Prestimulus alpha-band power biases visual discrimination confidence, but not accuracy
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TLDR
A clear dissociation between objective and subjective measures of visual perception as a function of prestimulus cortical excitability is found, predicted by a model where the balance of evidence supporting each choice drives objective performance but only the magnitude of evidence support the selected choice drives subjective reports.About:
This article is published in Consciousness and Cognition.The article was published on 2017-09-01 and is currently open access. It has received 163 citations till now.read more
Citations
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Journal ArticleDOI
Prestimulus EEG Power Predicts Conscious Awareness But Not Objective Visual Performance.
Christopher S.Y. Benwell,Chiara F. Tagliabue,Domenica Veniero,Roberto Cecere,Silvia Savazzi,Gregor Thut +5 more
TL;DR: Evidence is provided that prestimulus α power influences the level of subjective awareness of threshold visual stimuli but does not influence visual sensitivity when a decision has to be made regarding stimulus features, finding a clear dissociation between the influence of ongoing neural activity on conscious awareness and objective performance.
Journal ArticleDOI
The functional role of alpha-band activity in attentional processing: the current zeitgeist and future outlook.
TL;DR: Some of the research into the functional significance of alpha oscillations with respect to attention and expectation is reviewed, focusing on how the amplitude and phase of alpha activity might be involved in the prioritization of relevant sensory input.
Journal ArticleDOI
Frequency modulation of neural oscillations according to visual task demands.
TL;DR: It is found that the peak frequency of alpha oscillations decreased when visual task demands required temporal integration compared with segregation, and alpha frequency was strategically modulated immediately before and during stimulus processing, suggesting a preparatory top-down source of modulation.
Journal ArticleDOI
The role of alpha oscillations in spatial attention: limited evidence for a suppression account.
Joshua J. Foster,Edward Awh +1 more
TL;DR: There is limited evidence, however, for the widely embraced view that alpha oscillations suppress irrelevant visual information during spatial selection, and more work is needed to characterize the computational role of alpha activity in spatial attention.
Journal ArticleDOI
Multiple mechanisms link prestimulus neural oscillations to sensory responses.
Luca Iemi,Luca Iemi,Luca Iemi,Niko A. Busch,Annamaria Laudini,Saskia Haegens,Saskia Haegens,Jason Samaha,Arno Villringer,Arno Villringer,Vadim V. Nikulin +10 more
TL;DR: Electroencephalography in humans during stimulation with identical visual stimuli is recorded and analyzed how prestimulus neural oscillations modulate different stages of sensory processing reflected by distinct components of the event-related potential (ERP).
References
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Journal ArticleDOI
EEGLAB: an open source toolbox for analysis of single-trial EEG dynamics including independent component analysis.
Arnaud Delorme,Scott Makeig +1 more
TL;DR: EELAB as mentioned in this paper is a toolbox and graphic user interface for processing collections of single-trial and/or averaged EEG data of any number of channels, including EEG data, channel and event information importing, data visualization (scrolling, scalp map and dipole model plotting, plus multi-trial ERP-image plots), preprocessing (including artifact rejection, filtering, epoch selection, and averaging), Independent Component Analysis (ICA) and time/frequency decomposition including channel and component cross-coherence supported by bootstrap statistical methods based on data resampling.
Book
Signal detection theory and psychophysics
David M. Green,John A. Swets +1 more
TL;DR: This book discusses statistical decision theory and sensory processes in signal detection theory and psychophysics and describes how these processes affect decision-making.
Journal ArticleDOI
Nonparametric statistical testing of EEG- and MEG-data
Eric Maris,Robert Oostenveld +1 more
TL;DR: This paper forms a null hypothesis and shows that the nonparametric test controls the false alarm rate under this null hypothesis, enabling neuroscientists to construct their own statistical test, maximizing the sensitivity to the expected effect.
Book
Detection Theory: A User's Guide
TL;DR: This book discusses Detection and Discrimination of Compound Stimuli: Tools for Multidimensional Detection Theory and Multi-Interval Discrimination Designs and Adaptive Methods for Estimating Empirical Thresholds.
Journal ArticleDOI
Shaping functional architecture by oscillatory alpha activity : gating by inhibition
Ole Jensen,Ali Mazaheri +1 more
TL;DR: It is proposed that information is gated by inhibiting task-irrelevant regions, thus routing information to task-relevant regions and the empirical support for this framework is discussed.
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