Title :
Chronic Neural Recording with a 64-Channel Cortical Microsystem
Author :
Sodagar, Amir M. ; Perlin, Gayatri E. ; Yao, Ying ; Najafi, Khalil ; Wise, Kensall D.
Author_Institution :
Eng. Res. Center for Wireless Integrated Micro Syst., Michigan Univ., Ann Arbor, MI
Abstract :
This paper presents initial neural recording results with a 64-channel wireless cortical microsystem. The system can be programmed and powered using an inductive telemetry link, switching an RF carrier between 4 and 8MHz to enter command information. Recorded neural activity is returned to the external world wirelessly over an on-off-keyed 80MHz carrier. The system can be programmed to detect positive, negative, and biphasic spikes on all the channels simultaneously or can monitor one channel with 8 bits of resolution. It has recorded single units from guinea pig auditory cortex over periods of 30 days.
Keywords :
bioelectric phenomena; micromechanical devices; neurophysiology; radiotelemetry; 64-channel cortical microsystem; 80 MHz; chronic neural recording; inductive telemetry link; wireless cortical microsystem; Clocks; Cutoff frequency; Monitoring; Neural engineering; Packaging; Probes; Radio frequency; Telemetry; USA Councils; User interfaces;
Conference_Titel :
Neural Engineering, 2007. CNE '07. 3rd International IEEE/EMBS Conference on
Conference_Location :
Kohala Coast, HI
Print_ISBN :
1-4244-0792-3
Electronic_ISBN :
1-4244-0792-3
DOI :
10.1109/CNE.2007.369694
