Title :
Real-time multi-channel system for neural spikes acquisition and detection
Author :
Huang, Li ; Zhang, Xu ; Guan, Ning ; Chen, Sanyuan ; Gui, Yun ; Pei, Weihua ; Chen, Hongda
Author_Institution :
Inst. of Semicond., Beijing, China
Abstract :
A real-time multi-channel system for neural spikes acquisition and detection is presented in this paper. It incorporates self-designed micro-machined silicon recording probes, specific multi-channel biomedical amplifiers, analog-to-digital converters and a digital signal processor. The system can inspect 32 channels of neural signals, detect the spikes simultaneously, and display 1 channel of the original signals and 32 channels of detection results on the PC screen. The function of the system is verified in a saline environment and the accuracy of the spike detection is 95%. Such system can be used as a head stage for free-moving and long-term recording, and even closed-loop recording and stimulating applications.
Keywords :
amplifiers; analogue-digital conversion; biomedical electrodes; brain; brain-computer interfaces; closed loop systems; data acquisition; elemental semiconductors; medical signal detection; medical signal processing; microelectrodes; micromachining; neurophysiology; real-time systems; silicon; silicon-on-insulator; PC screen; Si; analog-to-digital converters; brain machine interfaces; closed-loop recording; digital signal processor; free-moving recording; long-term recording; microelectrodes; multichannel biomedical amplifiers; neural signals; neural spike acquisition; neural spike detection; real-time multichannel system; self-designed micromachined silicon recording probes; Accuracy; Digital signal processing; Probes; Real-time systems; Signal processing algorithms; Signal to noise ratio; Silicon;
Conference_Titel :
New Circuits and Systems Conference (NEWCAS), 2012 IEEE 10th International
Conference_Location :
Montreal, QC
Print_ISBN :
978-1-4673-0857-1
Electronic_ISBN :
978-1-4673-0858-8
DOI :
10.1109/NEWCAS.2012.6328978
