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

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2
Q

Does a statistically rare EEG pattern demonstrate abnormality

A

not necessarily

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3
Q

Does a normal EEG guarantee the absence of pathology

A

No. Not all abnormalities of brain strucuture/function produce EEG abnormalities.

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4
Q

Which state leads to the most variability of normal EEG patterns

A

awake and drowsy states have more variability than sleep

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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

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6
Q

The major age related subdivisions for EEG are:

A
  • EEG up to age 19
  • EEG age 20-60
  • EEG age over 60
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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

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