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  • Title: Cerebral cortical contributions to sensory evoked potentials: hydranencephaly.
    Author: Lott IT, McPherson DL, Starr A.
    Journal: Electroencephalogr Clin Neurophysiol; 1986 Sep; 64(3):218-23. PubMed ID: 2427316.
    Abstract:
    The contribution of the cerebral cortex to the generation of sensory evoked potentials was studied in an infant with hydranencephaly. On CT scan no tissue above the thalamus was noted. Long-latency potentials to auditory stimuli were absent whereas the short-latency or brain-stem auditory evoked potentials and some of the components of the middle latency auditory evoked potentials (No and Po) were present. To visual stimulation only the electroretinogram was detected. To somatosensory stimulation only the spinal cord potentials could be detected. The absence of long-latency components in each of the sensory modalities supports the concept that these potentials require intact cerebral hemispheres in man.
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