本文由 AI 分析生成
建立時間： 2026-04-02 來源： https://hci.cs.uni-saarland.de/projects/haptex/
Summary
HaptEx (CHI 2026) investigates how well haptic feedback is perceived while a shoulder exoskeleton is actively actuating the wearer’s body. A controlled study (N=24) compares four haptic channels — poking, proprioceptive, thermal, and vibrotactile — under varying actuation levels, finding that poking is fastest, thermal and proprioceptive are most accurate and noticeable, and thermal feedback aligns best with actuation intensity.
HaptEx（CHI 2026）研究在肩部外骨骼致動時，使用者對觸覺回饋的感知能力。N=24 的控制實驗比較四種觸覺通道，發現戳刺感知最快，熱覺與本體感覺最準確，熱覺與致動強度的搭配感最佳。
Key Points
- Exoskeletons need to communicate system states (warnings, status) to users — haptic feedback is a natural channel given body contact.
- Four channels tested: poking (fastest detection), proprioceptive (most accurate, strongest urgency), thermal (most noticeable, best alignment with actuation level), vibrotactile (baseline).
- Actuation levels affected error rates and noticeability but not response times — the exoskeleton’s own motion doesn’t mask haptic detection latency.
- Design implication: use thermal for state-aligned feedback (e.g., load level), proprioceptive for urgency signaling.
Insights
The finding that actuation doesn’t affect response time is counterintuitive — you might expect the robot’s own movement to mask or delay haptic perception. The fact that it affects noticeability but not latency suggests haptic attention is processed separately from motor-kinesthetic experience. The thermal/proprioceptive distinction (state vs. urgency) is a directly actionable design principle for exoskeleton notification systems.
Connections
Raw Excerpt
Thermal notifications aligned best with the actuation levels, producing a distinct sensation that blended naturally with movement. In contrast, proprioceptive notifications conveyed the strongest sense of urgency.