Long-term monitoring demonstrated no inter-ictal abnormalities during wakefulness and sleep. Similarly, the EEG was normal during ssizures. A confident diagnosis of frontal lobe epilepsy was made, bas...
Seizures consist of pins and needles in the right hand, a "pulling" feeling and videos show piano playing movements with the right hand, which she reports as being involuntary and with retained awaren...
Is the following an example of a seizure, spiking in the parietal region, slow alpha variant, drowsiness or sleep? The first 2 pages represent 20 consecutive seconds. Subsequent epochs are identical t...
What is the nature of this sharply contoured waveform in the middle of the page? The patient is in stage II sleep (No eyeblinks, no EMG, presence of spindles and an electropositive vertex wave approxi...
Above: Awake, normal background rhythms for age (principally theta frequencies over the posterior head regions and beta frequencies that are best developed at CZ), oblique eye movement (first arrow)...
The above page, represented on the referential montage:
The above are frontal alpha frequencies, physiologically normal. Notice the gradual ascent and descent of the waveforms.
The patient is ...
What is the nature of the following sharp and slow waves?
These appear in the parasagittal derivations only. They resemble spike-and-wave. They are either electro-negative anteriorly or electroposi...
65y, two episodes of amnesia lasting 1.5 hours and about three hours, previous traumatic brain injury with amnesia for approximately 24 hours
F7 is artifactual, but only partially so and the represent...
EEG 1:
11 years old, normal awake recording. EEGs 1--10 apply to this patient.
EEG 2:
Sleep, notice "14- and 6-Hz positive bursts", most clearly seen in channel 21 (as the 14 Hz discharge) just abov...
