# “Approximate number system” training: A perceptual learning approach

> Research article (Attention Perception & Psychophysics, 2018) · cited 16× · AI/ML

**Wikidata**: [openalex:W2905282821](https://www.wikidata.org/wiki/openalex:W2905282821)  
**Source**: https://4ort.xyz/entity/approximate-number-system-training-a-perceptual-learning-approach