Visual Mismatch Negativity

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Abstract
The visual homolog of the (auditory) mismatch negativity, the vMMN, has already been reviewed ( Pazo-Alvarez, Cadaveira, & Amenedo, 2003 ), but a considerable body of more recent research exists. The present paper concentrates on two crucial issues of vMMN research. These issues are the memory-dependence of the vMMN and the problem of attentive vs. nonattentive processing in vMMN research. While both issues require further clarification, vMMN seems to be a promising index of the nonattentional registration of the violation of environmental rules in the visual word.