Answer:
1) Beta waves
2) Alpha waves
3) Theta waves
4) Delta waves
Step-by-step explanation:
1) Beta waves
The person is awake and alert. These waves have very low amplitude and a high frequency of 13 - 30 waves\second
2) Alpha waves
The person is awake and relaxed, with closed eyes. These waves have low amplitude and a frequency of 8 - 13 waves/second
3) Theta waves
The person is sleepy or in sleep transition.. These waves have low-medium amplitude and a frequency of 3 - 7 waves/second
4) Delta waves
The person is in deep sleep. These waves have high amplitude and a low frequency of about 3 waves/second