Haptic discrimination of nonsense shapes : hand exploratory strategies but not accuracy reveal laterality effects
Fagot, J., Lacreuse, A, Vauclair, J (1993). Haptic discrimination of nonsense shapes : hand exploratory strategies but not accuracy reveal laterality effects. Brain and Cognition, 21, 212-225
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Abstract – Studies on haptic processing show inconsistent results concerning sex and hand differences. We present a novel approach in which manual exploratory strategies were examined. Twenty-four right-handed adults of both sexes had to monohaptically explore unseen meaningless stimuli and then to recognize their visually presented outline drawings among drawings of different stimuli. Tactual stimuli were composed of eight smoothly joined cubes whose junctions were not haptically discernible. The computer recorded number and duration of hand contacts on each cube. Analyses included the accuracy of the recognition phase, the number and duration of exhaustive explorations of the stimulus, and the number of cubes stimultaneously touched.