Mismatch Negativity

The mismatch negativity (MMN) or mismatch field (MMF) is a component of the event-related potential (ERP) to an odd stimulus in a sequence of stimuli. It arises from electrical activity in the brain and is studied within the field of cognitive neuroscience and psychology. It can occur in any sensory system, but has most frequently been studied for audition and for vision. In the case of auditory stimuli, the MMN occurs after an infrequent change in a repetitive sequence of sounds (sometimes the entire sequence is called an oddball sequence.) For example, a rare deviant (d) sound can be interspersed among a series of frequent standard (s) sounds (e.g., s s s s s s s s s d s s s s s s d s s s d s s s s...). The deviant sound can differ from the standards in one or more perceptual features such as pitch, duration, or loudness. The MMN can be elicited regardless of whether the subject is paying attention to the sequence. During auditory sequences, a person can be reading or watching a silent subtitled movie, yet still show a clear MMN. In the case of visual stimuli, the MMN occurs after an infrequent change in a repetitive sequence of images.

MMN refers to the mismatch response in electroencephalography (EEG); MMF or MMNM refer to the mismatch response in magnetoencephalography (MEG).

Read more about Mismatch Negativity:  History, Characteristics, Neurolinguistics of MMN, The MMN For Basic Stimulus Features, MMN Vs Auditory Sensory Memory, Relationship To Attentional Processes, MMN in Clinical Research, Theory

Other articles related to "mismatch negativity":

Mismatch Negativity - Theory
... Integral to this memory trace view is that there are i) a population of sensory afferent neuronal elements that respond to sound, and ii) a separate population of memory neuronal elements that build a neural model of standard stimulation and respond more vigorously when the incoming stimulation violates that neural model, eliciting an MMN ... An alternative "fresh afferent" interpretation (Näätänen, 1992 Jääskeläinen et al ...
Methods of Testing Echoic Memory - Mismatch Negativity
... sensory memory that does not require focused attention are mismatch negativity (MMN) tasks, which record changes in activation in the brain by use of ...
Neurolinguist - Experimental Design - Experimental Techniques - Mismatch Paradigm
... The mismatch negativity (MMN) is a rigorously documented ERP component frequently used in neurolinguistic experiments ... For example, a landmark study by Colin Phillips and colleagues used the mismatch negativity as evidence that subjects, when presented with a series of speech sounds with acoustic ... In addition, the mismatch negativity has been used to study syntactic processing and the recognition of word category ...