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Prestimulus alpha power biases perceptual decisions and confidences in a tactile temporal discrimination task

J Lange, T Baumgarten, A Schnitzler · Klinische Neurophysiologie · 2014 · Heft 03

Dokument
1143621
CareLit-ID
Jahr
2014
Publikation
PDF
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Metadaten
DOI
ja
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Bibliografische Angaben

Zeitschrift
Klinische Neurophysiologie
Autor:innen
J Lange, T Baumgarten, A Schnitzler
Ausgabe
Heft 03 / 2014
Seiten
–
Erschienen: 2014-03-12 00:00:00
ISSN
1434-0275
DOI
10.1055/s-0034-1371198

Zusammenfassung

Background: Despite physically identical stimuli, sensory stimulation is often perceived differently. Recent studies have demonstrated that prestimulus alpha-band activity plays a substantial role for such variations of perception. Here, we studied the influence of prestimulus alpha power on temporal perceptual discrimination of supra-threshold tactile stimuli and subjects' confidence in their decisions. Data were analyzed within the framework of a decision-making model. Methods: 16 Subjects were presented with electrical stimuli with different stimulus onset asynchronies (SOAs) and asked to report whether they…

Schlagworte

Prestimulus Alpha Power Stimuli Stimulus Perceptual Decisions Temporal Discrimination Perceived Subjects Confidence Klinische Neurophysiologie