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. Author manuscript; available in PMC: 2013 Apr 12.
Published in final edited form as: Neuron. 2012 Apr 12;74(1):193–205. doi: 10.1016/j.neuron.2012.01.032

Figure 1.

Figure 1

Experimental paradigm and spike waveform clustering. (A) Passive fixation task during which 10 stimuli were presented for 200 ms each with a 50 ms interstimulus interval. Familiar and novel stimuli were interleaved. (B) All recorded spike waveforms, aligned by their troughs and labeled according to their cluster membership. (C) Distribution of spike widths (trough-to-peak durations) and the two clusters that emerged from the k-means algorithm. The bars above the distributions show mean ± SD of the respective distributions.