# Differences in facial expressions during positive anticipation and frustration in dogs awaiting a reward

> Research article (Scientific Reports, 2019) · cited 102× · AI/ML

**Wikidata**: [openalex:W2995885361](https://www.wikidata.org/wiki/openalex:W2995885361)  
**Source**: https://4ort.xyz/entity/differences-in-facial-expressions-during-positive-anticipation-and-frustration-in-dogs-awaiting-a-reward