Pupil size reveals the perceptual quality and effortless nature of synesthesia.

Elife · 2026 · PMC13436957 · PMID 42548155

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highly significantno p-value reported

Overall, the findings by Strauch, Leenaars, and Rouw are highly significant for the field and likely to be impactful.

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Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.