Designing a Vibrotactile Language for a Wearable Vest

We designed a wearable vest that houses a set of actuators to be placed at specific points on the body. We developed vibrotactile patterns to induce five sensation types: 1 Calming, 2 patterns, Up and Down back 2 Feel Good 4 patterns in different directions around the waist, 3 Activating 2 patterns, Tarzan and Shiver, on top front of body and then down the back as well for Shiver, 4 Navigation 2 patterns, Turn Left and Turn Right, prompting on back then opposite side front waist for full body turning and 5 Warning, 1 pattern on solar plexus to slow down or stop the wearers. We made an overlap between the pulses, which were of longer durations than the short burst saltation pulses designed to induce muscle movement. Our participants responded well to the Calming and Feel Good patterns, but reported mixed responses to Activation, Navigation and Warning patterns.

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