A Drowsiness Reduction Strategy Utilizing Visual Stimulation With Different Colors of Light: An fNIRS Study
| Autor: | Myung Yung Jeong, Arbab Akbar, Zeshan Shoaib, Jun Hyun Kim, Muhammad Ahmad Kamran |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
medicine.medical_specialty
General Computer Science medicine.diagnostic_test business.industry General Engineering Healthy subjects drowsiness Stimulation Deoxy hemoglobin Audiology Electroencephalography sleep deprivation TK1-9971 Heart rate heart rate medicine General Materials Science and eye closure Electrical engineering. Electronics. Nuclear engineering colored light exposure Eye closure business Functional near-infrared spectroscopy Colored light Blue light |
| Zdroj: | IEEE Access, Vol 9, Pp 105817-105830 (2021) |
| ISSN: | 2169-3536 |
| Popis: | Drowsiness during driving is a severe problem that must be addressed to improve road safety. Numerous counter-measures have been proposed to resolve this issue like adaptive environmental settings (temperature, sound, and light). The objective of this study was to accurately predict the effects of exposure to different colors of light on human drowsiness by using functional near-infrared spectroscopy and other physical measurements (heart rate and eye closure). We targeted two regions of the brain (visual and pre-frontal cortices). Twenty-three healthy subjects were investigated to evaluate all variables related to the awakening state, and twenty-one healthy subjects were also examined in the drowsy state evaluation. Eventually, the ten most suitable subjects were exposed to red, green, and blue lights under drowsy conditions, according to the experimental paradigm. Dim light was maintained in the experimental premises before and after colored light exposure to limit the results to those produced only in response to the desired stimuli. Eye closure, heart rate, and changes in oxy and deoxy hemoglobin concentrations were measured to characterize the condition (awake/drowsy) of the subject. A support vector machine classifier was used to identify the classification accuracy of awake and drowsy states. In conclusion, exposure to blue light triggered the activation of oxy hemoglobin in targeted brain regions; however, deoxy hemoglobin was not significantly affected by exposure to any of the colored lights. Noticeably, our study revealed that blue light exposure is more effective at reducing drowsiness than exposure to red and green lights. |
| Databáze: | OpenAIRE |
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