Wavelet filtering before spike detection preserves waveform shape and enhances single-unit discrimination.
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ABSTRACT:
SUBMITTER: Wiltschko AB
PROVIDER: S-EPMC2602872 | biostudies-literature | 2008 Aug
REPOSITORIES: biostudies-literature
Publications
Wavelet filtering before spike detection preserves waveform shape and enhances single-unit discrimination.
Wiltschko Alexander B AB Gage Gregory J GJ Berke Joshua D JD
Journal of neuroscience methods 20080528 1
The isolation of single units in extracellular recordings involves filtering. Removing lower frequencies allows a constant threshold to be applied in order to identify and extract action potential events. However, standard methods such as Butterworth bandpass filtering perform this frequency excision at a cost of grossly distorting waveform shapes. Here, we apply wavelet decomposition and reconstruction as a filter for electrophysiology data and demonstrate its ability to better preserve spike s ...[more]
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