Hemispheric Specialization For Linguistic And Nonlinguistic Tactual Perception In A Congenitally Deaf Population

Two groups of congenitally deaf and two groups of hearing right-handed subjects identified pairs of nonsense shapes and letters after simultaneous bilateral tactual exploration. In response to shapes, left and right hand pointing to multiple choice arrays were compared . . . Groups initially exposed to letters showed significant right field superiority across response modes for shapes. No left-right asymmetries were observed for letters.