High-Frequency Oscillations Recorded on Scalp EEG
نویسندگان
چکیده
منابع مشابه
Human scalp recorded sigma activity is modulated by slow EEG oscillations during deep sleep.
The EEG during deep sleep exhibits a distinct cortically generated slow oscillation of around and below 1 Hz which can be distinguished from other delta (0.5-3.5 Hz) activity. Intracranial studies showed that this slow oscillation triggers and groups cortical network firing. In the present study, we examined whether the phases of the slow oscillation during sleep stage 4 are correlated with the...
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OBJECTIVE The somatosensory evoked potential (SEP) elicited by median nerve stimulation consists of the N20 peak together with the concurrent high frequency oscillation (HFO, > 500 Hz). We describe the conditions for HFO detection in ECoG and scalp EEG in intraoperative recordings. METHODS During neurosurgical interventions in six patients under propofol anesthesia, the SEP was recorded from ...
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Scalp recorded electroencephalogram signals (EEG) reflect the combined synaptic and axonal activity of groups of neurons. In addition to their clinical applications, EEG signals can be used as support for direct brain-computer communication devices (Brain-Computer Interfaces BCIs). Indeed, during the performance of mental activities, EEG patterns that characterize them emerge. If actions execut...
متن کاملSuccessful memory encoding is associated with increased cross-frequency coupling between frontal theta and posterior gamma oscillations in human scalp-recorded EEG
Although previous studies have established that successful memory encoding is associated with increased synchronization of theta-band and gamma-band oscillations, it is unclear if there is a functional relationship between oscillations in these frequency bands. Using scalp-recorded EEG in healthy human participants, we demonstrate that cross-frequency coupling between frontal theta phase and po...
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Objective: The surgical resection of brain areas with high rates of visually identified high frequency oscillations (HFOs) on EEG has been correlated with improved seizure control. However, it can be difficult to distinguish normal from pathological HFOs, and the visual detection of HFOs is very time-intensive. An automated algorithm for detecting HFOs and for wide-band spectral analysis is des...
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ژورنال
عنوان ژورنال: Epilepsy Currents
سال: 2012
ISSN: 1535-7597,1535-7511
DOI: 10.5698/1535-7511-12.2.57