DocumentCode :
1183964
Title :
On-Line Real-Time Digital Computer Separation of Extracellular Neuroelectric Signals
Author :
Mishelevich, David J.
Author_Institution :
Subdepartment of Bio-medical Engineering, The Johns Hopkins University School of Medicine, Baltimore, Md. 21205.
Issue :
2
fYear :
1970
fDate :
4/1/1970 12:00:00 AM
Firstpage :
147
Lastpage :
150
Abstract :
An on-line real-time spike recognition and separation system for up to six different spikes in multiple unit extracellular records has been developed using the Micro-LINC 300 computer. Assuming biphasic potentials, the computer extracts four unambiguous variables, two in amplitude and two in time. One variable of a selected pair is plotted against the other on the computer CRT. Points representing the same class of signal will fall into clusters. Cluster boundaries for spike separation are set visually by the investigator. Output is in the form of pulses on different relay lines. The system permits waveforms to overlap up to 15 percent. Examples of system performance with real signals are presented. A comparison is made with other spike recognition systems. A simple system is presented for generating artificial test signals and a technique described for testing any spike recognition system.
Keywords :
Cathode ray tubes; Computer displays; Data mining; Extracellular; Real time systems; Relays; Signal generators; Switches; System performance; System testing; Animals; Cats; Computers; Data Display; Electromyography; Electrophysiology; Methods; Rats; Time Factors;
fLanguage :
English
Journal_Title :
Biomedical Engineering, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9294
Type :
jour
DOI :
10.1109/TBME.1970.4502714
Filename :
4502714
Link To Document :
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