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DTSTART:19700308T020000
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BEGIN:VEVENT
DTSTAMP:20251016T135126Z
LOCATION:Riverside East
DTSTART;TZID=America/Chicago:20251014T173000
DTEND;TZID=America/Chicago:20251014T183000
UID:HFESAM_ASPIRE 2025_sess131_POST140@linklings.com
SUMMARY:Can Tactile Information be Used as a Cue in Time-to-Collision Esti
 mation?
DESCRIPTION:Patricia DeLucia and Adam Braly (Rice University) and Daniel O
 berfeld (Johannes Gutenberg-Universität Mainz; Psychologisches Institut, S
 ection Experimental Psychology, Mainz)\n\nWe measured time-to-collision (T
 TC) judgments of (imaginary) approaching objects based on a 250-Hz vibrota
 ctile stimulus delivered to the fingertips by a C-2 tactor. Changes in sti
 mulus intensity simulated a sound source that approached a receiver. The v
 ibration stopped after 1 s when the (imaginary) object’s actual TTC was be
 tween .5 s and 6 s. Participants were told to press a key when they though
 t the object would reach them. They also were told that intensity signifie
 d the object’s distance (less intense is farther). Mean estimated TTC incr
 eased as actual TTC increased, as it does in auditory and visual modalitie
 s, but the relationship was more compressed with tactile stimuli. Judgment
 s were driven by final vibration intensity, rather than the object’s prese
 nted TTC, as we reported previously with auditory TTC estimation. Results 
 have implications for the design of technologies used to aid drivers or pe
 destrians avoid collisions, particularly those with vision loss.\n\n
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