The authors thank Prof. Dr. Zoltán Papp for supporting the study of neonates at the First Department of Obstetrics and Gynecology, Semmelweis University, Budapest, Hungary. We also thank RN Erika Józsa Váradiné and RN Tarja Ilkka for collecting the data and István Dániel (Department of Telecommunications and Media Informatics, Budapest University of Technology and Economics) for calibrating the sound stimulation system. This work was supported by the European Commission's 6th Framework Programme for “Information Society Technologies” (project title: EmCAP—Emergent Cognition through Active Perception, contract no.: 013123).
Auditory temporal grouping in newborn infants
Article first published online: 26 MAY 2007
Volume 44, Issue 5, pages 697–702, September 2007
How to Cite
Stefanics, G., Háden, G., Huotilainen, M., Balázs, L., Sziller, I., Beke, A., Fellman, V. and Winkler, I. (2007), Auditory temporal grouping in newborn infants. Psychophysiology, 44: 697–702. doi: 10.1111/j.1469-8986.2007.00540.x
- Issue published online: 26 MAY 2007
- Article first published online: 26 MAY 2007
- (Received February 6, 2007; Accepted April 4, 2007)
- Auditory event-related potential;
- Gamma synchronization;
- Mismatch negativity (MMN);
- Perceptual development
Adults normally perceive auditory scenes in terms of sound patterns emitted by concurrently active sources. Thus pattern formation is an important process of auditory object perception. The aim of the present study was to determine whether neonates group sounds by repeating pitch patterns. Standard (“S”; p=80%) and deviant tones (“D”, p=20%) differing only in pitch were delivered either in a randomized order (random condition) or in a repeating SSSSD pattern (grouped condition). Both event-related brain potentials and gamma-band activity differed between the S and D tones in the random condition but not in the grouped condition. These results suggest that in the grouped condition, the S and D tones were processed as part of the same higher order regularity by the neonate auditory system. Also, for the first time, we observed oscillatory gamma-band activity in neonates, which was sensitive to infrequent pitch changes.