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Evidence That Pupil Size and Reactivity Are Determined More by Your Parents Than by Your Environment

29 Apr 2021

Abstract excerpt

Purpose: A classic twin study to evaluate the relative contributions of genetic and environmental factors to resting pupil size and reactivity. Methods: Pupillometry was performed on 326 female twins (mean age 64 years) from the TwinsUK Adult Twin Registry, assessing resting pupil diameter in darkness and increasing levels of ambient light, alongside dynamic pupillary characteristics. Maximum-likelihood...

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PMID: 34012416
DOI: 10.3389/fneur.2021.651755

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