[HTML][HTML] Delta oscillation coupled propagating fast ripples precede epileptiform discharges in patients with focal epilepsy
Epileptiform spikes are used to localize epileptogenic brain tissue. The mechanisms that
spontaneously trigger epileptiform discharges are not yet elucidated. Pathological fast ripple …
spontaneously trigger epileptiform discharges are not yet elucidated. Pathological fast ripple …
Ripples on spikes show increased phase‐amplitude coupling in mesial temporal lobe epilepsy seizure‐onset zones
Summary Objective Ripples (80–150 Hz) recorded from clinical macroelectrodes have been
shown to be an accurate biomarker of epileptogenic brain tissue. We investigated coupling …
shown to be an accurate biomarker of epileptogenic brain tissue. We investigated coupling …
Pathological neurons generate ripples at the UP‐DOWN transition disrupting information transfer
Objective To confirm and investigate why pathological high‐frequency oscillations (pHFOs),
including ripples (80–200 Hz) and fast ripples (200–600 Hz), are generated during the UP …
including ripples (80–200 Hz) and fast ripples (200–600 Hz), are generated during the UP …
Network mechanisms for fast ripple activity in epileptic tissue
Fast ripples are high-frequency, 250–600Hz field potential oscillations which can be
recorded from hippocampal or neocortical structures. In the neocortex, fast ripples occur …
recorded from hippocampal or neocortical structures. In the neocortex, fast ripples occur …
High-frequency oscillations and mesial temporal lobe epilepsy
The interest of epileptologists has recently shifted from the macroscopic analysis of interictal
spikes and seizures to the microscopic analysis of short events in the EEG that are not …
spikes and seizures to the microscopic analysis of short events in the EEG that are not …
Fast ripple analysis in human mesial temporal lobe epilepsy suggests two different seizure-generating mechanisms
J Schönberger, B Frauscher, N von Ellenrieder… - Neurobiology of …, 2019 - Elsevier
Objective The distinction of hypersynchronous (HYP) and low-voltage fast (LVF) onset
seizures in mesial temporal lobe epilepsy (MTLE) is well established, but classifying …
seizures in mesial temporal lobe epilepsy (MTLE) is well established, but classifying …
Bimodal coupling of ripples and slower oscillations during sleep in patients with focal epilepsy
I Song, I Orosz, I Chervoneva, ZJ Waldman, I Fried… - …, 2017 - Wiley Online Library
Objective Differentiating pathologic and physiologic high‐frequency oscillations (HFO s) is
challenging. In patients with focal epilepsy, HFO s occur during the transitional periods …
challenging. In patients with focal epilepsy, HFO s occur during the transitional periods …
Fast ripples reflect increased excitability that primes epileptiform spikes
The neuronal circuit disturbances that drive inter-ictal and ictal epileptiform discharges
remain elusive. Using a combination of extra-operative macro-electrode and micro-electrode …
remain elusive. Using a combination of extra-operative macro-electrode and micro-electrode …
Stereotyped high-frequency oscillations discriminate seizure onset zones and critical functional cortex in focal epilepsy
High-frequency oscillations in local field potentials recorded with intracranial EEG are
putative biomarkers of seizure onset zones in epileptic brain. However, localized 80–500 Hz …
putative biomarkers of seizure onset zones in epileptic brain. However, localized 80–500 Hz …
Evoked versus spontaneous high frequency oscillations in the chronic electrocorticogram in focal epilepsy
MA Van't Klooster, NEC Van Klink, D Van Blooijs… - Clinical …, 2017 - Elsevier
Objective Spontaneous high frequency oscillations (HFOs; ripples 80–250 Hz, fast ripples
(FRs) 250–500 Hz) are biomarkers for epileptogenic tissue in focal epilepsy. Single pulse …
(FRs) 250–500 Hz) are biomarkers for epileptogenic tissue in focal epilepsy. Single pulse …
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