28 Nov '16, 8pm

Neuroscientists Wirelessly Control the Brain of a Scampering Lab Mouse

Neuroscientists Wirelessly Control the Brain of a Scampering Lab Mouse

Most previous devices sent power into the brain via electromagnetic induction, in which a transmitting coil sends electromagnetic waves through the air to a receiving coil. This is an old idea that Nikola Tesla experimented with in the early 1900s, and which has recently been adapted for the wireless charging of electric cars and smartphones. But this energy-transfer method has major disadvantages. To keep the receiving coil tiny enough to fit inside a mouse brain, the transmitting structure needs to be in close proximity to the animal. Ensuring that the mouse receives its power boost as it moves around the cage is also difficult. Either the system must maintain a strong electromagnetic field that covers the whole enclosure, wasting all the energy not received by the implanted device, or it must aim the field at the moving mouse, which requires tracking the animal as it sc...

Full article: http://spectrum.ieee.org/biomedical/devices/neuroscientis...

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