Effects of Subjective Visual Fatigue on Brain Function during Luminescent Sentence Reading Task

Tomohiro Nishikawa, Keiichi Watanuki, Kazunori Kaede, Keiichi Muramatsu, Naoya Mashiko

研究成果: Conference contribution

抄録

This study aims to examine the relationship between visual fatigue and brain function in the prefrontal cortex (PFC) during a luminescent sentence reading task. We conducted a 10 min luminescent sentence reading task in a dark room. Twelve healthy young volunteers participated in this study and performed six repeated experiments. The time-course of oxyhemoglobin (oxy-Hb) in the PFC was measured using a 22-channel wearable near-infrared spectroscope. Subjective visual fatigue and sleepiness were assessed using the ' Jikaku-sho shirabe' questionnaire. In addition, the critical flicker-fusion frequency (CFF) was measured as the objective index of fatigue. CFF could be used as the objective support for sleepiness, because Delta CFF and the feeling of drowsiness, Delta text{I}, were negatively correlated ({r}=-0.24, {p}<0.05). In our analysis, oxy-Hb in the medial PFC (mPFC) exhibited a significant negative correlation with the feeling of eyestrain, Delta text{V}({r}=-0.37, {p}<0.01), but not with other fatigue indexes. It was suggested that the development of subjective visual fatigue is related to the deactivation conditions in the mPFC. This study played an important role as the control for the evaluation of objective visual fatigue during various colored LED luminescent sentence reading tasks.

本文言語English
ホスト出版物のタイトルProceedings of the 2020 IEEE/SICE International Symposium on System Integration, SII 2020
出版社Institute of Electrical and Electronics Engineers Inc.
ページ390-394
ページ数5
ISBN(電子版)9781728166674
DOI
出版ステータスPublished - 2020 1
外部発表はい
イベント2020 IEEE/SICE International Symposium on System Integration, SII 2020 - Honolulu, United States
継続期間: 2020 1 122020 1 15

出版物シリーズ

名前Proceedings of the 2020 IEEE/SICE International Symposium on System Integration, SII 2020

Conference

Conference2020 IEEE/SICE International Symposium on System Integration, SII 2020
CountryUnited States
CityHonolulu
Period20/1/1220/1/15

ASJC Scopus subject areas

  • Artificial Intelligence
  • Computer Science Applications
  • Biomedical Engineering
  • Control and Systems Engineering
  • Safety, Risk, Reliability and Quality
  • Control and Optimization
  • Instrumentation

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