fMRI By Ivan Suarez Robles 16 Nov, 2010 Stands for ‘functional magnetic resonance imaging.’ This technique uses magnetic fields to measure oxygen use by nerve cells in the brain. It allows researchers to determine which specific areas of the brain are most active during a task.Related Articles: Cognitive Training in HDHDSA Center of Excellence at Columbia UniversityJohns Hopkins Center of ExcellenceNeuroimagingTransgenic HD Monkey Models