Yin, M. et al. Neuron 84, 1170–1182 (2014).

Tethered preparations used for analyzing brain activity in animals such as rhesus monkeys typically interfere with the animals' behavioral repertoire. Yin et al. have overcome this limitation by developing a lightweight wireless device that can record and transmit brain activity in large quantity and with high fidelity. This neurosensor is compatible with a variety of microelectrode arrays and provides data that are equivalent to data obtained with wired preparations. The researchers demonstrated the capabilities of their wireless device by recording electrical activity from the motor cortex in monkeys walking on a treadmill or sleeping. The device will also be applicable to the electrophysiological analysis of other behaviors in monkeys and perhaps even in human subjects.