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  • Title: The origins of the subcortical component of the median nerve somatosensory evoked potentials.
    Author: Marra TR.
    Journal: Clin Electroencephalogr; 1982 Apr; 13(2):116-21. PubMed ID: 7094353.
    Abstract:
    Short latency median nerve somatosensory evoked potentials (SEPs) were studied in two patients presenting with well localized unilateral pontine lesions producing hemisensory deficits. Both the early subcortical (N11-N13) and the later cortical component (N19-P22) of the SEP were abnormal in the patient whose lesion involved the medial lemniscus, while they remained unaffected in a second case of lateral inferior pontine infarction in which the medial lemniscus was spread. These results suggest that the N11-N13 component of the scalp recorded SEP emanates from the brain stem medial lemniscal pathway.
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