dc.contributor.author
Koller-Schlaud, Kristin
dc.contributor.author
Querbach, Julia
dc.contributor.author
Behr, Joachim
dc.contributor.author
Ströhle, Andreas
dc.contributor.author
Rentzsch, Johannes
dc.date.accessioned
2021-07-12T14:41:40Z
dc.date.available
2021-07-12T14:41:40Z
dc.identifier.uri
https://refubium.fu-berlin.de/handle/fub188/31298
dc.identifier.uri
http://dx.doi.org/10.17169/refubium-31034
dc.description.abstract
Resting-state and event-related frontal alpha asymmetry have been suggested as potential neurobiological biomarkers for depression and other psychiatric conditions. To be used as such, sufficient test-retest reliability needs to be demonstrated. However, test-retest reliability is underinvestigated for event-related alpha asymmetry. The objective of this study was to examine both short-term within-session and long-term between-session reliability of stimulus-related medial and lateral frontal as well as parietal alpha EEG asymmetry in healthy subjects during a simple emotional face processing task. Twenty-three healthy adults participated in two sessions with a test-retest interval of about 1 week. Reliability was estimated with Pearson's correlation coefficient and paired t test. Results revealed moderate to high within-session reliability of stimulus-related alpha asymmetry for all electrode sites and both conditions. Alpha asymmetry mean values did not change significantly within sessions. Between-session reliability was fair for frontomedial and moderate for frontolateral stimulus-related asymmetry. Exploratory exclusion of subjects with unstable between-session self-rating scores of emotional state and empathy toward stimuli resulted in some higher reliability values. Our results indicate that stimulus-related alpha asymmetry may serve as a useful electrophysiological tool given its adequate within-session reliability. However, long-term stability of stimulus-related frontal alpha asymmetry over 1 week was comparatively low and varied depending on electrode position. Influencing state factors during EEG recording, such as current mood or stimulus engagement, should be considered in future study designs and analyses. Further, we recommend to analyze alpha asymmetry from both frontomedial and frontolateral sites.
en
dc.subject
Frontal alpha asymmetry
en
dc.subject
Parietal alpha asymmetry
en
dc.subject
Alpha asymmetry
en
dc.subject.ddc
600 Technik, Medizin, angewandte Wissenschaften::610 Medizin und Gesundheit::610 Medizin und Gesundheit
dc.title
Test-Retest Reliability of Frontal and Parietal Alpha Asymmetry during Presentation of Emotional Face Stimuli in Healthy Subjects
dc.type
Wissenschaftlicher Artikel
dcterms.bibliographicCitation.doi
10.1159/000505783
dcterms.bibliographicCitation.journaltitle
Neuropsychobiology
dcterms.bibliographicCitation.number
6
dcterms.bibliographicCitation.originalpublishername
Karger
dcterms.bibliographicCitation.pagestart
428
dcterms.bibliographicCitation.pageend
436
dcterms.bibliographicCitation.volume
79
dcterms.rightsHolder.note
Copyright applies in this work.
dcterms.rightsHolder.url
http://rightsstatements.org/vocab/InC/1.0/
refubium.affiliation
Charité - Universitätsmedizin Berlin
refubium.note.author
Dieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG geförderten) Allianz- bzw. Nationallizenz frei zugänglich.
de
refubium.note.author
This publication is shared with permission of the rights owner and made freely accessible through a DFG (German Research Foundation) funded license at either an alliance or national level.
en
refubium.resourceType.isindependentpub
no
dcterms.accessRights.openaire
open access
dcterms.bibliographicCitation.pmid
32182618
dcterms.isPartOf.issn
0302-282X
dcterms.isPartOf.eissn
1423-0224