Research Article

A Low-Noise, Modular, and Versatile Analog Front-End Intended for Processing In Vitro Neuronal Signals Detected by Microelectrode Arrays

Figure 12

Continuous 5-hour signals collected from two different channels of the MEA recording reported in Figure 11. (a) Raw voltage signal collected by a spiking channel (i.e., extracellular spikes superimposed to biological, electrode, and electronics noise). (b) Raw voltage signal collected by a silent channel (i.e., biological, electrode, and electronics noise).
(a)
(b)