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. 2017 May 17;8:15448. doi: 10.1038/ncomms15448

Figure 3. Global input as a global clock.

Figure 3

(a,b) Periodic modulation of the output caused by a train of voltage pulses (amplitude of 100 mV, width of 50 ms, period of 5 s) at a local input, and a sine wave (amplitude of ±600 mV, frequency of 1 mHz) at the global input, shown here for a full period (a) and for the positive half of the cycle (b). (c) Global input with higher harmonics (amplitude modulation of a sine wave of frequency of 1 Hz, amplitude of 180 mV and offset of 700 mV, with a second sine wave of frequency of 3 Hz, AM depth of 120%), and a train of voltage pulses (amplitude of 100 mV, width of 50 ms, period of 100 ms) at local input results to an output that contains predominantly the low-frequency components of the global input. (d) Power spectra of G, Ii and Oi.