Nerve06/central nervous system/classification of the electroencephalogram

　The frequency of the electroencephalogram (EEG) during sleep is low, and that during calculation is high. Thus the pattern of EEG, and in particular the frequency, is a subjective measure of the consciousness level.

Naturally, sleep frequency is not constant, rather it is periodically higher and lower according to the different sleep stages.

Challenge Quiz

1.

Delta wave is seen during deep sleep light sleep rest, eyes-closed and awake psycho-activity such as calculation  正解!.

2.

Theta wave is seen during deep sleep light sleep rest, eyes-closed and awake psycho-activity such as calculation  正解!.

3.

Alpha wave is seen during deep sleep light sleep rest, eyes-closed and awake psycho-activity such as calculation  正解!.

4.

Alpha wave is seen during eyes-opened eyes-closed  正解!.

5.

Beta wave is seen during deep sleep light sleep rest, eyes-closed and awake psycho-activity such as calculation  正解!.

6.

The delta theta alpha beta  正解! wave is seen during deep sleep.

7.

The delta theta alpha beta  正解! wave is seen during light sleep.

8.

The delta theta alpha beta  正解! wave is seen during rest, eyes-closed and awake.

9.

The delta theta alpha beta  正解! wave is seen during psycho-activity eg calculation.

10.

The frequency of the delta wave is about 0.5-3 4-7 8-13 13-18  正解! Hz.

11.

The frequency of the theta wave is about 0.5-3 4-7 8-13 13-18  正解! Hz.

12.

The frequency of the alpha wave is about 0.5-3 4-7 8-13 13-18  正解! Hz.

13.

The frequency of the beta wave is about 0.5-3 4-7 8-13 13-18  正解! Hz.

14.

The frequency of the delta theta alpha beta  正解! wave is about 0.5-3 Hz.

15.

The frequency of the delta theta alpha beta  正解! wave is about 4-7 Hz.

16.

The frequency of the delta theta alpha beta  正解! wave is about 8-13 Hz.

17.

The frequency of the delta theta alpha beta  正解! wave is about 13-18Hz.