Thresholds of Haptic and Auditory Perception in Midair Facial Stimulation

2019 IEEE International Symposium on Haptic, Audio and Visual Environments and Games (HAVE) Pub Date : 2019-10-01 DOI:10.1109/HAVE.2019.8920999

Saya Mizutani, M. Fujiwara, Yasutoshi Makino, H. Shinoda

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引用次数: 7

Abstract

In this study, we evaluated the perceptual threshold of airborne ultrasound focused on a facial skin. The ultrasound was applied with amplitude and lateral modulation, and the tactile and bone-conduction thresholds for them were obtained. The results showed that the tactile stimulation with lateral modulation was perceived stably, while the bone-conduction sound was perceivable only at sweet spots in the experimental setup. Even at the sweet spots, the tactile and bone-conduction thresholds were comparable. A potential application of this study is a non-contact personal warning system, where a focused ultrasound irradiates the face of a pedestrian walking at the edge of a train-station platform, for example. Considering this application, we also conducted experiments on the reaction time for the highest intensity by the used ultrasound device. The results showed that the average reaction time to the facial stimulus was 0.48 s. Though it became longer to 0.74 s when the participants were under a 2-back task, the simulation was noticed in all the cases of the experiment.

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空中面部刺激的触觉和听觉阈值

在这项研究中，我们评估了空气超声聚焦面部皮肤的感知阈值。对超声进行幅度调制和横向调制，得到触觉阈值和骨传导阈值。实验结果表明，横向调制的触觉刺激具有稳定的感知能力，而骨传导声仅在甜蜜点被感知。即使在最佳点，触觉阈值和骨传导阈值也是相当的。这项研究的一个潜在应用是一种非接触式个人警告系统，例如，在该系统中，聚焦超声照射在火车站站台边缘行走的行人的面部。考虑到这一应用，我们还对所使用的超声设备对最高强度的反应时间进行了实验。结果表明，被试对面部刺激的平均反应时间为0.48 s。虽然当参与者在两回任务下时，它变得更长至0.74秒，但在所有实验情况下都注意到模拟。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

2019 IEEE International Symposium on Haptic, Audio and Visual Environments and Games (HAVE)

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