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Title: What is the real shape of extracellular spikes?
Authors: Quian Quiroga R
First Published: 15-Feb-2009
Citation: J NEUROSCI METHODS, 2009, 177 (1), pp. 194-198
Abstract: We show that the standard filters used for on-line spike detection in most hardware acquisition systems introduce distortions in the recorded spike shapes. This is because on-line spike detection is done after band pass filtering the data with causal filters. As illustrated with three clusters of spike shapes from a real single cell recording in a human subject, causal filtering can create a spurious negative rebound and a smooth looking appearance of the spikes. We also show that these filtering distortions can make artifacts look similar to real spikes.
DOI Link: 10.1016/j.jneumeth.2008.09.033
ISSN: 0165-0270
Type: Journal Article
Appears in Collections:Published Articles, Dept. of Engineering

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