Q:

The a (alpha) rhythm of the electroencephalogram

safaTerkawi
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2022-08-10
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The a  (alpha) rhythm of the electroencephalogram.

  1. Disappears when the eyes are closed.
  2. Is an electrical potential with an amplitude around one millivolt.
  3. Has a frequency of 8–12 Hz.
  4. Has a lower frequency than the (delta) rhythm.
  5. Indicates that the subject is awake.
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safaTerkawi
2022-08-10
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A. False It is best seen when the subject’s eyes are closed.

B. False It is much smaller, at around 50 microvolts.

C. True It is described in terms of frequency and amplitude.

D. False The upper limit of the delta rhythm is 3.5 Hz.

E. True It disappears with the onset of sleep

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