# Pupillary Responses for Cognitive Load Measurement to Classify Difficulty Levels in an Educational Video Game: Empirical Study

> Research article (JMIR Serious Games, 2020) · cited 34× · AI/ML

**Wikidata**: [openalex:W3095278952](https://www.wikidata.org/wiki/openalex:W3095278952)  
**Source**: https://4ort.xyz/entity/pupillary-responses-for-cognitive-load-measurement-to-classify-difficulty-levels-in-an-educational-video-game-empirical-