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, especially the frequency is a subjective measure of the consciousness level.

Naturally, the sleep depth is not constant, but is elevated and lowered to a different stage periodically.

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.