Which diagnostic study provides the best evaluation of the functional integrity of cerebral motor pathways?
a. Electroencephalography c. Motor-evoked potentials
b. Xenon CT d. Emission tomography
C
Motor-evoked potentials assess the functional integrity of descending motor pathways. The motor cortex is stimulated via direct high-voltage electrical stimulation through the scalp or use of a magnetic field to induce an electrical current within the brain.
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