Digital biomarker of mental fatigue

Abstract 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 men...

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Bibliographic Details
Published in:npj Digital Medicine
Main Authors: Vincent Wen-Sheng Tseng, Nachiappan Valliappan, Venky Ramachandran, Tanzeem Choudhury, Vidhya Navalpakkam
Format: Article
Language:English
Published: Nature Portfolio 2021-03-01
Online Access:https://doi.org/10.1038/s41746-021-00415-6
Description
Summary:Abstract 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.
ISSN:2398-6352

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