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. Author manuscript; available in PMC: 2014 Sep 20.
Published in final edited form as: IEEE Trans Biomed Eng. 2009 Jul 28;56(12):2755–2761. doi: 10.1109/TBME.2009.2027690

Fig. 2.

Fig. 2

(a) Placement of the PCB electrodes. The “+” and “−” represent the location of the positive and negative leads of the stimulator, respectively. (b) Bipolar stimulus was used. The amplitude (I) for all stimulation trials was 2 mA and the pulse width (Pw) was 400 ms. This protocol was selected based on protocols that have previously been shown to successfully entrain gastric slow waves [20]. The frequency (f) of stimulation was 3.5 cpm (one pulse per 17 s).

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