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|Title:||What is the real shape of extracellular spikes?|
|Authors:||Quian Quiroga R|
|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.|
|Appears in Collections:||Published Articles, Dept. of Engineering|
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