Mismatch negativity
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The mismatch negativity (MMN) is a change-related brain response described in the field of cognitive neuroscience. It is an auditory event-related potential (ERP) component, which is elicited task-independently by an infrequent change in a repetitive sound sequence. The MMN is elicited in response to violations of simple rules governing the properties of auditory information and is considered to reflect the automatic formation of a short-term neural model of the physical or abstract regularities in the auditory environment. The MMN is a fronto-central negative potential with sources in the primary and non-primary auditory cortex and a latency of 150-250 ms post-stimulus.
The mismatch negativity was first discovered and described by Risto Näätänen and colleagues.
[edit] References
Näätänen, R., Winkler, I., 1999. The concept of auditory stimulus representation in cognitive neuroscience. Psychological Bulletin 125, 826-859.
Picton, T.W., Alain, C., Otten, L., Ritter, W., Achim, A., 2000. Mismatch negativity: Different water in the same river. Audiology and Neuro-otology 5, 111-139.
Sabri, M., De Lugt, D.R., Campbell, K., 2000. The mismatch negativity to frequency deviants during the transition from wakefulness to sleep. Canadian Journal of Experimental Psychology 54, 230-240.
Winkler, I., Karmos, G., Näätänen, R., 1996. Adaptive modeling of the unattended acoustic environment reflected in the mismatch negativity event-related potential. Brain Research 742, 239-252.
