fMRI

• FMRI - functional magnetic resonance imagining

  This measures changes in brain activity while a person performs a task.

  It measures changes in blood flow in particular areas to the brain which indicates an increase neural activity in those areas.
• Strengths of fMRI

  • Non invasive - does not expose individual to harmful radiation
  • Has a good temporal resolution (shorter delay between activity and imaging)
  • Good spatial resolution depicting detail by mm rather than cm
• Weakness of fMRI

  • Not a direct measure of neuronal activity in areas of the brain, difficult to tell what kind of activity is occurring in these brain areas
  • Overlooks networked nature of brain activity and focuses on localisation instead of communication