Evidence map›Paper›PMID 40366689›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2025

Kernels of selfhood: GPT-4o shows humanlike patterns of cognitive dissonance moderated by free choice.

Steven A Lehr, Ketan S Saichandran, Eddie Harmon-Jones, Nykko Vitali, Mahzarin R Banaji

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing 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

6 citing papers in PubMed.

  1. Article
  2. Persuading large language models to comply with objectionable requests.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  3. Reply to Cummins et al.: GPT reveals cognitive dissonance that is both irrational and alarmingly humanlike.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  4. Cognitive dissonance in large language models is neither cognitive nor dissonant.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  5. Article
  6. Kernels of selfhood: GPT-4o shows humanlike patterns of cognitive dissonance moderated by free choice.Proceedings of the National Academy of Sciences of the United States of America · 2025
    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

5 authors.

Steven A LehrCangrade, Inc., Watertown, MA 02472.ORCID 0000-0002-8062-2103
Ketan S SaichandranDepartment of Computer Science, Boston University, Boston, MA 02215.
Eddie Harmon-JonesSchool of Psychology, The University of New South Wales, Sydney, NSW 2052, Australia.
Nykko VitaliDepartment of Psychology, Harvard University, Cambridge, MA 02138.
Mahzarin R BanajiDepartment of Psychology, Harvard University, Cambridge, MA 02138.ORCID 0000-0002-5941-7455

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Large language models (LLMs) show emergent patterns that mimic human cognition. We explore whether they also mirror other, less deliberative human psychological processes. Drawing upon classical theories of cognitive consistency, two preregistered studies tested whether GPT-4o changed its attitudes toward Vladimir Putin in the direction of a positive or negative essay it wrote about the Russian leader. Indeed, GPT displayed patterns of attitude change mimicking cognitive dissonance effects in humans. Even more remarkably, the degree of change increased sharply when the LLM was offered an illusion of choice about which essay (positive or negative) to write, suggesting that GPT-4o manifests a functional analog of humanlike selfhood. The exact mechanisms by which the model mimics human attitude change and self-referential processing remain to be understood.

Indexed as

Choice BehaviorCognitionCognitive DissonanceLanguageSelf ConceptAttitudeFemaleHumansMalecognitive consistencycognitive dissonancelarge language modelsmachine psychologyself-referential processing

Identifiers

PMID40366689
PMCPMC12107184

What OpenQuestion holds

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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.