Spontaneous Brain Oscillations and Perceptual Decision-Making.
alpha oscillations
computational model
electrophysiology
perceptual awareness
signal detection theory
Journal
Trends in cognitive sciences
ISSN: 1879-307X
Titre abrégé: Trends Cogn Sci
Pays: England
ID NLM: 9708669
Informations de publication
Date de publication:
08 2020
08 2020
Historique:
received:
02
03
2020
revised:
04
05
2020
accepted:
06
05
2020
pubmed:
10
6
2020
medline:
28
4
2021
entrez:
10
6
2020
Statut:
ppublish
Résumé
Making rapid decisions on the basis of sensory information is essential to everyday behaviors. Why, then, are perceptual decisions so variable despite unchanging inputs? Spontaneous neural oscillations have emerged as a key predictor of trial-to-trial perceptual variability. New work casting these effects in the framework of models of perceptual decision-making has driven novel insight into how the amplitude of spontaneous oscillations impact decision-making. This synthesis reveals that the amplitude of ongoing low-frequency oscillations (<30 Hz), particularly in the alpha-band (8-13 Hz), bias sensory responses and change conscious perception but not, surprisingly, the underlying sensitivity of perception. A key model-based insight is that various decision thresholds do not adapt to alpha-related changes in sensory activity, demonstrating a seeming suboptimality of decision mechanisms in tracking endogenous changes in sensory responses.
Identifiants
pubmed: 32513573
pii: S1364-6613(20)30116-9
doi: 10.1016/j.tics.2020.05.004
pii:
doi:
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Review
Langues
eng
Sous-ensembles de citation
IM
Pagination
639-653Informations de copyright
Published by Elsevier Ltd.