FINGERTIP FORCE, SURFACE GEOMETRY, AND THE PERCEPTION OF ROUGHNESS BY ACTIVE TOUCH

Authors
  1. Lederman, S.J.
  2. Taylor, M.M.
Corporate Authors
Defence and Civil Inst of Environmental Medicine, Downsview ONT (CAN)
Abstract
Ss made magnitude estimates of the perceived roughness of grooved metal plates under conditions of active touch with controlled finger force. The wider the grooves in the plate, the narrower the lands between the grooves, or the greater the finger force, the greater was the perceived roughness. Increase in finger force also slightly increased the slope of the magnitude estimation function, suggesting not only that the roughness of a uniform surface but also the contrasts in the roughness of differing parts of a patterned surface would be altered by changes in the manner of feeling the surface.
Report Number
RP-824 — Research Paper
Date of publication
01 Jan 1972
Number of Pages
8
Reprinted from
Perception & Psychophysics, vol 12, no 5, 1972, p401-408
DSTKIM No
73-01810
CANDIS No
17673
Format(s):
Hardcopy

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