Evidence map›Paper›PMID 27091981›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2016

What insects can tell us about the origins of consciousness.

Andrew B Barron, Colin Klein

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 73 papers.

0numbers the graph read from it
0cells of the map it votes in
73citing 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

73 citing papers in PubMed.

  1. Exploring emotional expression in invertebrates: mechanisms, functions and phylogeny.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2026
    Review
  2. Review
  3. Stress, Well-Being, and Reproduction in Wildlife.Advances in experimental medicine and biology · 2026
    Review
  4. Article
  5. Phenomenal interface theory: a model for basal consciousness.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025
    Article
  6. The exploration of consciousness in insects.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025
    Review
  7. Consciousness at sea.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025
    Review
  8. Article
  9. Review
  10. Article
  11. Defending and refining the BirchAnimal welfare (South Mimms, England) · 2025
    Review
  12. Review
  13. Article
  14. Article
  15. Grinding as a slaughter method for farmed black soldier fly (Animal welfare (South Mimms, England) · 2024
    Article
  16. Review
  17. Article
  18. Rethinking Vision and Action.Annual review of psychology · 2023
    Review
  19. Review
  20. Article

13 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

2 authors.

Andrew B BarronDepartment of Biological Sciences, Macquarie University, Sydney, NSW 2109, Australia; andrew.barron@mq.edu.au.
Colin KleinDepartment of Philosophy and Australian Research Council Centre of Excellence in Cognition and its Disorders, Macquarie University, Sydney, NSW 2109, Australia.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

How, why, and when consciousness evolved remain hotly debated topics. Addressing these issues requires considering the distribution of consciousness across the animal phylogenetic tree. Here we propose that at least one invertebrate clade, the insects, has a capacity for the most basic aspect of consciousness: subjective experience. In vertebrates the capacity for subjective experience is supported by integrated structures in the midbrain that create a neural simulation of the state of the mobile animal in space. This integrated and egocentric representation of the world from the animal's perspective is sufficient for subjective experience. Structures in the insect brain perform analogous functions. Therefore, we argue the insect brain also supports a capacity for subjective experience. In both vertebrates and insects this form of behavioral control system evolved as an efficient solution to basic problems of sensory reafference and true navigation. The brain structures that support subjective experience in vertebrates and insects are very different from each other, but in both cases they are basal to each clade. Hence we propose the origins of subjective experience can be traced to the Cambrian.

Indexed as

ConsciousnessAnimalsBehavior, AnimalInsectacentral complexprimary consciousnesssubjective experiencevertebrate midbrain

Identifiers

PMID27091981
PMCPMC4983823

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.