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Eighteen cases of spastic diplegia (SD) ranging in age from 5 year 4 month to 9 year 5 month with preterm birth were studied to clarify the relationship between visuo-perceptual impairment and their cerebral lesions. All underwent neuropsychological examinations including the Frostig developmental test of visual perception, Tanaka-Binet or Suzuki-Binet intelligence test, and MRI examination. Cerebral lesions were detected in all subjects, and the volume of the peritrigonal white matter of the parietal and occipital lobes was significantly correlated with the visuo-perceptual impairment (r = 0.74, in the axial plane; r = 0.64, in the coronal plane). We propose that visuo-perceptual impairment is caused by cerebral lesions and that the measurement of peritrigonal white matter by MRI is useful for detecting potential visuoperceptual impairment at an early age.
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Received in revised form: May 31, 1992
Received: March 30, 1992
© 1992 Published by Elsevier Inc.