Mismatch Negativity: Pre-attentive Auditory Deviance Detection

FRONTAL ERP · Fz ELECTRODE · AUDITORY ODDBALL PARADIGM

DEVIANT:|ATTENTION:
-1000100200300400500600-10-50510TIME (ms)AMPLITUDE (µV)STIMULUSSTANDARDDEVIANT (Frequency)DIFFERENCE ℹSCALP TOPOGRAPHYMMN distributionFzFCzCzPz−0+ATTENDEDFREQUENCY DEVIANT

The MMN is elicited pre-attentively by any sound violating an established auditory regularity. Toggle between Attended and Unattended to see the P3a vanish while the MMN persists intact. The difference wave (Deviant minus Standard) isolates the mismatch response from shared obligatory components. Click any badge or the ℹ legend entry to explore components. The scalp topography updates when you open each card.

References: Näätänen et al. (1978) · Näätänen et al. (2007) · Garrido et al. (2009) · Friston (2005)