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Whole-body haptics · 2022–

SOVS — Single Overlapped Vibrotactile Stimulation

An overlapped vibration signal composing different information is delivered to several body sites at once. In the pseudo-dribbling case it makes you feel a ball that isn't there — and the same principle is where the work continues.

Most haptic systems drive each body site with its own signal. We asked a simpler question: what happens when one overlapped vibrotactile stimulus is delivered to several parts of the body at the same time?

Participants reported a coherent sense of an object travelling between the hands and feet — a pseudo-dribbling experience — even though nothing in the signal encoded motion explicitly. The effect depends strongly on the relative timing and the envelope shape, and how easy it is to segregate the two components.

The finding suggests a low-cost route to full-body haptic content: one actuator channel, several body sites, and perception doing the rest.

Related papers & talks

2025

Pseudo-Dribbling Experience Using Single Overlapped Vibrotactile Stimulation Simultaneously to the Hand and the Feet

Takumi Kuhara, Kakagu Komazaki, Junji Watanabe, Yoshihiro Tanaka

Multisensory Research, 39(3–5), 379–398

DOI
2023

Spatiotemporal Perception of Single Overlapped Vibrotactile Stimulation to Multiple Body Locations

World Haptics Conference 2023

Full paper (peer-reviewed) · Oral

DOI PDF
2023

手足に対する合成振動触覚刺激提示による運動物体の速度知覚に関する検討

日本バーチャルリアリティ学会大会論文集, 第28回

PDF
2022

合成振動触覚刺激に対する知覚現象の基礎検討

日本バーチャルリアリティ学会大会論文集, 第27回

PDF

Takumi Kuhara — Doctoral Student, Nagoya Institute of Technology

SOVS — Single Overlapped Vibrotactile Stimulation

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