The origin of extracellular fields and currents — EEG, ECoG, LFP and spikes

Nature reviews. Neuroscience, Journal Year: 2012, Volume and Issue: 13(6), P. 407 - 420

Published: May 18, 2012

Language: Английский

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Mechanisms of Gamma Oscillations

Annual Review of Neuroscience, Journal Year: 2012, Volume and Issue: 35(1), P. 203 - 225

Published: May 20, 2012

Gamma rhythms are commonly observed in many brain regions during both waking and sleep states, yet their functions mechanisms remain a matter of debate. Here we review the cellular synaptic underlying gamma oscillations outline empirical questions controversial conceptual issues. Our main points as follows: First, gamma-band rhythmogenesis is inextricably tied to perisomatic inhibition. Second, short-lived typically emerge from coordinated interaction excitation inhibition, which can be detected local field potentials. Third, rhythm concurs with irregular firing single neurons, network frequency varies extensively depending on mechanism. To document oscillations, efforts should made distinguish them mere increases power and/or increased spiking activity. Fourth, magnitude oscillation modulated by slower rhythms. Such cross-frequency coupling may serve couple active patches cortical circuits. Because ubiquitous nature strong correlation "operational modes" circuits, continue provide important clues about neuronal population dynamics health disease.

Language: Английский

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Experimental and Theoretical Approaches to Conscious Processing

Neuron, Journal Year: 2011, Volume and Issue: 70(2), P. 200 - 227

Published: April 1, 2011

Language: Английский

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Large-scale brain networks in cognition: emerging methods and principles

Trends in Cognitive Sciences, Journal Year: 2010, Volume and Issue: 14(6), P. 277 - 290

Published: May 21, 2010

Language: Английский

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Abnormal neural oscillations and synchrony in schizophrenia

Nature reviews. Neuroscience, Journal Year: 2010, Volume and Issue: 11(2), P. 100 - 113

Published: Jan. 20, 2010

Language: Английский

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Neurophysiological and Computational Principles of Cortical Rhythms in Cognition

Physiological Reviews, Journal Year: 2010, Volume and Issue: 90(3), P. 1195 - 1268

Published: July 1, 2010

Synchronous rhythms represent a core mechanism for sculpting temporal coordination of neural activity in the brain-wide network. This review focuses on oscillations cerebral cortex that occur during cognition, alert behaving conditions. Over last two decades, experimental and modeling work has made great strides elucidating detailed cellular circuit basis these rhythms, particularly gamma theta rhythms. The underlying physiological mechanisms are diverse (ranging from resonance pacemaker properties single cells to multiple scenarios population synchronization wave propagation), but also exhibit unifying principles. A major conceptual advance was realization synaptic inhibition plays fundamental role rhythmogenesis, either an interneuronal network or reciprocal excitatory-inhibitory loop. Computational functions synchronous cognition still matter debate among systems neuroscientists, part because notion regular oscillation seems contradict common observation spiking discharges individual neurons highly stochastic far being clocklike. However, recent findings have led framework goes beyond conventional theory coupled oscillators reconciles apparent dichotomy between irregular neuron field potential oscillations. From this perspective, plethora studies will be reviewed involvement long-distance neuronal coherence cognitive such as multisensory integration, working memory, selective attention. Finally, implications abnormal discussed they relate mental disorders like schizophrenia autism.

Language: Английский

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Pathological synchronization in Parkinson's disease: networks, models and treatments

Trends in Neurosciences, Journal Year: 2007, Volume and Issue: 30(7), P. 357 - 364

Published: May 26, 2007

Language: Английский

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Spectral fingerprints of large-scale neuronal interactions

Nature reviews. Neuroscience, Journal Year: 2012, Volume and Issue: 13(2), P. 121 - 134

Published: Jan. 11, 2012

Language: Английский

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Darwin's mistake: Explaining the discontinuity between human and nonhuman minds

Behavioral and Brain Sciences, Journal Year: 2008, Volume and Issue: 31(2), P. 109 - 130

Published: April 1, 2008

Abstract Over the last quarter century, dominant tendency in comparative cognitive psychology has been to emphasize similarities between human and nonhuman minds downplay differences as “one of degree not kind” (Darwin 1871). In present target article, we argue that Darwin was mistaken: profound biological continuity animals masks an equally discontinuity minds. To wit, there is a significant which are able approximate higher-order, systematic, relational capabilities physical symbol system (PSS) (Newell 1980). We show this symbolic-relational pervades nearly every domain cognition runs much deeper than even spectacular scaffolding provided by language or culture alone can explain. propose representational-level specification where animals' abilities PSS similar they differ. conclude suggesting recent symbolic-connectionist models shed new light on mechanisms underlie gap

Language: Английский

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Human gamma-frequency oscillations associated with attention and memory

Trends in Neurosciences, Journal Year: 2007, Volume and Issue: 30(7), P. 317 - 324

Published: May 19, 2007

Language: Английский

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