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. Author manuscript; available in PMC: 2020 Jan 16.
Published in final edited form as: IEEE Trans Biomed Circuits Syst. 2018 Jul 16:10.1109/TBCAS.2018.2852267. doi: 10.1109/TBCAS.2018.2852267

Fig. 14.

Fig. 14.

In vivo measurements validating the light-induced neuronal activity: raw signals recorded from an electrode as well as the raster plots of spikes from an optically excited neuron during a pulsed stimulation with (a) 10 μA and (b) 0 μA forward currents, (c) waveform of the action potential during the off- and the on-time of the pulse, and (d) peristimulus time histograms of the neuron at different on-time forward currents. Modified from [20].