Variants
this waveform is seen in sleep and is sharp in appearance over the occipital head region
POSTS
the extension arising out of the cell body of the neuron.
axon
SREMS and a dropout of PDR mark this stage
drowsiness
the best way to describe the location of EEG activity.
the generic name for Keppra
levetiracetam
this waveform may be seen unilateral or bilaterally and disappears with thoughts or movement of muscles (especially the hand or fingers)
Mu
neurotransmitters are transfered from one neuron to the next in this space.
synapse or synaptic cleft
in adults, this is the average length of one sleep cycle.
90 minutes
the duration of a sharp wave
70 - 200ms
beta
there are two versions of this waveform with their morphology, amplitude, and location depending on the gender of the patient.
Phantom 6Hz spike and wave
this part of the neuron is the main body and contains the nucleus
soma
this high amplitude, high voltage, diffuse theta-delta slowing, comes in bursts, and only lasts a few seconds in the wake-sleep or sleep-wake transition in children
hypnopompic + hypnagogic hypersynchrony
another name to use instead of location
topography
these two drug groups cause an increase in beta when given in low dosages but generalized slowing when given in high dosages.
barbiturates + benzodiazepines
This waveform is low amplitude, seen over the temporal head regions, where it often bounces between both temporal lobes.
BETS or SSS
glutamate and GABA are examples of neurotransmitters associated with these. They determine the polarity of the waveform being produced.
EPSPs + IPSPs
this waveform is often associated with K-complexes, averaging 12-14hz frequency, and may be seen in early parts of N3 sleep.
sleep spindles
amplitude is a direct reflection of this
voltage
status epilepticus
this variant is 5-7hz in frequency, seen in drowsiness, over the mid-temporal head regions, and is notched in appearance
RMTD
these cells are vital to producing signals seen on the EEG, with two (2) layers of the neocortex named after them.
pyramidal cells
These four (4) additional leads can be used to aid in sleep stage determination
this describes the timing of electrical events in brain areas relative to one another
synchrony
It's important to avoid sodium-channel AEDs in this seizure type to prevent worsening of seizures.
Myoclonic seizures