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Remote haptic perception of slanted surfaces shows the same scale expansion as visual perception
Dennis M Shaffer1, Eric McManama
1Department of Psychology, Ohio State University, 1760 University Drive, Mansfield, Ohio, 44906, USA, shaffer.247@osu.edu.
Attention, Perception & Psychophysics
|December 18, 2014
Summary
Haptic and verbal estimates of geographic slant are perceptually equivalent, even for surfaces out of reach. This suggests the haptic system scales similarly to the visual system for orientation perception.
Area of Science:
- Perception science
- Human-computer interaction
- Proprioception
Background:
- Geographic slant overestimations vary by sensory modality (verbal vs. haptic).
- Previous methods for measuring "action" (e.g., palm boards) lack calibration for slanted surfaces.
- Questions arise regarding the reliability of prior findings on haptic perception of slant.
Purpose of the Study:
- To investigate the relationship between a calibrated remote haptic task and verbal overestimates of out-of-reach slanted surfaces.
- To determine if haptic perception of slant is perceptually equivalent to verbal estimates.
- To compare the scaling of the haptic perceptual system with the visual system for slant estimation.
Main Methods:
- Utilized a remote haptic task calibrated for action in previous research.
- Measured verbal overestimates of slanted surfaces that were out of reach.
- Compared haptic and verbal estimates of geographic slant.
Main Results:
- Haptic estimates of slant were found to be perceptually equivalent to verbal overestimates.
- Results align with numerous previous studies on verbal overestimates of slant.
- Demonstrated that the haptic perceptual system scales comparably to the visual system for out-of-reach slant.
Conclusions:
- The haptic perceptual system is scaled similarly to the visual system for estimating the orientation of out-of-reach slanted surfaces.
- Validated the use of calibrated remote haptic tasks for studying slant perception.
- Confirmed the perceptual equivalence between haptic and verbal estimates of geographic slant.
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