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79. Investigating Stochastic Resonance in Tactile Discrimination
DescriptionStochastic resonance is a phenomenon where addition of noise to a system enhances the system's signal-to-noise ratio. It can improve the ability to detect weak signals. Lugo et al. (2008) showed that tactile detection threshold decreased when participants received auditory white noise. We aimed to replicate the results of Lugo et al. (2008), except that we measured tactile discrimination. We examined whether discrimination between durations of vibrotactile stimuli would be better when auditory noise was presented. Participants performed a 2AFC task for three noise conditions: No noise, 45 dB, 55 dB. Seventeen out of twenty-four participants demonstrated increased tactile sensitivity when white noise was present compared to when it was absent, which is not statistically significant. The optimal noise level varied among individuals. Eight participants performed best at 45 dB and 4 at 55 dB. Hence, determining the ideal noise level for each person is crucial for enhancing tactile sensitivity.
Event Type
Poster
TimeWednesday, September 11th5:30pm - 6:30pm MST
LocationMcArthur Ballroom
Tracks
Aerospace Systems
Cognitive Engineering & Decision Making
Computer Systems
Forensics Professional
Health Care
Human Performance Modeling
Individual Differences in Performance
Perception and Performance
Product Design
Safety
Training
Usability and System Evaluation
Extended Reality