# Prediction of state anxiety by machine learning applied to photoplethysmography data

> Research article (PeerJ, 2021) · cited 42× · AI/ML

**Wikidata**: [openalex:W3125295053](https://www.wikidata.org/wiki/openalex:W3125295053)  
**Source**: https://4ort.xyz/entity/prediction-of-state-anxiety-by-machine-learning-applied-to-photoplethysmography-data