This article provides a selective review on the perspectives of the clinical research and
application of the mismatch negativity (MMN), a component of the auditory event-related
potential generated by the brain's automatic response to any discriminable change in
auditory stimulation. The MMN (and its magnetic equivalent MMNm) currently provide the
only objective measure of auditory discrimination and sensory memory. It can be registered
in the absence of attention and with no task requirements, which makes it particularly�…