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Your brain waves have been measured. This involved monitoring the functioning of your nervous system.

The nervous system includes all the nerves in the body, as well as the brain and the spinal cord. The nerves run from the brain and spinal cord into the body. They convey information in the body.

Brainwaves are electrical signals in the brain. These electrical signals send information in the brain. Information like this may relate, for example, to awareness, various movements or sensations.

To measure the brain waves, a lot of small sensors are attached to the person’s head. This examination is also known as an EEG. The EEG machine then records the brain waves in the different parts of the brain. These recordings look like curves or waves. The waves look different, depending on how the brain is working.

Brain waves are temporarily changed by external sensations. You have had your brain waves measured to see what they look like after various sensations. A noise and a touch are examples of these sensations. An electrical current may also be used to stimulate specific nerves, in the arm for example. The EEG machine then measures whether and when the signal gets to the brain from the nerve.