Evoked responses indicate the brain's response to specific stimuli. Three kinds of evoked potential procedures are used by neurologists and specialists:
- Visual evoked potentials test the visual pathways between the retina (eye) and the brain by presenting alternating checkerboard patterns
- Auditory evoked potentials test the auditory pathways between the ear and the brain by presenting auditory clicks
- Somatosensory evoked potentials test the pathways between the peripheral nerves through the spine to the brain by stimulating nerves with small electrical pulses
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