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FENDER'S EEG SCHOOL > MODULE IV. TEMINOLOGY A.2: EPILEPTIFORM > Flashcards

MODULE IV. TEMINOLOGY A.2: EPILEPTIFORM Flashcards

(1) MORPHOLOGIES (2) EPILEPTIFORM (3) LOCATION (4) DURATION (5) AMPLITUDE (6) COMMON MODE REJECTION (7) FREQUENCIES

1
Q

What is the delta frequency band?

A

0.5 - 3.5 Hz

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2
Q

What is the theta frequency band

A

3.5 - 7.5

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3
Q

What is the alpha frequency band?

A

8 - 13 Hz

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4
Q

What is the beta frequency band?

A

13.5 - 30 Hz

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5
Q

What is the gamma frequency band?

A

30 - 200 Hz

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6
Q

Which frequency band is found normally in deep sleep

A

Delta frequency

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7
Q

What frequency band do we most likely see the lighter sleep stages of stages 1 and 2

A

Theta

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8
Q

What region of the brain are the alpha frequency bands most often seen?

A

In the occipital region

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9
Q

When patient is relaxed awake, relaxed with eyes closed which frequency band is generally derived?

A

The Alpha ranges

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10
Q

Which frequencies are derived when the patient is in heavy concentration or when on benzodiazepines?

A

Beta waves

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11
Q

What is the conversion formula for frequency?

A

1/duration

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12
Q

What is the conversion formula for duration?

A

1/frequency

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13
Q

What is the unit of measurement for the frequency bands

A

The unit of measurement is the Hz (Hertz)

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14
Q

What is frequency in EEG?

A

Frequency is the number of wave cycles per second or Hertz (Hz)

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15
Q

What is “duration” in EEG?

A

Duration is the time that an activity or wave persists and it’s measured in seconds

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16
Q

what is Bell’s phenomenon?

A

blinking of the eye where the eyeball moves upward in the head and resulting in an electric charge that is able to be represented in a wave pattern/format

17
Q

what stage of sleep of sleep do sleep spindles occur and at what frequency range?

A

stage 2 of sleep and 11 - 15 Hz

18
Q

what are measures that can be taken (or inherent measures) to minimize the influence of common mode signals?

A

differential amplification, balanced electrode placement, grounding techniques, shielding

19
Q

what is balanced electrode placement?

A

positioning electrodes symmetrically around the head per 20/20 requirements

20
Q

what are electrode grounding techniques?

A

placement of ground electrodes to minimize common mode interference

21
Q

what is shielding?

A

the use of conductive materials or Faraday cages to block/redirect unwanted electrical fields.

FENDER'S EEG SCHOOL (30 decks)

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