Mini-Sensor Measures Brain Activity

Atomic physicists develop magnetic-field sensor for brain, heart.
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  1. Brain waves - Repetitive activity from the nerve cells in the brain, generating electrical and magnetic signals. Also called a neural oscillation.
  2. Neuromagnetic Field – magnetic fields created as a result of nerve activity in the brain or other parts of the nervous system.
  3. Alpha wave--a kind of brain wave associated with tasks such as opening and closing eyes.