Cascades and Cognitive State: Focused Attention Incurs Subcritical Dynamics
نویسندگان
چکیده
منابع مشابه
Cascades and cognitive state: focused attention incurs subcritical dynamics.
The analysis of neuronal avalanches supports the hypothesis that the human cortex operates with critical neural dynamics. Here, we investigate the relationship between cascades of activity in electroencephalogram data, cognitive state, and reaction time in humans using a multimodal approach. We recruited 18 healthy volunteers for the acquisition of simultaneous electroencephalogram and function...
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Recent experimental and theoretical work has established the hypothesis that cortical neurons operate close to a critical state which describes a phase transition from chaotic to ordered dynamics. Critical dynamics are suggested to optimize several aspects of neuronal information processing. However, although critical dynamics have been demonstrated in recordings of spontaneously active cortica...
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Finite-state cascades represent an attractive architecture for parsing unrestricted text. Deterministic parsers speciied by nite-state cascades are fast and reliable. They can be extended at modest cost to construct parse trees with nite feature structures. Finally, such deterministic parsers do not necessarily involve trading oo accuracy against speed| they may in fact be more accurate than ex...
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When attention is diffuse, as in a visual search task, an abrupt onset almost invariably succeeds in capturing attention. But if attention had been cued in advance to a different location, the same onset may then fail to capture attention (Theeuwes, 1991; Yantis and Jonides, 1990). In previous demonstrations, the onset appeared frequently. This may have diminished the onset's novelty, which in ...
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ژورنال
عنوان ژورنال: Journal of Neuroscience
سال: 2015
ISSN: 0270-6474,1529-2401
DOI: 10.1523/jneurosci.3694-14.2015