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Use of discrete Hilbert transformation for automatic spike mapping: a methodological investigation

H Witte, M Eiselt, I Patakova, S Petranek, G Griessbach, V Krajca, M Rother

. 1991 ; 29 (3) : 242-248.

Language English Country England, Great Britain

Persistent link   https://www.medvik.cz/link/bmc13015496

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IZ593 MZ0 CEP Register

On the basis of discrete Hilbert transform (DHT) realised by fast Fourier transform (FFT), a new strategy for automatic spike mapping is introduced. The further computation of the EEG time series after DHT results in the time series of the momentary power and the momentary frequency. Both are used for the solution of the main requirements of automatic spike mapping. The spike-mapping concept introduced meets the requirements of efficient automatic spike detection and also has an insensitivity with regard to EMG interference and transient signal components, a frequent cause of false positive detections. Additionally, there are advantages if the momentary power of the spike is mapped instead of the spike potential. The use of momentary power makes a combination of power spectral mapping and spike-mapping strategies possible.

Bibliography, etc.

Literatura

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