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- W2039490717 abstract "Somatosensory evoked potentials (SEPs) were recorded in 41 patients with focal brain lesions recognized by computerized tomography. 21 patients presented damage of the primary sensorimotor area (PSMA), and their SEPs were reduced in amplitude and increased in latency for the two early components (N-22 and N-39), in accordance with previous evidence. The other 20 patients presented lesions remote from the PSMA, 15 (71%) showing abnormal SEPs mainly characterized by increment in amplitude and duration of N-22 and N-39. Abnormalities of the N-70 and later waves were not specific for any type of lesion. SEPs appeared more sensitive than the EEG for detecting brain dysfunction. The physiopathological and clinical importance of these findings are discussed. Les potentiels évoqués somesthésiques (PES) ont été etudiés chez 41 malades atteints de lésions cérébrales focales confirmées par tomodensitométrie (TAC). Une lésion du cortex sensorimoteur primaire (CSMP) a été décelée chez 21 malades; leurs PES étaient caractérisés par une augmentation de la latence et une diminution de l'amplitude des premières composantes (N-22, N-39). Les 20 autres malades, porteurs d'altérations éloignées du CSMP, ont présenté une augmentation de l'amplitude et de la durée de N-22 et de N-39. Les anomalies de N-70 et des ondes plus tardives n'ont été en corrélation avec aucum type de lésion. Les PES semblent ainsi être plus sensibles que l'EEG, pour la détection des lésions cérébrales. Les auteurs discutent l'importance physiopathologique et clinique de ces données." @default.
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- W2039490717 date "1980-07-01" @default.
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- W2039490717 title "Somatosensory evoked potentials: Abnormalities with focal brain lesions remote from the primary sensorimotor area" @default.
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- W2039490717 doi "https://doi.org/10.1016/0013-4694(80)90352-1" @default.
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