Clinical Correlations of EEG Midline Spikes

Predictability of EEG interictal spikes.

To determine whether EEG spikes are predictable, time series of EEG spike intervals were generated from subdural and depth electrode recordings from four patients. The intervals between EEG spikes were hand edited to ensure high accuracy and eliminate false positive and negative spikes. Spike rates (per minute) were generated from longer time series, but for these data hand editing was usually ...

Frontal midline EEG dynamics during working memory.

We show that during visual working memory, the electroencephalographic (EEG) process producing 5-7 Hz frontal midline theta (fmtheta) activity exhibits multiple spectral modes involving at least three frequency bands and a wide range of amplitudes. The process accounting for the fmtheta increase during working memory was separated from 71-channel data by clustering on time/frequency transforms ...

Seizure semiology and neuroimaging findings in patients with midline spikes.

PURPOSE Midline epileptiform discharges are rare compared with discharges at other scalp locations. Neuroimaging results and semiologic seizure characteristics of patients with midline spikes are not adequately described. The aim of this study was to describe the neuroimaging findings and detailed seizure semiologies in patients with midline spikes. METHODS We reviewed the EEG database of the...

Source Analysis of Interictal Spikes in EEG and MEG

Simultaneous EEG/MEG and ECoG source characterization of interictal spikes

For some TLE patients that do not respond the pharmacological treatment, epilepsy surgery is an option. In those cases, the determination of the location of the sources and the sequence in which they become active is of prime importance. In this paper, we investigate the interpretability and validity of dipole source localization based on EEG, MEG and simultaneous EEG+MEG for TLE interictal spi...