Neural generators of N18 and P14 far-field somatosensory evoked potentials studied in patients with lesion of thalamus or thalamo-cortical radiations
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چکیده
منابع مشابه
Changes in somatosensory evoked potentials following an experimental focal ischaemic lesion in thalamus.
Experiments have been performed to produce localized thalamic ischaemia in baboons anaesthetised with alpha-chloralose. Somatosensory evoked potentials to median nerve stimulation were recorded in the medial lemniscus, VPL of thalamus and the primary somatosensory cortex. Local blood flow was also recorded by the hydrogen clearance technique in these regions. The early potential recorded in tha...
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A deficit of habituation in cortical information processing, including somatosensory evoked potentials (SSEPs), is the most consistent neurophysiological abnormality in migraine patients between attacks. To explore further the mechanisms underlying this interictal neural dysfunction, we have studied the high-frequency oscillations (HFOs) embedded in SSEPs because they are thought to reflect spi...
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The diagnostic value of the pattern reversal evoked cortical potential (VEP) and the somatosensory evoked cortical potential (SEP) has been compared in 50 patients with established or suspected multiple sclerosis. A prolonged latency of VEP was found in 96% of definite cases of multiple sclerosis, 58% of probable cases, and 20% of possible cases. A prolonged latency of SEP by stimulation of med...
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Peripheral, cervical and cortical somatosensory evoked potentials after median or ulnar nerve stimulation were recorded in 21 patients with cervical spondylosis with radiculopathy or myelopathy. The test was normal when pain and paraesthesias were the only symptoms, while pathological in radiculopathy with objective neurological signs. The results varied in patients with cervical myelopathy.
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ژورنال
عنوان ژورنال: Electroencephalography and Clinical Neurophysiology
سال: 1983
ISSN: 0013-4694
DOI: 10.1016/0013-4694(83)90253-5