Evidence map›Paper›PMID 34556580›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2021

What we talk about when we talk about colors.

Colin R Twomey, Gareth Roberts, David H Brainard, Joshua B Plotkin

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing 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

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

  1. Pooled it
  2. Article
  3. Human and primate categorical understanding of color.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  4. Article
  5. History constrains the evolution of efficient color naming, enabling historical inference.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  6. The color communication game.Scientific reports · 2023
    Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Color sorting and color term evolution.Color research and application
    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.

Colin R TwomeyMindCORE, University of Pennsylvania, Philadelphia, PA 19104; crtwomey@sas.upenn.edu jplotkin@sas.upenn.edu.ORCID 0000-0002-7368-2861
Gareth RobertsMindCORE, University of Pennsylvania, Philadelphia, PA 19104.ORCID 0000-0002-6662-6829
David H BrainardMindCORE, University of Pennsylvania, Philadelphia, PA 19104.ORCID 0000-0001-9827-543X
Joshua B PlotkinMindCORE, University of Pennsylvania, Philadelphia, PA 19104; crtwomey@sas.upenn.edu jplotkin@sas.upenn.edu.ORCID 0000-0003-2349-6304

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Names for colors vary widely across languages, but color categories are remarkably consistent. Shared mechanisms of color perception help explain consistent partitions of visible light into discrete color vocabularies. But the mappings from colors to words are not identical across languages, which may reflect communicative needs-how often speakers must refer to objects of different color. Here we quantify the communicative needs of colors in 130 different languages by developing an inference algorithm for this problem. We find that communicative needs are not uniform: Some regions of color space exhibit 30-fold greater demand for communication than other regions. The regions of greatest demand correlate with the colors of salient objects, including ripe fruits in primate diets. Our analysis also reveals a hidden diversity in the communicative needs of colors across different languages, which is partly explained by differences in geographic location and the local biogeography of linguistic communities. Accounting for language-specific, nonuniform communicative needs improves predictions for how a language maps colors to words, and how these mappings vary across languages. Our account closes an important gap in the compression theory of color naming, while opening directions to study cross-cultural variation in the need to communicate different colors and its impact on the cultural evolution of color categories.

Indexed as

Choice BehaviorColorColor PerceptionCommunicationCultural EvolutionDiscrimination, PsychologicalLanguageCross-Cultural ComparisonHumanscollective behaviorcolor categoriescultural evolutioninformation theorylanguage evolution

Identifiers

PMID34556580
PMCPMC8488626

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.