Hemispheric asymmetries in a tactile thought task for normal subjects.
14 normal subjects were given two tactile-recognition tasks. Subjects were asked to match the tactually presented nonsense figures to the visual-recognition display on a Non-rotation task. On the Mental-rotation task subjects matched the tactile figures which were presented in various directions by means of mental rotation to the visual display. A greater superiority of the left hand on the Mental-rotation task was noted while on the Non-rotation task no differences between hands were shown. The right hemisphere may contibute more strongly to higher thought processes especially those which do not need verbal mediation.
D000293:Adolescent; D000328:Adult; D004193:Discrimination Learning; D004292:Dominance, Cerebral; D005260:Female; D005556:Form Perception; D006801:Humans; D008297:Male; D009949:Orientation; D010364:Pattern Recognition, Visual; D014110:Touch