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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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  • Open Access
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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  • Open Access
Sustained Neural Activity Patterns during Working Memory in the Human Medial Temporal Lobe
In contrast to classical findings that the medial temporal lobe (MTL) specifically underlies long-term memory, previous data suggest that MTL structures may also contribute to working memory (WM).Expand
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High-frequency neural activity and human cognition: Past, present and possible future of intracranial EEG research
Human intracranial EEG (iEEG) recordings are primarily performed in epileptic patients for presurgical mapping. When patients perform cognitive tasks, iEEG signals reveal high-frequency neuralExpand
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Epileptic seizures are preceded by a decrease in synchronization
The exact mechanisms leading to the occurrence of epileptic seizures in humans are still poorly understood. It is widely accepted, however, that the process of seizure generation is closelyExpand
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  • Open Access
Memory Consolidation by Replay of Stimulus-Specific Neural Activity
Memory consolidation transforms initially labile memory traces into more stable representations. One putative mechanism for consolidation is the reactivation of memory traces after their initialExpand
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Phase/amplitude reset and theta–gamma interaction in the human medial temporal lobe during a continuous word recognition memory task
We analyzed intracranial electroencephalographic (EEG) recordings from the medial temporal lobes of 12 epilepsy patients during a continuous word recognition paradigm, contrasting trials of correctlyExpand
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  • Open Access
Monitoring spike train synchrony
Recently, the SPIKE-distance has been proposed as a parameter-free and timescale-independent measure of spike train synchrony. This measure is time resolved since it relies on instantaneous estimatesExpand
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  • Open Access