Eyes on Attention: AI-Based Webcam Assessment of Sustained Attention

This study examined the feasibility of an artificial intelligence system using webcam eye tracking to estimate sustained attention performance. In a controlled laboratory study, 129 participants (mean age: 25.98 ± 2.07 years; 83.7% female) completed the AX Continuous Performance Task. Performance was operationalized as a reciprocal-log index of correct-response reaction time, with higher values indicating faster responses. Six visual scanning features were captured, and five composite models were compared: one literature-based and four derived from experimental data. All showed significant in-