ArticleeNeuro2023
Pupil Size Is Sensitive to Low-Level Stimulus Features, Independent of Arousal-Related Modulation.
Article in eNeuro, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
5 citing papers in PubMed.
- Emotional valence through pupil: Machine learning classification under controlled visual complexity and emotional arousal in young adults.Physiological reports · 2026Article
- Estimation method of attentional object using spatial frequency selectivity in pupillary response.PloS one · 2026Article
- Benefits of Dual-Tasking on Implicit Sensorimotor Adaptation.The European journal of neuroscience · 2026Article
- Heterogeneous Effects of Cognitive Arousal on the Contrast Response in Human Visual Cortex.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025Article
- Frontotemporal network contribution to occluded face processing.Proceedings of the National Academy of Sciences of the United States of America · 2024Article
Corrections and comments
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Authors and funding
4 authors.
Funding
Abstract
Similar to a camera aperture, pupil size adjusts to the surrounding luminance. Unlike a camera, pupil size is additionally modulated both by stimulus properties and by cognitive processes, including attention and arousal, though the interdependence of these factors is unclear. We hypothesized that different stimulus properties interact to jointly modulate pupil size while remaining independent from the impact of arousal. We measured pupil responses from human observers to equiluminant stimuli during a demanding rapid serial visual presentation (RSVP) task at fixation and tested how response amplitude depends on contrast, spatial frequency, and reward level. We found that under constant luminance, unattended stimuli evoke responses that are separable from changes caused by general arousal or attention. We further uncovered a double-dissociation between task-related responses and stimulus-evoked responses, suggesting that different sources of pupil size modulation are independent of one another. Our results shed light on neural pathways underlying pupillary response.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.