Ways of investigating the brain

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  • Created by: gemshort
  • Created on: 17-05-18 19:27

Functional magnetic resonance imaging (fMRI)

  • Identifies which brain areas are more active during a task by measuring oxygenated areas of the brain, by taking pictures of slices of the brain to create a 3D image

Process

  • When neuronal activity increases, there is increased blood flow to provide oxygen in that area
  • The fMRI scanner affects hydrogen atoms in the brain, causing them to 'spin' in the same direction
  • If there are many active hydrogen atoms, a stronger magnetic signal is sent, which is measured by the fMRI

Electroencephalogram

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