Specific spatial defect in a child with septo-optic dysplasia.
A blind girl with septo-optic dysplasia was compared with a blind, age-matched control on three spatial tests. Previous observations had suggested a specific spatial learning disorder. Results of the tests showed good verbal intelligence but severe impairment of topographical orientation, route-learning and kinaesthetic memory. It is argued that these dysfunctions were a direct consequence of the malformation syndrome, and could not be accounted for by factors such as sex or congenital blindness.
D000293:Adolescent; D001766:Blindness / Q000151:congenital*; D002648:Child; D004193:Discrimination Learning / Q000502:physiology; D005260:Female; D006801:Humans; D007699:Kinesthesis / Q000502:physiology*; D008297:Male; D009900:Optic Nerve / Q000002:abnormalities*; D009949:Orientation / Q000502:physiology*; D011581:Psychological Tests; D012688:Septum Pellucidum / Q000002:abnormalities*; D013236:Stereognosis / Q000502:physiology