A magnetic view of the mind
© Alamy
Using magnetic resonance imaging (MRI), doctors can take a peek inside our heads. In this series of MRI scans, image slices have been taken vertically from one side of the head to the other, revealing all the cerebral structures in the brain. To capture these, powerful magnetic fields excite atoms in the body, then radio waves are used to detect their movements and convert that information into signals that a computer interprets as an image.