Evidence map›Paper›PMID 31774809›Full record

ArticlePLoS biology2019

All or nothing: No half-Merge and the evolution of syntax.

Robert C Berwick, Noam Chomsky

Abstract readComment
In one paragraph

Article in PLoS biology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing 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

11 citing papers in PubMed.

  1. Article
  2. Article
  3. Linguistic capacity was present in theFrontiers in psychology · 2025
    Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Sociality predicts orangutan vocal phenotype.Nature ecology & evolution · 2022
    Article
  10. A Connectomic Hypothesis for the Hominization of the Brain.Cerebral cortex (New York, N.Y. : 1991) · 2021
    Article
  11. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

2 authors.

Robert C BerwickMassachusetts Institute of Technology, Cambridge, Massachusetts, United States of America.ORCID 0000-0002-1061-1871
Noam ChomskyUniversity of Arizona, Tucson, Arizona, United States of America.ORCID 0000-0002-3632-2461

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In their Essay on the evolution of human language, Martins and Boeckx seek to refute what they call the "half-Merge fallacy"-the conclusion that the most elementary computational operation for human language syntax, binary set formation, or "Merge," evolved in a single step. We show that their argument collapses. It is based on a serious misunderstanding of binary set formation as well as formal language theory. Furthermore, their specific evolutionary scenario counterproposal for a "two-step" evolution of Merge does not work. Although we agree with their Essay on several points, including that there must have been many steps in the evolution of human language and the importance of understanding how language and language syntax are implemented in the brain, we disagree that there is any justification, empirical or conceptual, for the decomposition of binary set formation into separate steps.

Indexed as

Biological EvolutionLanguageBrainComprehensionHumans

Identifiers

PMID31774809
PMCPMC6880979

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

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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.