Paper Info
Title
Static Weight Perception Through Skin Stretch and Kinesthetic Information: Detection Thresholds, JNDs, and PSEs
Abstract
We examined the contributions of kinesthetic and skin stretch cues to static weight perception. In three psychophysical experiments, several aspects of static weight perception were assessed by asking participants either to detect on which hand a weight was presented or to compare between two weight cues. Two closed-loop controlled haptic devices were used to present cutaneous and kinesthetic weights, in isolation and together, with a precision of 0.05 g. Our results show that combining skin stretch and kinesthetic information leads to better weight detection thresholds than presenting uni-sensory cues does. For supra-threshold stimuli, Weber fractions were 22-44%. Kinesthetic information was less reliable for lighter weights, while both sources of information were equally reliable for weights up to 300 g. Weight was perceived as equally heavy regardless of whether skin stretch and kinesthetic cues were presented together or alone. Data for lighter weights complied with an Optimal Integration model, while for heavier weights, measurements were closer to predictions from a Sensory Capture model. The presence of correlated noise might explain this discrepancy, since that would shift predictions from the Optimal Integration model towards our measurements. Our experiments provide device-independent perceptual measures, and can be used to inform, for instance, skin stretch device design.
Year
DOI
Venue
2021
10.1109/TOH.2020.3009599
IEEE Transactions on Haptics
Keywords
DocType
Volume
Cues,Hand,Humans,Kinesthesis,Skin,Weight Perception
Journal
14
Issue
ISSN
Citations 
1
1939-1412
1
PageRank 
References 
Authors
0.35
0
5
Name
Order
Citations
PageRank
Femke E Van Beek110.35
Raymond J King210.35
Casey Brown310.69
Massimiliano Luca4779.90
Sean Keller5313.76