@article{ref1,
title="Haptic Distal Spatial Perception Mediated by Strings: Point of Closest Approach and Bypass Distance",
journal="Journal of experimental psychology: human perception and performance",
year="2012",
author="Cabe, Patrick A. and Hofman, L. Leigh",
volume="38",
number="5",
pages="1328-1340",
abstract="Four experiments examined haptic perception of two distal spatial properties in a bypass event. A hook suspended a string held taut between the participant's finger and a weight. Moving their fingers laterally beneath the hook, participants estimated the finger's point of closest approach (PCA) to the hook and bypass distance (BPD; i.e., hook height above the finger's track at PCA). Experiment 1 yielded near perfect PCA estimates (group average r > .99), independent of BPD and traverse distance. Experiment 2 replicated PCA results, and showed good BPD estimates (group r = .74). BPD estimates depended on lateral movement distance to PCA, but not weight. In Experiment 3, feedback on accuracy improved BPD estimates (maximum group average R = .91). Magnitude estimation of BPD in Experiment 4 yielded a power law relationship (group average r = .90; exponent, .30). Results show that human perceivers can make effective judgments of PCA and BPD using haptically available force relationships. Results are interpreted in terms of haptics as a telemodality, the Gibsonian perceptual research program, and dynamic touch. (PsycINFO Database Record (c) 2012 APA, all rights reserved).<p /> <p>Language: en</p>",
language="en",
issn="0096-1523",
doi="10.1037/a0027738",
url="http://dx.doi.org/10.1037/a0027738"
}