Fisch EEG Primer Chapter 8 Flashcards
Definition of the normal EEG, relation to brain function
1
Q
An EEG is called normal when it…
A
lacks abnormal patterns known to be associated with clinical disorders
2
Q
Does a statistically rare EEG pattern demonstrate abnormality
A
not necessarily
3
Q
Does a normal EEG guarantee the absence of pathology
A
No. Not all abnormalities of brain strucuture/function produce EEG abnormalities.
4
Q
Which state leads to the most variability of normal EEG patterns
A
awake and drowsy states have more variability than sleep
5
Q
Which EEG patterns have been proven to be definitely abnormal for each age group?
A
Spikes, sharp waves, certain slow waves and amplitude changes
6
Q
The major age related subdivisions for EEG are:
A
- EEG up to age 19
- EEG age 20-60
- EEG age over 60
7
Q
The EEG in those up to 19 years old is marked by…
A
a greater variety of normal patterns than seen in adulthood
