Are two hands better than one? assessing information acquired from one- and two-handed haptic exploration of random forms.
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.
D005556:Form Perception; D007839:Functional Laterality; D006801:Humans; D007257:Information Theory; D008297:Male; D010056:Overlearning; D013997:Time Factors; D014110:Touch; D014796:Visual Perception