Increased Baseline Pupil Size Linked to Uncertainty Avoidance in Decision Making.

Eur J Neurosci · 2026 · PMC12848648 · PMID 41603188

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hedged sentence

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closest p · 0.0× alpha

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boldest claim

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highly significantp ~ 10 − 12actually significant

To test this more formally, we assessed baseline pupil size in our a priori baseline time window −1 to 0 s and found a highly significant difference in pupil size preceding certain vs. uncertain choices ( β C > 0 , t = 6.9 , p ~ 10 − 12 , CI = 0.03 , 0.05 ) (Figure 2A , inset bar plots).

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