Mismatch task conditions and error related ERPs

dc.contributor.author	Καρανάσιου, Ειρήνη Σ.	el
dc.contributor.author	Παπαγεωργίου, Χαράλαμπος	el
dc.contributor.author	Τσιανάκα, Ελένη Ι.	el
dc.contributor.author	Κυπριανού, Μιλτιάδης	el
dc.contributor.author	Ματσόπουλος, Γεώργιος Κ.	el
dc.date.accessioned	2015-02-06T09:45:46Z
dc.date.available	2015-02-06T09:45:46Z
dc.date.issued	2015-02-06
dc.identifier.uri	http://hdl.handle.net/11400/5727
dc.rights	Αναφορά Δημιουργού-Μη Εμπορική Χρήση-Όχι Παράγωγα Έργα 3.0 Ηνωμένες Πολιτείες	*
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/3.0/us/	*
dc.source	http://www.biomedcentral.com/	en
dc.subject	Slider position
dc.subject	Error signal
dc.subject	Ρυθμιστικό θέσης
dc.subject	Σήμα σφάλματος
dc.title	Mismatch task conditions and error related ERPs	en
heal.type	journalArticle
heal.generalDescription	Open access journal	en
heal.classification	Medicine
heal.classification	Biomedical engineering
heal.classification	Ιατρική
heal.classification	Βιοϊατρική τεχνολογία
heal.classificationURI	http://id.loc.gov/authorities/subjects/sh00006614
heal.classificationURI	http://id.loc.gov/authorities/subjects/sh85014237
heal.classificationURI	N/A-Ιατρική
heal.classificationURI	N/A-Βιοϊατρική τεχνολογία
heal.contributorName	Βεντούρας, Ερρίκος Μ.	el
heal.contributorName	Ουζούνογλου, Νικόλαος Κ.	el
heal.identifier.secondary	doi:10.1186/1744-9081-6-14
heal.language	en
heal.access	free
heal.recordProvider	Τ.Ε.Ι. Αθήνας. Σχολή Τεχνολογικών Εφαρμογών. Τμήμα Μηχανικών Βιοϊατρικής Τεχνολογίας Τ.Ε.	el
heal.publicationDate	2010
heal.bibliographicCitation	Karanasiou, I., Papageorgiou, C., Tsianaka, E., Kyprianou, M., Matsopoulos, G., et al. (February 2010). Mismatch Task Conditions and Error Related ERPs. Behavioral and Brain Functions. 6(14). pp. 1-8. licensee BioMed Central Ltd. Available from: http://www.behavioralandbrainfunctions.com [Accessed 23/02/2010]	en
heal.abstract	Background The N200 component of event related potentials (ERPs) is considered an index of monitoring error related responses. The aim of the present work was to study the effect of mismatch conditions on the subjects' responses in an auditory identification task and their relation to the N200 of stimulus-locked ERPs. Methods An auditory identification task required to correctly map a horizontal slider onto an active frequency range by selecting a slider position that matched the stimulus tone in each trial. Fourteen healthy volunteers participated in the study and ERPs were recorded by 32 leads. Results Results showed that the subjects' erroneous responses were equally distributed within trials, but were dependent on mismatch conditions, generated by large differences between the frequencies of the tones of consecutive trials. Erroneous trials showed a significantly greater negativity within the time window of 164-191 ms after stimulus, located mainly at the Cz and Fz electrodes. The LORETA solution showed that maximum activations, as well as maximum differences, were localized mainly at the frontal lobe. Conclusions These findings suggest that the fronto-central N200 component, conceived an index of "reorientation of attention", represents a correlate of an error signal, being produced when representation of the actual response and the required response are compared. Furthermore the magnitude of the amplitude of the N200 rests on the relation between the present and the previous stimulus.	en
heal.publisher	licensee BioMed Central Ltd	en
heal.journalName	Behavioral and Brain Functions	en
heal.journalType	peer-reviewed
heal.fullTextAvailability	true