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Indications of nonlinear deterministic and finite-dimensional structures in time series of brain electrical activity: dependence on recording region and brain state.
We compare dynamical properties of brain electrical activity from different recording regions and from different physiological and pathological brain states. Using the nonlinear prediction error andExpand
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Mean phase coherence as a measure for phase synchronization and its application to the EEG of epilepsy patients
Abstract We apply the concept of phase synchronization of chaotic and/or noisy systems and the statistical distribution of the relative instantaneous phases to electroencephalograms (EEGs) recordedExpand
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Seizure prediction: the long and winding road.
The sudden and apparently unpredictable nature of seizures is one of the most disabling aspects of the disease epilepsy. A method capable of predicting the occurrence of seizures from theExpand
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Human memory formation is accompanied by rhinal–hippocampal coupling and decoupling
In humans, distinct processes within the hippocampus and rhinal cortex support declarative memory formation. But do these medial temporal lobe (MTL) substructures directly cooperate in encoding newExpand
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On the predictability of epileptic seizures
OBJECTIVE An important issue in epileptology is the question whether information extracted from the EEG of epilepsy patients can be used for the prediction of seizures. Several studies have claimedExpand
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A robust method for detecting interdependences: application to intracranially recorded EEG
We present a measure for characterizing statistical relationships between two time sequences. In contrast to commonly used measures like cross-correlations, coherence and mutual information, theExpand
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Symbolic transfer entropy.
We propose to estimate transfer entropy using a technique of symbolization. We demonstrate numerically that symbolic transfer entropy is a robust and computationally fast method to quantify theExpand
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Assessing seizure dynamics by analysing the correlation structure of multichannel intracranial EEG.
Epileptic seizures are commonly characterized as 'hypersynchronous states'. This habit is doubly misleading, because seizures are not necessarily synchronous and are not unchanging 'states' butExpand
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Real-time tracking of memory formation in the human rhinal cortex and hippocampus.
A fundamental question about human memory is which brain structures are involved, and when, in transforming experiences into memories. This experiment sought to identify neural correlates of memoryExpand
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