Q.Do you know what our brain is doing when we are asleep?
When we are resting at night, our brain works. Researchers from the University of Arizona pointed out that
our brain may be replaying the scenes that happened the day before when we are asleep.
|
Stages of Sleep
|
Frequency of Brain Waves | Amplitude of Brain Waves |
|
Awake
|
8-25Hz
|
Low
|
|
1
|
6-8Hz
|
Low
|
|
2
|
4-7Hz
|
Medium
|
|
3
|
1-3Hz
|
High
|
| 4 | Lesser than 2Hz | High |
| Rapid Eye Movement | More than 10Hz | Low |
The EEG (Electroencephalogram) shows the activity of the brain; the EMG (Electromyogram) shows our muscle activity; while the EOG (Electroencephalogram) shows the movement of our nerve. The activity chart would be different when we are awake, in Rapid Eye Movement (Paradoxical Sleep) or during Slow-wave Sleep (Deep Sleep).
