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1000 Titel
  • Prestimulus α/β power in temporal-order judgments: individuals differ in direction of modulation but show consistency over auditory and visual tasks
1000 Autor/in
  1. Boenke, Lars T. |
  2. Zeghbib, Abdelhafid |
  3. Spiliopoulou, Myra |
  4. Alais, David |
  5. Ohl, Frank |
1000 Erscheinungsjahr 2023
1000 LeibnizOpen
1000 Publikationstyp
  1. Artikel |
1000 Online veröffentlicht
  • 2023-05-25
1000 Erschienen in
1000 Quellenangabe
  • 17:1145267
1000 FRL-Sammlung
1000 Copyrightjahr
  • 2023
1000 Lizenz
1000 Verlagsversion
  • https://doi.org/10.3389/fncom.2023.1145267 |
  • https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10248147/ |
1000 Publikationsstatus
1000 Begutachtungsstatus
1000 Sprache der Publikation
1000 Abstract/Summary
  • The processing of incoming sensory information can be differentially affected by varying levels of α-power in the electroencephalogram (EEG). A prominent hypothesis is that relatively low prestimulus α-power is associated with improved perceptual performance. However, there are studies in the literature that do not fit easily into this picture, and the reasons for this are poorly understood and rarely discussed. To evaluate the robustness of previous findings and to better understand the overall mixed results, we used a spatial TOJ task in which we presented auditory and visual stimulus pairs in random order while recording EEG. For veridical and non-veridical TOJs, we calculated the power spectral density (PSD) for 3 frequencies (5 Hz steps: 10, 15, and 20 Hz). We found on the group level: (1) Veridical auditory TOJs, relative to non-veridical, were associated with higher β-band (20 Hz) power over central electrodes. (2) Veridical visual TOJs showed higher β-band (10, 15 Hz) power over parieto-occipital electrodes (3) Electrode site interacted with TOJ condition in the β-band: For auditory TOJs, PSD over central electrodes was higher for veridical than non-veridical and over parieto-occipital electrodes was lower for veridical than non-veridical trials, while the latter pattern was reversed for visual TOJs. While our group-level result showed a clear direction of prestimulus modulation, the individual-level modulation pattern was variable and included activations opposite to the group mean. Interestingly, our results at the individual-level mirror the situation in the literature, where reports of group-level prestimulus modulation were found in either direction. Because the direction of individual activation of electrodes over auditory brain regions and parieto-occipital electrodes was always negatively correlated in the respective TOJ conditions, this activation opposite to the group mean cannot be easily dismissed as noise. The consistency of the individual-level data cautions against premature generalization of group-effects and suggests different strategies that participants initially adopted and then consistently followed. We discuss our results in light of probabilistic information processing and complex system properties, and suggest that a general description of brain activity must account for variability in modulation directions at both the group and individual
1000 Sacherschließung
lokal inter-individual variability
lokal reproducibility
lokal complex systems
lokal gating
lokal consistency
lokal active inhibition
lokal replicability
lokal implicit assumptions
1000 Fächerklassifikation (DDC)
1000 Liste der Beteiligten
  1. https://frl.publisso.de/adhoc/uri/Qm9lbmtlLCBMYXJzIFQu|https://frl.publisso.de/adhoc/uri/WmVnaGJpYiwgQWJkZWxoYWZpZCA=|https://frl.publisso.de/adhoc/uri/U3BpbGlvcG91bG91LCBNeXJh|https://frl.publisso.de/adhoc/uri/QWxhaXMsIERhdmlk|https://orcid.org/0000-0001-8260-9423
1000 (Academic) Editor
1000 Label
1000 Förderer
  1. Australian Research Council |
  2. Deutsche Forschungsgemeinschaft |
1000 Fördernummer
  1. DP 120101474
  2. SFB 779
1000 Förderprogramm
  1. Discovery Project
  2. -
1000 Dateien
1000 Förderung
  1. 1000 joinedFunding-child
    1000 Förderer Australian Research Council |
    1000 Förderprogramm Discovery Project
    1000 Fördernummer DP 120101474
  2. 1000 joinedFunding-child
    1000 Förderer Deutsche Forschungsgemeinschaft |
    1000 Förderprogramm -
    1000 Fördernummer SFB 779
1000 Objektart article
1000 Beschrieben durch
1000 @id frl:6452832.rdf
1000 Erstellt am 2023-06-14T11:27:07.584+0200
1000 Erstellt von 242
1000 beschreibt frl:6452832
1000 Bearbeitet von 317
1000 Zuletzt bearbeitet Tue Sep 05 11:09:02 CEST 2023
1000 Objekt bearb. Tue Sep 05 11:09:02 CEST 2023
1000 Vgl. frl:6452832
1000 Oai Id
  1. oai:frl.publisso.de:frl:6452832 |
1000 Sichtbarkeit Metadaten public
1000 Sichtbarkeit Daten public
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