This research was supported by the German Research Foundation. We thank Sandra Hasse and Franziska Wende for assistance in data acquisition.
Auditory streaming affects the processing of successive deviant and standard sounds
Article first published online: 25 NOV 2005
Volume 42, Issue 6, pages 668–676, November 2005
How to Cite
Müller, D., Widmann, A. and Schröger, E. (2005), Auditory streaming affects the processing of successive deviant and standard sounds. Psychophysiology, 42: 668–676. doi: 10.1111/j.1469-8986.2005.00355.x
- Issue published online: 25 NOV 2005
- Article first published online: 25 NOV 2005
- (Received November 29, 2004; Accepted June 3, 2005)
- Auditory stream segregation;
- Event-related potential (ERP);
- Mismatch negativity (MMN);
This study investigated the temporal relation between two early mechanisms of auditory information processing: the segregation of the auditory input into streams and the automatic deviance detection indicated by the mismatch negativity (MMN). To address this question the processing of successive deviant and standard tones within streaming and nonstreaming conditions was analyzed. In the streaming condition the amplitude reduction of MMN elicited by the second of two successive deviants was found to be smaller for successive deviants presented in different than in same streams. No corresponding MMN differences were obtained in a nonstreaming condition. These results demonstrate that stream segregation precedes deviance detection. Moreover, modulations of the N1 amplitudes elicited by successive standard tones in the streaming condition demonstrate that not only deviance-related processing but even initial sound processing is affected by streaming.