Buildup of Choice-Predictive Activity in Human Motor Cortex during Perceptual Decision Making
Tobias H. Donner,Tobias H. Donner,Tobias H. Donner,Markus Siegel,Markus Siegel,Markus Siegel,Pascal Fries,Andreas K. Engel +7 more
TLDR
This paper found that motor response-selective MEG activity in the "gamma" (64-100 Hz) and "beta" (12-36 Hz) frequency ranges predicted subjects' choices several seconds before their overt manual response, and this choice-predictive activity built up gradually during stimulus viewing toward both "yes" and "no" choices.About:
This article is published in Current Biology.The article was published on 2009-09-29 and is currently open access. It has received 442 citations till now. The article focuses on the topics: Sensory system & Magnetoencephalography.read more
Citations
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Beta-band oscillations--signalling the status quo?
Andreas K. Engel,Pascal Fries +1 more
TL;DR: In this article, the potential functional role of the beta-band oscillations in cognitive processing, on the motor system and on the pathophysiology of movement disorders is discussed. But the authors focus on the maintenance of the current sensorimotor or cognitive state.
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Spectral fingerprints of large-scale neuronal interactions
TL;DR: It is proposed that frequency-specific neuronal correlations in large-scale cortical networks may be 'fingerprints' of canonical neuronal computations underlying cognitive processes.
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Large-scale cortical correlation structure of spontaneous oscillatory activity.
TL;DR: This work found that spontaneous oscillatory neuronal activity exhibited frequency-specific spatial correlation structure in the human brain and developed an analysis approach that discounts spurious correlation of signal power caused by the limited spatial resolution of electrophysiological measures.
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A supramodal accumulation-to-bound signal that determines perceptual decisions in humans.
TL;DR: This work isolated a freely evolving decision variable signal in human subjects that exhibited every aspect of the dynamics observed in its single-neuron counterparts and tracked cumulative evidence even in the absence of overt action.
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Expectation in perceptual decision making: neural and computational mechanisms
TL;DR: This work considers the relationship between visual expectation and related concepts, such as attention and adaptation, and discusses how expectations may influence decision signals at the computational level.
References
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