During the latter half of the 20th century, computed tomography and magnetic resonance imaging (MRI) as well as various evoked potentials have revolutionized the anatomical diagnosis of disorders of the central and peripheral auditory system, and we can expect further advances with such technologies as functional MRI and positron emission tomography. However, auditory evoked potentials have contributed much to our understanding and neurophysiological diagnosis of disorders of the auditory system and still have a very important place which is not revealed by imaging. Defects that are so small as to be invisible to MRI can be detected by evoked potentials. In the case of larger defects, it may be a simple, inexpensive evoked-potential test that raises suspicion of a lesion.
KeywordsAuditory Cortex Auditory System Inferior Colliculus Auditory Brainstem Response Cochlear Nucleus
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