Takumi Kuhara

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Psychophysics · 2024–

Vibration Perceptual Mechanisms

Amplitude is not directly linked to intensity. A series of studies on how temporal factors such as, duration, damping and phase spectra change how strong a vibration feels.

Designers routinely set the 'strength' of a haptic effect with a single amplitude number. Perceptually that is wrong: the same peak amplitude can feel dramatically different depending on how long the vibration lasts and how it decays.

This ongoing series measures those effects one parameter at a time — long-term duration, damping shape, and most recently the phase spectrum of noise-like signals — with the goal of a practical perceptual intensity model that content authors can actually use.

DOI DOI (SII 2025)

Related papers & talks

Takumi Kuhara — Doctoral Student, Nagoya Institute of Technology

Vibration Perceptual Mechanisms
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