Influence of Long-term Duration and Damping Shapes to Perceived Intensity for Vibrotactile Stimulation

概要

Haptic information has been shown to improve various experiences and accuracy of movement. However, the perceived intensity is known to be influenced by various parameters of the vibrotactile stimuli. Not only the amplitude but also the length of a short-term duration, the presence of a decaying factor, and the shape of the waveform affect the subjective intensity. In this paper, we investigated the influence of different damping shapes and duration on the perceived intensity. We prepared four different shaped waves as stimuli: a constant sinusoidal wave, an exponential decaying shaped wave, a linear decaying shaped wave, and a logarithmic decaying shaped wave, and six different long-term durations of up to 3 seconds for each waveform. Ten participants took part in the experiment to see how strong the intensity was perceived for each stimulus. The results indicated that the damping shape of the samples affects the perceived intensity in the order of a constant sinusoidal wave, a logarithmic decaying shaped wave, a linear decaying shaped wave, and an exponential decaying shaped wave. Also, the results suggest the representation of the time-averaged energy to the perceived intensity.

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DOI

関連プロジェクト

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  心理物理 · 2024–

  振動知覚メカニズム

  振幅は直接知覚される強度と一対一で対応しているわけではありません。持続時間・減衰・位相スペクトルといった時間的な要因が振動の知覚強度をどう変えるのかを一連の実験で調べています。

久原 拓巳 — 名古屋工業大学大学院 博士後期課程