The method of gathering information about the brain that indicates the overall activity of the brain is called as –

  1. Positron emission tomography
  2. Electrical Stimulation
  3. Electroencephalogram
  4. None of Above

Positron emission tomography or PET is a technique for imaging the brain in action. The PET images show the active brain regions. Positron emission tomography technique is a scanning method that enables doctors and psychologists to study the brain without surgery.

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