Across the lab, an anaesthetised rat was hooked up to a device that made the creature's neurons fire whenever it delivered an ultrasonic pulse to the rat's motor cortex. Seung-Schik Yoo of Harvard ...

Meanwhile, an anaesthetised rat was hooked up to a device that made the creature’s neurons fire whenever it delivered an ultrasonic pulse to the rat’s motor cortex. When monitoring the human ...

Typically these scans must be done on anaesthetised rats in a fixed scanner. The device, Nature Methods, external, will allow researchers to study them in detail as they move, acquiring both ...