AmbientBreath: Unobtrusive Just-in-time Breathing Intervention Using Multi-sensory Stimulation ...
summary
A closed‑loop system detects breathing with a BioHarness chest strap and triggers multi‑sensory cues when rate exceeds 120% of baseline; two simulator studies with 23 and 31 participants compare auditory, visual, wind and combined cues. Users most often choose auditory+wind; combined cues lower infractions compared with auditory alone, participants can lower breathing rate with stimulation, training increases engagement, and autonomous driving produces stronger engagement than manual driving, though effectiveness depends on driving context.
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