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. Author manuscript; available in PMC: 2010 Feb 9.
Published in final edited form as: Lab Chip. 2009 Apr 8;9(14):2036. doi: 10.1039/b820596e

Fig. 6.

Fig. 6

Spike raster plot for one device at 20 DIV. Each dot represents one action potential (spike) and each line depicts the activity from a single electrode. The plot shows widespread activity on all electrodes on all layers. Lines on a layer that are a similar color denote channels that have physical proximity within the device.