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. 2017 May 30;11:309. doi: 10.3389/fnins.2017.00309

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Copyright © 2017 Li, Liu, Ji, Li and Shi.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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A Fourier analysis showing the impact of LCD screen refresh rate. (A) Top shows the timestamp sequence spectrum of the recorded AER events with a clear peak at 60 Hz. The mean inter-spike difference is 3.20 us and standard deviation is 5.24 us. Bottom shows the firing rate curve of the event stream. (B) Top shows the spectrum of the same recording after readjusting the timestamps to remove the 60 Hz peak. Timestamps are generated randomly with the same mean inter-spike time difference and standard deviation as in (A).