Techniques to study the brain Flashcards

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1
Q

fMRI

A
  • Functional magentic resonance
  • measure brain activity by detecting blood flow changes
  • magnetic fields and radiowaves to detect blood oxygen dependent levels from different areas of the brain
  • the signal indicates the blood flow levels and thus the activity
  • fMRI scans to pinpoint areas of high activity
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2
Q

MRI

A
  • radio waves and magnets
  • protons in body align with magnets
  • when hit with radiowaves they hit out of alignment so when the waves are switched off they go back in alignment
  • emitt radiowaves an you get a picture
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