Spontaneous Brain Oscillations and Perceptual Decision-Making.

Trends in Cognitive Sciences
Jason SamahaNiko A Busch

Abstract

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.

Citations

Dec 22, 2020·Neuroscience of Consciousness·J D KnottsBrian Odegaard
Mar 6, 2021·The European Journal of Neuroscience·Georgios MichailJulian Keil
Mar 4, 2021·The European Journal of Neuroscience·Christopher S Y BenwellGregor Thut
Apr 20, 2021·Frontiers in Neuroscience·Maryam FaramarziChristoph S Herrmann
May 12, 2021·The European Journal of Neuroscience·Daniel SchneiderMalte Wöstmann
Aug 12, 2021·Neuroscience of Consciousness·Shira Baror, Biyu J He
Oct 1, 2021·Nature Communications·Jason da Silva CastanheiraSylvain Baillet
Dec 15, 2021·ELife·Daniel S KlugerJoachim Gross
Jan 30, 2022·Current Biology : CB·Francesco Di GregorioVincenzo Romei

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