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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...
