Abstract
A method for recording the somatosensory evoked potentials after stimulation of the cervical and lumbosacral dermatomes is described. Normative values and their ranges are given for each dermatome including left-right differences. A significant correlation was found between latencies and conduction distance. Dermatomal SEPs may play a role in diagnosing cervical and lumbosacral radiculopathies.
MeSH terms
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Adolescent
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Adult
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Afferent Pathways / physiology
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Aged
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Electric Stimulation
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Electroencephalography*
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Evoked Potentials, Somatosensory / physiology*
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Female
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Functional Laterality / physiology
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Hand / innervation
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Humans
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Male
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Middle Aged
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Peroneal Nerve / physiology
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Reaction Time / physiology
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Reference Values
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Skin / innervation*
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Spinal Nerve Roots / physiology*
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Sural Nerve / physiology
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Synaptic Transmission / physiology