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. Author manuscript; available in PMC: 2013 May 28.
Published in final edited form as: Conf Proc IEEE Eng Med Biol Soc. 2009;2009:634–637. doi: 10.1109/IEMBS.2009.5333722

Fig. 1.

Fig. 1

Energy-optimal stimulation waveforms determined with a genetic algorithm for different PWs: 0.02, 0.05, 0.1, 0.2, and 0.5 ms (a–e, respectively). f) Waveforms for PW = 1 and 2 ms combined. For PW ≥ 0.5 ms, the peaks of the waveforms were aligned and leading/trailing tails of low amplitude were excluded for plotting. Curves within the gray regions represent the means of the resulting waveforms across 5 trials, and the upper and lower curves define 95% confidence intervals.