Evidence map›Paper›PMID 24741016›Full record

ArticleProceedings. Biological sciences2014

Investment in higher order central processing regions is not constrained by brain size in social insects.

Mario L Muscedere, Wulfila Gronenberg, Corrie S Moreau, James F A Traniello

Abstract read
In one paragraph

Article in Proceedings. Biological sciences, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing 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

9 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Behavioral performance and division of labor influence brain mosaicism in the leafcutter ant Atta cephalotes.Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology · 2022
    Article
  5. AInsects · 2021
    Review
  6. Brain evolution in social insects: advocating for the comparative approach.Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology · 2019
    Review
  7. Subtle changes in the landmark panorama disrupt visual navigation in a nocturnal bull ant.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2017
    Article
  8. Article
  9. 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

4 authors.

Mario L MuscedereUndergraduate Program in Neuroscience, Boston University, , 2 Cummington Mall, Boston, MA 02215, USA, Department of Neuroscience, University of Arizona, , 611 Gould-Simpson Science Building, Tucson, AZ 85721, USA, Department of Science and Education, Field Museum of Natural History, , 1400 South Lake Shore Drive, Chicago, IL 60605, USA, Department of Biology, Boston University, , 5 Cummington Mall, Boston, MA 02215, USA.
Wulfila Gronenberg
Corrie S Moreau
James F A Traniello

Funding

Howard Hughes Medical Institute
6 · The paper itself

Abstract

The extent to which size constrains the evolution of brain organization and the genesis of complex behaviour is a central, unanswered question in evolutionary neuroscience. Advanced cognition has long been linked to the expansion of specific brain compartments, such as the neocortex in vertebrates and the mushroom bodies in insects. Scaling constraints that limit the size of these brain regions in small animals may therefore be particularly significant to behavioural evolution. Recent findings from studies of paper wasps suggest miniaturization constrains the size of central sensory processing brain centres (mushroom body calyces) in favour of peripheral, sensory input centres (antennal and optic lobes). We tested the generality of this hypothesis in diverse eusocial hymenopteran species (ants, bees and wasps) exhibiting striking variation in body size and thus brain size. Combining multiple neuroanatomical datasets from these three taxa, we found no universal size constraint on brain organization within or among species. In fact, small-bodied ants with miniscule brains had mushroom body calyces proportionally as large as or larger than those of wasps and bees with brains orders of magnitude larger. Our comparative analyses suggest that brain organization in ants is shaped more by natural selection imposed by visual demands than intrinsic design limitations.

Indexed as

Biological EvolutionAnimalsAntsBeesBody SizeBrainCognitionOrgan SizeWaspsallometryantsmushroom bodies

Identifiers

PMID24741016
PMCPMC4043091

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.