Robotic tools are too big for ‘keyhole’ brain surgery – but a new miniature technology using magnets could change all that.

Recently, neuroscientists and an art historian asked ten subjects to examine the wrist detail from the painting, and—using a technique called trans­cranial magnetic stimulation (TMS ...

we can manipulate the magnetic fields, causing the tools to grip, pull or cut tissue as desired. In open brain surgery, the surgeon relies on their own dexterous wrist to pivot the tools and tilt ...