Deutsch
 
Hilfe Datenschutzhinweis Impressum
  DetailsucheBrowse

Datensatz

DATENSATZ AKTIONENEXPORT
  Alpha-band brain oscillations shape the processing of perceptible as well as imperceptible somatosensory stimuli during selective attention

Forschack, N., Nierhaus, T., Müller, M. M., & Villringer, A. (2017). Alpha-band brain oscillations shape the processing of perceptible as well as imperceptible somatosensory stimuli during selective attention. The Journal of Neuroscience, 37(29), 6983-6994. doi:10.1523/JNEUROSCI.2582-16.2017.

Item is

Basisdaten

einblenden: ausblenden:
Genre: Zeitschriftenartikel

Dateien

einblenden: Dateien
ausblenden: Dateien
:
Forschack_2017.pdf (Verlagsversion), 3MB
Name:
Forschack_2017.pdf
Beschreibung:
-
OA-Status:
Sichtbarkeit:
Öffentlich
MIME-Typ / Prüfsumme:
application/pdf / [MD5]
Technische Metadaten:
Copyright Datum:
-
Copyright Info:
-
Lizenz:
-

Externe Referenzen

einblenden:

Urheber

einblenden:
ausblenden:
 Urheber:
Forschack, Norman1, Autor           
Nierhaus, Till1, 2, Autor           
Müller, Matthias M.3, Autor
Villringer, Arno1, 4, Autor           
Affiliations:
1Department Neurology, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634549              
2Neurocomputation and Neuroimaging Unit, FU Berlin, Germany, ou_persistent22              
3Institute of Psychology, University of Leipzig, Germany, ou_persistent22              
4Berlin School of Mind and Brain, Humboldt University Berlin, Germany, ou_persistent22              

Inhalt

einblenden:
ausblenden:
Schlagwörter: Electroencephalography; Linear mixed effects modeling; Mu-alpha oscillations; Somatosensory evoked potentials; Spatial selective attention; Subthreshold electrical stimulation
 Zusammenfassung: Attention filters and weights sensory information according to behavioral demands. Stimulus-related neural responses are increased for the attended stimulus. Does alpha-band activity mediate this effect and is it restricted to conscious sensory events (suprathreshold), or does it also extend to unconscious stimuli (subthreshold)? To address these questions, we recorded EEG in healthy male and female volunteers undergoing subthreshold and suprathreshold somatosensory electrical stimulation to the left or right index finger. The task was to detect stimulation at the randomly alternated cued index finger. Under attention, amplitudes of somatosensory evoked potentials increased 50--60 ms after stimulation (P1) for both suprathreshold and subthreshold events. Pre-stimulus amplitude of peri-Rolandic alpha, that is mu, showed an inverse relationship to P1 amplitude during attention, compared to when the finger was unattended. Interestingly, intermediate and high amplitudes of mu rhythm were associated with the highest P1 amplitudes during attention and smallest P1 during lack of attention, that is, these levels of alpha rhythm seemed to optimally support the behavioral goal (“detect” stimuli at the cued finger while ignoring the other finger). Our results show that attention enhances neural processing for both suprathreshold and subthreshold stimuli and they highlight a rather complex interaction between attention, Rolandic alpha activity, and their effects on stimulus processing.

Details

einblenden:
ausblenden:
Sprache(n): eng - English
 Datum: 2017-05-122016-08-152017-05-172017-06-192017-07-19
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: DOI: 10.1523/JNEUROSCI.2582-16.2017
PMID: 28630252
Anderer: Epub 2017
 Art des Abschluß: -

Veranstaltung

einblenden:

Entscheidung

einblenden:

Projektinformation

einblenden: ausblenden:
Projektname : Funktion von Aufmerksamkeit bei kognitiven Prozessen / GRK 1182
Grant ID : -
Förderprogramm : -
Förderorganisation : Deutsche Forschungsgemeinschaft (DFG)

Quelle 1

einblenden:
ausblenden:
Titel: The Journal of Neuroscience
  Kurztitel : J. Neurosci.
Genre der Quelle: Zeitschrift
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: -
Seiten: - Band / Heft: 37 (29) Artikelnummer: - Start- / Endseite: 6983 - 6994 Identifikator: ISSN: 0270-6474
CoNE: https://pure.mpg.de/cone/journals/resource/954925502187_1