Digital biomarker of mental fatigue.

Vincent Wen-Sheng Tseng Nachiappan ValliappanVenky RamachandranTanzeem ChoudhuryVidhya Navalpakkam

Published in: NPJ digital medicine (2021)

Mental fatigue is an important aspect of alertness and wellbeing. Existing fatigue tests are subjective and/or time-consuming. Here, we show that smartphone-based gaze is significantly impaired with mental fatigue, and tracks the onset and progression of fatigue. A simple model predicts mental fatigue reliably using just a few minutes of gaze data. These results suggest that smartphone-based gaze could provide a scalable, digital biomarker of mental fatigue.

Keyphrases

sleep quality
mental health
physical activity
machine learning
electronic health record
big data