FMRI

• Functional Magnetic Resonance Imaging
• Works by detecting the changes in both blood oxygenation and flow that occur as a result of neural activity in specific parts of the brain.

• When a brain area becomes more active it consumes more oxygen and to meet this increase in demand, blood flow is directed to the active area. (Haemodynamic response)
• Produces three dimensional images (activation maps) showing which parts of the brain are involved in a mental process.
• A method used to measure braina ctivity while a person is performing a task. fMRI detects radio waves from changing magnetic fields. This enables researchers to detect which regions of the brain are rich in oxygen and thus are active.


  Functional Magnetic Resonance Imaging