Eyes closed

It is possible to elicit alpha waves in the main visual area of your brain if you close your eyes.

Alpha waves are the brain’s default 'relaxed and alert' mode. When you are alert but close your eyes, alpha waves will usually dominate the occipital lobe region at the back of your brain, indicating that this part of the brain is ready to receive information.

Try this: Working with partner to observe your brain activity, close your eyes for about 10 seconds, then open them again. Your partner should see increase in the alpha activity in the back part of your brain (occipital lobe) during the time you had your eyes closed. This alpha activity should decrease when you open your eyes. Switch roles and try again.

Note: For best results, set the gain of the Alpha frequency band at the center of its dynamic range and turn down the other frequency bands.

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