Title

Haptic roughness perception of linear gratings via bare finger or rigid probe.

Date of Original Version

1-1-2007

Type

Article

PubMed ID

17564201

Abstract or Description

The magnitude of perceived roughness was haptically estimated as subjects freely explored linear gratings with either the bare finger or a rigid stylus-shaped probe. A considerably expanded range of ridge and groove width was investigated, relative to the extant literature. The four experiments collectively indicate that, for both finger and probe-end effectors, the variance in the estimates of perceived roughness was predominantly predicted by a single parameter: groove width. The functions relating perceived roughness to groove width increased over a narrow band relative to the full range of values, then flattened. These data have archival values for models of roughness perception involving both direct and indirect touch.

DOI

10.1068/p5746

 

Published In

Perception, 36, 4, 547-557.