Figure 6. Rasterplots and peri-stimulus time histograms (PSTH) of time-locked elicited spikes after stimulation at different frequencies (5, 10, 20 and 40 Hz) with a pulse width of 5 ms.

The blue lines indicate light ON. Inset on top right shows the location of the recorded contact (orange) and stimulated optrode (blue) on the MEOA. Bin size of PSTH’s was 5 ms.