@article{9410a2cd2bca414aa14b868e2d97495b,
title = "Self-adjustments may account for the contradictory correlations between HRV and motion-sickness severity",
abstract = "This study investigates the relationship between heart rate variability (HRV) and the level of motion sickness (MS) induced by simulated tunnel driving. The HRV indices, normalized low frequency (NLF, 0.04-0.15 Hz), normalized high frequency (NHF, 0.15-0.4 Hz), and LF/HF ratio were correlated with the subjectively and continuously rated MS levels of 20 participants. The experimental results showed that for 13 of the subjects, the MS levels positively correlated with the NLF and the LF/HF ratio and negatively correlated with the NHF. The remaining seven subjects had negative correlations between the MS levels and the NLF and the LF/HF ratio and a positive correlation between the MS levels and the NHF. To clarify this contradiction, this study also inspected the effects of subjects' self-adjustments on the correlations between the MS levels and the HRV indices and showed that the variations in the relationship might be attributed to the subjects' self-adjustments, which they used to relieve the discomfort of MS.",
keywords = "Electrocardiogram (ECG), Heart rate variability (HRV), LF/HF ratio, Linear regression, Motion sickness (MS), Normalized high frequency (NHF), Normalized low frequency (NLF)",
author = "Lin, {Chun Ling} and Jung, {Tzyy Ping} and Chuang, {Shang Wen} and Duann, {Jeng Ren} and Lin, {Chin Teng} and Chiu, {Tzai Wen}",
note = "Funding Information: This work was supported, in part, by the Aiming for the Top University Plan of National Chiao Tung University, the Ministry of Education, and Taiwan (under Grant number 101W963 ). Further support came from the UST-UCSD International Center of Excellence in Advanced Bio-engineering , which is sponsored by the Taiwan National Science Council I-RiCE program under grant number NSC-101-2911-I-009-101 and the NSoC program under grant number NSC-100-2220-E-009-016 100N462 . This research was also sponsored, in part, by the U.S. Army Research Office (under contract number W911NF-09-1-0510 ) of the Army Research Laboratory (under contract number W911NF-10-2-0022 ). The views and conclusions contained in this document are those of the authors and are not representative of the official policies, either expressed or implied, of the U.S. Army or the U.S. government. The U.S. government is authorized to reproduce and distribute reprints for government purposes notwithstanding any copyright notation herein.",
year = "2013",
month = jan,
doi = "10.1016/j.ijpsycho.2012.11.003",
language = "???core.languages.en_GB???",
volume = "87",
pages = "70--80",
journal = "International Journal of Psychophysiology",
issn = "0167-8760",
number = "1",
}