# @gravitonomy on Instagram

- **Type:** Image
- **Original URL:** https://www.instagram.com/p/DUcePdaEVMb
- **Gondola URL:** https://gondola.cc/posts/61873933-gravitonomy-instagram
- **Thumbnail:** https://img.gondola.cc/tr:w-,h-,fo-auto/postThumbnails/a594ff2308.jpg
- **Posted:** 2026-02-07T05:25:37.000+00:00
- **Account Owner:** Gravitonomy (@gravitonomy) — https://gondola.cc/gravitonomy

## Caption

When you look at someone you feel strong emotions for, like love or intense dislike, your pupils can widen because emotional arousal activates the autonomic nervous system. This response reflects sympathetic nervous system activity, which also increases heart rate and attention. Scientific studies show that pupil size increases during emotionally charged stimuli, both positive and negative, and correlates with measures of arousal linked to brain systems like the locus coeruleus-norepinephrine pathway.

Source:
Fong, Joss. Eye-Opener: Why Do Pupils Dilate in Response to Emotional States? Scientific American. https://www.scientificamerican.com/article/eye-opener-why-do-pupils-dialate/

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#autonomicnervoussystem #science #neuroscience researc

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## Tags

neuroscience, science, autonomicnervoussystem

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