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Exploring the Effects of Emotional Sensory Stimuli on Modulating Driver Fatigue via EEG-based Spatial-Temporal
Fo Hu1,2, Qinxu Zheng1, Junlong Xiong3
1Life & Health Innovation and Entrepreneurship Center, Institute of Wenzhou, Zhejiang University, Wenzhou 325036, P. R. China.
International Journal of Neural Systems
|January 28, 2026
Summary
Emotional Sensory Stimuli (ESS), like mint odor and music, effectively reduce driver fatigue. This study found optimal olfactory-auditory mixes restore fatigue levels significantly, highlighting ESS as a promising tool for traffic safety.
Area of Science:
- Neuroscience
- Traffic Safety
- Sensory Stimulation
Background:
- Driver fatigue poses significant risks to traffic safety.
- Current methods for alleviating driver fatigue are limited.
- Implicit emotion modulation using sensory stimuli is underexplored for driver fatigue.
Purpose of the Study:
- To investigate the effectiveness of Emotional Sensory Stimuli (ESS) in alleviating driver fatigue.
- To analyze the neural mechanisms underlying fatigue modulation using Electroencephalogram (EEG) signals.
- To quantify the impact of ESS on driver fatigue recovery.
Main Methods:
- Designed a real-world experiment using ESS (olfactory and olfactory-auditory) to record EEG signals.
- Analyzed brain activation patterns and functional networks to understand neural responses.
- Utilized a fatigue similarity measure to quantify recovery levels.
Main Results:
- Mint odor combined with High-Arousal-Low-Valence (HALV) music showed the best fatigue modulation, outperforming single olfactory stimuli.
- Effective fatigue modulation correlated with synchronized activity in the frontal and parietal brain lobes.
- Optimal olfactory-auditory stimuli restored driver fatigue to a level experienced 58-60 minutes prior.
Conclusions:
- ESS, particularly combined olfactory-auditory stimuli, is a viable method for implicit driver fatigue modulation.
- Dynamic brain functional connectivity patterns provide insights into fatigue modulation mechanisms.
- ESS demonstrates potential as a reliable tool to enhance driver alertness and safety.
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