changes in blood oxygenation and flow occur as a result of neural activity in specific parts of the brain
when a part of the brain is more active it consumes more oxygen and to meet this demands, increased blood flow is directed to the areas which is called the haemodynamic response
an fMRI produces 3D images highlighting the areas of the brain involved in particular mental processes
haemodynamic response- when blood rushes to the area to meet the demand for oxygen
activation maps- name of the 3D images created by fMRI
