Title

The Detection of Length and Orientation Changes in Dynamic Vibrotactile Patterns

Document Type

Article

Publication Date

9-1986

Keywords

Length Change, Orientation Change, Oblique Effect, Angular Change, Vibrotactile Threshold

Digital Object Identifier (DOI)

https://doi.org/10.3758/BF03203020

Abstract

Vibrotactile thresholds for the detection of length and orientation changes were determined for dynamic line patterns presented on the Optacon in a forced-choice procedure. 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 vibrotactile pattern. The introduction of translations increased the length-change threshold to approximately 4.0 mm, and the introduction of length changes increased the orientation-change threshold to approximately 25°. The effects of several additional variables were assessed; these included the use of filled and unfilled lines, the timing of presentation, and the position of stimuli on the array. The implications for the perception of depth in dynamic vibrotactile patterns are discussed.

Was this content written or created while at USF?

No

Citation / Publisher Attribution

Perception & Psychophysics, v. 40, issue 5, p. 290-300

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