncouple because previously studied species face similar socio-ecological challenges. Here, we investigate self-control and learning performance in cuttlefish, an invertebrate that is thought to have evolved under partially different pressures to previously studied vertebrates. To test self-control, cuttlefish were presented with a delay maintenance task, which measures an individual's ability to forgo immediate gratification and sustain a delay for a better but delayed reward. Cuttlefish maintained delay durations for up to 50-130 s. To test learning performance, we used a reversal-learning task, whereby cuttlefish were required to learn to associate the reward with one of two stimuli and then subsequently learn to associate the reward with the alternative stimulus. Cuttlefish that delayed gratification for longer had better learning performance. Our results demonstrate that cuttlefish can tolerate delays to obtain food of higher quality comparable to that of some large-brained vertebrates.

Indexed as

DecapodiformesSelf-ControlAnimalsLearningPleasureRewardcephalopod cognitioncognitive evolutiondelay maintenancediscrimination-reversalinter-temporal choice tasklearning performance

Identifiers

PMID33653135
PMCPMC7935110

What OpenQuestion holds

Textmetadata
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.