Chemical Haptics: Rendering Haptic Sensations via Topical Stimulants
summary
Identifies five skin-active chemicals—sanshool (tingling), menthol (cooling), capsaicin (warming), cinnamaldehyde (stinging), lidocaine (numbing)—and implements them in a soft silicone sleeve and cheek patch with micropumps, open-to-skin channels, thermistor sensors and closed-loop recirculation. Characterizes temporal profiles of each stimulant, builds five VR scenes, and runs a user study where participants consistently rate experiences with chemical haptics as more immersive and all prefer having chemical haptics over none.
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chapters (13)
- 0:00Introduction to Chemical Haptics
- 0:57Limitations of traditional haptics
- 1:39Chemical stimulation of skin receptors
- 2:37Sanshool for tingling sensation
- 3:09Menthol for cooling sensation
- 3:44Lidocaine for numbing sensation
- 4:15Capsaicin for heat sensation
- 4:39Cinnamaldehyde for stinging sensation
- 4:59Device material stack and flow
- 6:17Sleeve and headset implementations
- 6:45User studies on immersion
- 7:15Conclusion and future work
- 9:52Q&A and open source resources
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