Detection of early cognitive processing by event-related phase synchronization analysis
- In order to investigate the temporal characteristics of cognitive processing, we apply multivariate phase synchronization analysis to event-related potentials. The experimental design combines a semantic incongruity in a sentence context with a physical mismatch (color change). In the ERP average, these result in an N400 component and a P300-like positivity, respectively. The synchronization analysis shows an effect of global desynchronization in the theta band around 288ms after stimulus presentation for the semantic incongruity, while the physical mismatch elicits an increase of global synchronization in the alpha band around 204ms. Both of these effects clearly precede those in the ERP average. Moreover, the delay between synchronization effect and ERP component correlates with the complexity of the cognitive processes.
Volltext Dateien herunterladen
SHA-1:44b1f8f7441d07ef7d52cdc506445f4174707ee8
Weitere Dienste
| Verfasserangaben: | Carsten AllefeldORCiDGND, Stefan Frisch, Matthias Schlesewsky |
|---|---|
| URN: | urn:nbn:de:kobv:517-opus-20126 |
| Schriftenreihe (Bandnummer): | Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe (paper 074) |
| Publikationstyp: | Postprint |
| Sprache: | Englisch |
| Erscheinungsjahr: | 2005 |
| Veröffentlichende Institution: | Universität Potsdam |
| Datum der Freischaltung: | 10.09.2008 |
| Freies Schlagwort / Tag: | N400; P300; alpha; coherence; color change; phase synchronization; semantic incongruity; theta |
| Quelle: | Neuroreport. - 16 (2005), 1, pp. 13 - 16. ISSN (print) 0959-4965, ISSN (online) 1473-558X |
| Organisationseinheiten: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik und Astronomie |
| Extern / Extern | |
| DDC-Klassifikation: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
| Lizenz (Deutsch): |  Keine öffentliche Lizenz: Unter Urheberrechtsschutz |
| Externe Anmerkung: | This is a preprint of the article first published in: Neuroreport. - 16 (2005), 1, pp. 13 - 16 ISSN (print) 0959-4965 ISSN (online) 1473-558X It is not the final version published by Lippincott, Williams & Wilkins. |
