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IEEE Trans Biomed Eng · Mar 1992
Separation of action potentials in multiunit intrafascicular recordings.
- E V Goodall and K W Horch.
- Department of Bioengineering, University of Utah, Salt Lake City 84112.
- IEEE Trans Biomed Eng. 1992 Mar 1; 39 (3): 289-95.
AbstractClassification of action potentials in multiunit recordings was based on the use of various types of features to uniquely characterize action potentials from different cells. We compared classification results obtained using three types of descriptive features: digitized data points, amplitude and duration (time domain) parameters, and fast Fourier transform (FFT) coefficients. Digitized data points used as descriptive features provided good classification success and required minimal computation. Time-domain features gave comparable results but required more computation. FFT coefficients were less effective than the other features. As the signal-to-noise ratio of the recordings increased, smaller differences in feature values could be discriminated.
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