Effect of Vibration Stimulus in Lowering Alertness Levels of Drivers
871249
11/08/1987
- Event
- Content
- The authors of the present paper report the measured physiological phenomena of a driver falling into the lowered alertness level and they evaluate the effectiveness of vibration stimulus added to a driver in the low alertness level as a means to keep the driver awake.From the survey test for 21 subjects, it was found the awakening whole-body vibration by the addition of which the alertness level of a driver could be heightened effectively, and it existed in the range between the amplitude of 1 to 15 mm and the frequency of 1 to 4 Hz.From the driving tests on road for 10 drivers under variable conditions of lack of sleep and much fatigue, the following results were obtained;
- (1) The characteristic behavior of a driver falling into a drowsy state was observed to be a typical zigzag driving in the lane with a lowering of the alertness level.
- (2) The lowering of the alertness level was closely related to the decrease of the horizontal eye-movement and corresponded to α-activation in the EEG.
- (3) it was proved experimentally that the exposure of a driver to the above mentioned vibration was effective to heighten the lowered alertness level.
- (4) This effect was maintained for 2 to 10 minutes after the vibrational stimulations for the subject drivers during severe drowsy conditions in this experiment.
- (1)
- Pages
- 10
- Citation
- Hattori, H., Matsuura, Y., Narumiya, K., Araki, K. et al., "Effect of Vibration Stimulus in Lowering Alertness Levels of Drivers," SAE Technical Paper 871249, 1987, https://doi.org/10.4271/871249.