Abstract

Müller, D., Widmann, A., & Schröger, E. (2005). Deviance-repetition effects as a function of stimulus feature, feature value variation, and timing: a mismatch negativity study. Biological Psychology, 68(1), 1-14.

Deviance-repetition effects as a function of stimulus feature, feature value variation, and timing: a mismatch negativity study

The human auditory pre-attentive change detection system, indicated by the mismatch negativity component (MMN) of the event-related brain potential is known to be sensitive for the successive presentation of tones deviating in frequency. The present study investigated deviance-repetition effects as a function of stimulus feature, feature value variation, and stimulus-onset asynchrony (SOA). For succession of frequency and location deviants carrying the same feature value, MMN elicited by the second deviant was reduced significantly. The reduction of MMN amplitude was markedly smaller, if the second of two successive deviants carries a different feature value, as compared with same feature value deviants. The variation of SOA across the temporal window of integration did not influence the deviance-repetition effects. We suggest that the pre-attentive change-detection system evaluates the informational content of the succession of deviants enabling an effective scanning of the auditory environment for potentially relevant events.



Contact

Cognitive and Biological Psychology

University of Leipzig
Faculty of Life Sciences
Institute of Psychology
Neumarkt 9-19
D-04109 Leipzig

Secretariat

Dagmar Schrödl
Phone: +49 341 97-39570
Email: dagmar dot schroedl at uni-leipzig dot de

Dorit Thieme
Phone: +49 341 97-39540
Email: d dot thieme at uni-leipzig dot de

Fax: +49 341 97-39271