DOI: 10.1101/483750Nov 30, 2018Paper

Using EEG to characterise drowsiness during short duration exposure to elevated indoor Carbon Dioxide concentrations

BioRxiv : the Preprint Server for Biology
Stephen Snowm.c. schraefel


Drowsiness which can affect work performance, is often elicited through self-reporting. This paper demonstrates the potential to use EEG to objectively quantify changes to drowsiness due to poor indoor air quality. Continuous EEG data was recorded from 23 treatment group participants subject to artificially raised indoor CO2 concentrations (average 2,700 ± 300 ppm) for approximately 10 minutes and 13 control group participants subject to the same protocol without additional CO2 (average 830 ± 70 ppm). EEG data were analysed for markers of drowsiness according neurophysiological methods at three stages of the experiment, Baseline, High CO2 and Post-Ventilation. Treatment group participants’ EEG data yielded a closer approximation to drowsiness than that of control group participants during the High CO­2 condition, despite no significant group differences in self-reported sleepiness. Future work is required to determine the persistence of these changes to EEG over longer exposures and to better isolate the specific effect of CO2 on drowsiness compared to other environmental or physiological factors.

Related Concepts

Biological Markers
Carbon Dioxide
Carbon Monoxide
Ventilation Tests
Research Study
Neurological System Process

Related Feeds

BioRxiv & MedRxiv Preprints

BioRxiv and MedRxiv are the preprint servers for biology and health sciences respectively, operated by Cold Spring Harbor Laboratory. Here are the latest preprint articles (which are not peer-reviewed) from BioRxiv and MedRxiv.

Related Papers

Journal of Clinical Neurophysiology : Official Publication of the American Electroencephalographic Society
J Santamaria, K H Chiappa
Indoor + Built Environment : the Journal of the International Society of the Built Environment
Xiaoyu Liu
Conference Proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society
Chamila DissanayakaDean Cvetkovic
© 2021 Meta ULC. All rights reserved