# Nonsymbolic numerosity in sets with illusory-contours exploits a context-sensitive, but contrast-insensitive, visual boundary formation process

> Research article (Attention Perception & Psychophysics, 2021) · cited 11× · AI/ML

**Wikidata**: [openalex:W3205488594](https://www.wikidata.org/wiki/openalex:W3205488594)  
**Source**: https://4ort.xyz/entity/nonsymbolic-numerosity-in-sets-with-illusory-contours-exploits-a-context-sensitive-but-contrast-insensitive-visual-bound