Pupil size reveals the perceptual quality and effortless nature of synesthesia

Abstract excerpt

Synesthesia describes cross-over processes that can generate ’extra’ conscious percepts, such as seeing additional color when reading numbers. While existing research focuses on the mechanisms and effects of synesthetic associations, it often overlooks its most distinctive feature: unique sensory phenomenology. Here, we introduce pupillometry as an objective physiological measure of synesthetic color phenomenology...

Topics

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• Auditory Perception
• Brain
• Individuality
• Learning
• Memory
• Models, Psychological
• Semantics
• Visual Perception

Identifiers and source

Literature Corpus work

61162556-57a2-5283-a705-9c2e2c18f615

DOI

10.1101/2025.11.24.690102