Showing papers on "Haptic technology published in 1976"

Perceptual orientational asymmetries: A comparison of visual and haptic space

Abstract: Stimulus orientation discrimination was investigated in visual and haptic modalities under conditions of simultaneous matching and memory. Discrimination of vertical and horizontal was significantly more accurate than discrimination of oblique stimulus orientations (45°, 135°, 225°, and 315°) for both modalities; haptic errors, however, were significantly greater at each orientation. While subjects were reliably more accurate in visually matching oblique stimulus orientations to a standard than producing them from memory, for the haptic modality, differences between memory and matching conditions were less consistent across the orientations sampled.

Are two hands better than one? assessing information acquired from one- and two-handed haptic exploration of random forms.

Abstract: 15 male undergraduates were presented with 10-sided random forms which they explored visually, or one-handed haptically, or two-handed haptically. Forms were exposed for various durations and subjects were required to draw each form immediately after its removal. The results indicated that 30 sec. of one-handed exploration and 20 and 30 sec. of two-handed exploration produced performance comparable to just 2 sec. of visual exploration. Two-handed exploration was significantly superior to one-handed exploration only at the 20-sec. exposure duration. These results illustrate the disparity in the information-gathering capabilities between the visual and haptic systems.

The Haptic Approach in Practice

Abstract: more fully explored. 1 As Figure 1 illustrates schematically, the size of the cerebral cortex devoted to motor control, particularly the hand, is considerable. It follows that the techniques of teaching should utilize these large areas of gray matter and program them into the learning process. The first requisite is to find the child’s level of development to understand his fears and frustrations, and to appeal to his interests. His individual language, or tool of expression, must be discovered, and then translated into a common language. The variety and individuality of our approach is best illustrated by the following cases.