Self-adjustments may account for the contradictory correlations between HRV and motion-sickness severity

Chun Ling Lin, Tzyy Ping Jung, Shang Wen Chuang, Jeng-Ren Duann, Chin Teng Lin*, Tzai-Wen Chiu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

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.

Original languageEnglish
Pages (from-to)70-80
Number of pages11
JournalInternational Journal of Psychophysiology
Volume87
Issue number1
DOIs
StatePublished - 1 Jan 2013

Keywords

  • Electrocardiogram (ECG)
  • Heart rate variability (HRV)
  • LF/HF ratio
  • Linear regression
  • Motion sickness (MS)
  • Normalized high frequency (NHF)
  • Normalized low frequency (NLF)

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