Differential effects of gender on mismatch negativity to violations of simple and pattern acoustic regularities.

Introduction: The effects of gender on the mismatch negativity (MMN) potential have been studied using simple frequency deviants. However, the effects of gender on MMN to violations of abstract regularities have not yet been studied. Here, we addressed this issue and compared the effects of gender on simple and pattern frequency MMNs.

The effects of aging on early stages of the auditory deviance detection system.

Objective: The aging effects on auditory change detection have been studied using the Mismatch Negativity (MMN) potential. However, recent studies have found earlier correlates of deviance detection at the level of the middle-latency response (MLR) and the effects of aging on this deviant-related response have not yet been clarified. The purpose of this study was to examine the effects of aging on both levels of the auditory deviance detection system.

Topographic comparison of MMN to simple versus pattern regularity violations: The effect of timing.

Mismatch negativity (MMN) is generated by sounds violating a regular sequence of events including simple regularities related to repetition of acoustic features (e.g. a tone frequency) as well as abstract regularities hidden in stimuli relationships (e.

Functional dissociation between regularity encoding and deviance detection along the auditory hierarchy.

Auditory deviance detection based on regularity encoding appears as one of the basic functional properties of the auditory system. It has traditionally been assessed with the mismatch negativity (MMN) long-latency component of the auditory evoked potential (AEP). Recent studies have found earlier correlates of deviance detection based on regularity encoding.