Abstract
We have recorded continuous in-vivo EEG and single-unit electrical activity from un-tethered rodents using an inductively powered and implantable wireless neural recording device. The device uses an integrated circuit to amplify modulate and transmit neural signals. The IC transmits neural signals (15 /spl mu/V to 15 mV) at 3.2 GHz to a receiver located outside the environment of a behaving test animal with an input output correlation better than 90%. The design of the IC and the inductive powering are described.
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