Evidence map›Paper›PMID 37419890›Full record

ArticleNature communications2023

Rapid expansion and visual specialisation of learning and memory centres in the brains of Heliconiini butterflies.

Antoine Couto, Fletcher J Young, Daniele Atzeni, Simon Marty, Lina Melo-Flórez, Laura Hebberecht, Monica Monllor, Chris Neal, Francesco Cicconardi, W Owen McMillan and 1 more

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
7.0field-weighted citation impact, top 2% of its field
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, 47 citations in OpenAlex.

  1. Evolution of compound eye cell types shapes visual behaviors acrossbioRxiv : the preprint server for biology · 2026
    Article
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  5. Emerging tools to advance neuroethology in butterflies and moths.Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology · 2026
    Review
  6. The diversity of lepidopteran spatial orientation strategies - neuronal mechanisms and emerging challenges in a changing world.Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology · 2026
    Review
  7. The evolution of lepidopteran brain morphology.Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology · 2026
    Article
  8. Article
  9. Modular presynaptic assemblages scale to postsynaptic partner number.bioRxiv : the preprint server for biology · 2026
    Article
  10. Article
  11. Article
  12. Modality-specific long-term memory enhancement inPhilosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025
    Article
  13. Evolution of diverse (and advanced) cognitive abilities through adaptive fine-tuning of learning and chunking mechanisms.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025
    Article
  14. Article
  15. Article
  16. Article
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  19. Review
  20. 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

11 authors at 5 institutions in 4 countries.

Antoine Couto *School of Biological Sciences, University of Bristol, Bristol, UK.
Fletcher J Young *School of Biological Sciences, University of Bristol, Bristol, UK.
Daniele AtzeniSchool of Biological Sciences, University of Bristol, Bristol, UK.
Simon MartyDepartment of Zoology, University of Cambridge, Cambridge, UK.
Lina Melo-FlórezSmithsonian Tropical Research Institute, Gamboa, Panama.ORCID 0000-0002-4624-0224
Laura HebberechtSchool of Biological Sciences, University of Bristol, Bristol, UK.
Monica MonllorSmithsonian Tropical Research Institute, Gamboa, Panama.
Chris NealWolfson Bioimaging Facility, University of Bristol, Bristol, UK.
Francesco CicconardiSchool of Biological Sciences, University of Bristol, Bristol, UK.
W Owen McMillanSmithsonian Tropical Research Institute, Gamboa, Panama.
Stephen H MontgomerySchool of Biological Sciences, University of Bristol, Bristol, UK. s.montgomery@bristol.ac.uk.ORCID 0000-0002-5474-5695
Smithsonian Tropical Research Institute · PAUniversity of Bristol · GBUniversité Claude Bernard Lyon 1 · FRUniversity of Cambridge · GBUniversity of Trieste · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Changes in the abundance and diversity of neural cell types, and their connectivity, shape brain composition and provide the substrate for behavioral evolution. Although investment in sensory brain regions is understood to be largely driven by the relative ecological importance of particular sensory modalities, how selective pressures impact the elaboration of integrative brain centers has been more difficult to pinpoint. Here, we provide evidence of extensive, mosaic expansion of an integration brain center among closely related species, which is not explained by changes in sites of primary sensory input. By building new datasets of neural traits among a tribe of diverse Neotropical butterflies, the Heliconiini, we detected several major evolutionary expansions of the mushroom bodies, central brain structures pivotal for insect learning and memory. The genus Heliconius, which exhibits a unique dietary innovation, pollen-feeding, and derived foraging behaviors reliant on spatial memory, shows the most extreme enlargement. This expansion is primarily associated with increased visual processing areas and coincides with increased precision of visual processing, and enhanced long term memory. These results demonstrate that selection for behavioral innovation and enhanced cognitive ability occurred through expansion and localized specialization in integrative brain centers.

Indexed as

ButterfliesAnimalsBrainInsectaLearningMushroom Bodies

Identifiers

PMID37419890
PMCPMC10328955
OpenAlexW4383556161

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.