The Detection of Length and Orientation Changes in Dynamic Vibrotactile Patterns
length & orientation of dynamic patterns of vibrotactile lines, threshold for change detection, college students
Digital Object Identifier (DOI)
Determined vibrotactile thresholds for the detection of length and orientation changes for dynamic line patternspresented on the Optacon in a forced-choice procedure. Ss were 12 sighted students. Even the smallest changes in both length (1.2 mm) and orientation (7°) could be detected in the absence of any other changes in the vibrotactilepattern. The introduction of translations increased the length-change threshold to approximately 4.0 mm, and theintroduction of length changes increased the orientation-change threshold to approximately 25°. The effects of additional variables, including the use of filled and unfilled lines, the timing of presentation, and the position of stimuli on the array were also assessed. Implications for the perception of depth in dynamic vibrotactile patterns are discussed.
Was this content written or created while at USF?
Citation / Publisher Attribution
Perception & Psychophysics, v. 40, issue 5, p. 290-300
Scholar Commons Citation
Schneider, Sandra L.; Hughes, Barry; Epstein, William; and Bach-y-Rita, Paul, "The Detection of Length and Orientation Changes in Dynamic Vibrotactile Patterns" (1986). Psychology Faculty Publications. 1905.