Cards (5)

  • Identifies the changes in levels of oxygen in blood that occurs due to brain activity in specific areas - high spatial resolution
  • When a brain area is more active, it leads to more oxygen being used so there is an increase of blood flow to this active area
  • fMRI produces a 3D image showing which part of the brain is active, called an activation map
  • It has been used to identify which specific parts of the brain are active in particular mental processes (showing localisation of function)
  • They have a time delay - low temporal resolution