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Questions and Answers
Which brainwave pattern is characterized by high frequency waves of 15 to 60 per second and low amplitude of 5 to 10 µV?
Which brainwave pattern is characterized by high frequency waves of 15 to 60 per second and low amplitude of 5 to 10 µV?
- Theta waves
- Alpha rhythm
- Beta rhythm (correct)
- Delta waves
What happens to the alpha waves in EEG when the eyes are opened?
What happens to the alpha waves in EEG when the eyes are opened?
- They become desynchronized (correct)
- They disappear
- They get stronger
- Their frequency increases
In which type of mental state would you expect to observe alpha rhythm in EEG?
In which type of mental state would you expect to observe alpha rhythm in EEG?
- During peak performance state
- Inattentive brain or mind like drowsiness (correct)
- During REM sleep
- In NREM sleep
What is the frequency range of alpha waves in EEG?
What is the frequency range of alpha waves in EEG?
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What is the effect of visual stimuli or mental effort on alpha rhythm?
What is the effect of visual stimuli or mental effort on alpha rhythm?
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Which type of waves replace synchronized alpha waves when the eyes are opened?
Which type of waves replace synchronized alpha waves when the eyes are opened?
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When does alpha block occur in EEG recordings?
When does alpha block occur in EEG recordings?
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