Neuromagnetism: tracking the dynamics of the brain

The mysterious relationship between human behaviour and the way our brains work is something that neuroscientists have long sought to understand. The relationship is a complex one, but neuroscientists can be grateful to physicists for having developed a variety of instruments that have played a crucial role in shaping progress in the field. Scientists now have a range of techniques, including magnetic resonance imaging and positron emission tomography, that provide totally non-invasive "windows" into the brains of both healthy and diseased individuals.