Calibrating reach distance to visual targets.
Identifieur interne : 000B79 ( Ncbi/Curation ); précédent : 000B78; suivant : 000B80Calibrating reach distance to visual targets.
Auteurs : Mark Mon-Williams [Royaume-Uni] ; Geoffrey P. BinghamSource :
- Journal of experimental psychology. Human perception and performance [ 0096-1523 ] ; 2007.
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Abstract
The authors investigated the calibration of reach distance by gradually distorting the haptic feedback obtained when participants grasped visible target objects. The authors found that the modified relationship between visually specified distance and reach distance could be captured by a straight-line mapping function. Thus, the relation could be described using 2 parameters: bias and slope. The authors investigated whether calibration generalized across reach space with respect to changes in bias and slope. In Experiment 1, the authors showed that both bias and slope recalibrate. In Experiment 2, they tested the symmetries of reach space with respect to changes in bias. They discovered that reach space is asymmetric, with the bias shifting inward more readily than outward. The authors measured how rapidly the system calibrated and the stability of calibration once feedback was removed. In Experiment 3, they showed that bias and slope can be calibrated independently of one another. In Experiment 4, the authors showed that these calibration effects are not cognitively penetrable.
DOI: 10.1037/0096-1523.33.3.645
PubMed: 17563227
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