| Title |
Fatigue Estimation using Pupil Light Reflex |
| DOI |
https://doi.org/10.5370/KIEE.2022.71.11.1686 |
| Keywords |
ANS(Autonomic Nervous System); PNS(Parasympathetic nervous System); SNS(Sympathetic nervous System); PLR(Pupil light reflex reflex); NfR(Need for Recovery score); daily life fatigue |
| Abstract |
Although fatigue has been experienced more than once in a lifetime, the definition itself is ambiguous and is determined by various factors. Many researchers have studied objective and quantitative fatigue analysis methods, but standard measurement methods are still not established. In this study, we estimated fatigue using pupil light reflex providing information about the activity of sympathetic and parasympathetic nervous system among vital signs. We induced artificially fatigue through arithmetic and running, and subjective fatigue was compared with the questionnaire index at every point in time. As the results, BPD(basal pupil diameter), MCV(Maximum constriction velocity), and ACA(absolute constriction amplitude) showed the possibility of being used as factors reflecting fatigue. |