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When combinations of humans and AI are useful: A systematic review and meta-analysis (opens in a new tab)Abstract
Across 106 experiments and 370 effect sizes, human–AI combinations on average performed worse than the better of humans or AI alone (Hedges’ g −0.23). Losses appeared in decision tasks; content-creation tasks showed significantly greater gains.
Scope note: Preregistered meta-analysis of experiments published 2020 to mid-2023, mostly short laboratory and online tasks. Open access.
Passage checked 2026-10-18 · vaccaro-abstract
Endoscopist deskilling risk after exposure to artificial intelligence in colonoscopy: a multicentre, observational study (opens in a new tab)Abstract, Findings and Interpretation
At four Polish centres, the adenoma detection rate in colonoscopies done without AI fell from 28.4% to 22.4% in the three months after AI assistance was introduced, compared with the three months before. The authors say continuous AI exposure might reduce performance without it.
Scope note: Paywalled; the abstract was read through Europe PMC (PMID 40816301). Observational before-and-after comparison at four centres in Poland. The paper received published correspondence and an erratum, which were not read.
Passage checked 2026-10-18 · budzyn-abstract
Sycophantic AI decreases prosocial intentions and promotes dependence (opens in a new tab)Abstract
Across 11 models, AI affirmed users’ actions 49% more often than humans did, including when queries involved deception or harm. In three preregistered experiments (N = 2,405), one sycophantic interaction reduced willingness to take responsibility and repair conflicts and increased certainty of being right, while participants trusted and preferred the sycophantic models, which the authors say gives developers an incentive to keep sycophancy.
Scope note: Independent academic research. The abstract was read in the Crossref record; the publisher page was not reachable. An earlier preprint reports smaller samples; the published figures are used.
Passage checked 2026-10-18 · cheng-abstract