Deutsch
 
Hilfe Datenschutzhinweis Impressum
  DetailsucheBrowse

Datensatz

DATENSATZ AKTIONENEXPORT
  Trial-by-trial coupling between EEG and BOLD identifies networks related to alpha and theta EEG power increases during working memory maintenance

Scheeringa, R., Petersson, K. M., Oostenveld, R., Norris, D. G., Hagoort, P., & Bastiaansen, M. C. M. (2009). Trial-by-trial coupling between EEG and BOLD identifies networks related to alpha and theta EEG power increases during working memory maintenance. Neuroimage, 44, 1224-1238. doi:10.1016/j.neuroimage.2008.08.041.

Item is

Dateien

einblenden: Dateien
ausblenden: Dateien
:
Neuroimage2009_Scheeringa.pdf (Verlagsversion), 3MB
Name:
Neuroimage2009_Scheeringa.pdf
Beschreibung:
-
OA-Status:
Sichtbarkeit:
Öffentlich
MIME-Typ / Prüfsumme:
application/pdf
Technische Metadaten:
Copyright Datum:
-
Copyright Info:
-
Lizenz:
-

Externe Referenzen

einblenden:

Urheber

einblenden:
ausblenden:
 Urheber:
Scheeringa, René1, Autor
Petersson, Karl Magnus2, 3, 4, Autor           
Oostenveld, Robert1, Autor           
Norris, David G.2, Autor
Hagoort, Peter2, 3, 4, Autor           
Bastiaansen, Marcel C. M.2, 3, Autor           
Affiliations:
1Donders Institute for Brain, Cognition and Behaviour, Centre for Cognitive Neuroimaging, ou_55236              
2Donders Institute for Brain, Cognition and Behaviour, Centre for Cognitive Neuroimaging, ou_55236              
3Unification, MPI for Psycholinguistics, Max Planck Society, Nijmegen, NL, ou_55219              
4Neurobiology of Language Group, MPI for Psycholinguistics, Max Planck Society, Nijmegen, NL, ou_102880              

Inhalt

einblenden:
ausblenden:
Schlagwörter: -
 Zusammenfassung: PET and fMRI experiments have previously shown that several brain regions in the frontal and parietal lobe are involved in working memory maintenance. MEG and EEG experiments have shown parametric increases with load for oscillatory activity in posterior alpha and frontal theta power. In the current study we investigated whether the areas found with fMRI can be associated with these alpha and theta effects by measuring simultaneous EEG and fMRI during a modified Sternberg task This allowed us to correlate EEG at the single trial level with the fMRI BOLD signal by forming a regressor based on single trial alpha and theta power estimates. We observed a right posterior, parametric alpha power increase, which was functionally related to decreases in BOLD in the primary visual cortex and in the posterior part of the right middle temporal gyrus. We relate this finding to the inhibition of neuronal activity that may interfere with WM maintenance. An observed parametric increase in frontal theta power was correlated to a decrease in BOLD in regions that together form the default mode network. We did not observe correlations between oscillatory EEG phenomena and BOLD in the traditional WM areas. In conclusion, the study shows that simultaneous EEG fMRI recordings can be successfully used to identify the emergence of functional networks in the brain during the execution of a cognitive task.

Details

einblenden:
ausblenden:
Sprache(n): eng - English
 Datum: 2008-07-072008-03-252008-08-212008-09-182009
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: DOI: 10.1016/j.neuroimage.2008.08.041
 Art des Abschluß: -

Veranstaltung

einblenden:

Entscheidung

einblenden:

Projektinformation

einblenden:

Quelle 1

einblenden:
ausblenden:
Titel: Neuroimage
Genre der Quelle: Zeitschrift
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: -
Seiten: - Band / Heft: 44 Artikelnummer: - Start- / Endseite: 1224 - 1238 Identifikator: Anderer: 954922650166
ISSN: 1053-8119