Figure 4.

Distribution of 5 electrical activity reaction types along the examined gastrointestinal (GI) parts. Multilocular electrical stimulation was performed in the GI tract. According to the electromyography analysis of 3 minutes post-stimulation, 5 electrical activity reaction types could be differentiated by the spike count patterns. Type I is a fast response to ES with a significant increase in the first minute, followed by decreasing spike activity from 2 to 3 minutes. Type II is a slow response pattern with a distinct increase in the first minute and further increase in spike frequency from 2 to 3 minutes. Type III is an intermediate short response with a maximum spike count in the second minute and decreasing spike activity in the third minute. Mixed type response patterns, classified as type X reaction, include all changes in spike count patterns in the post-stimulatory period that do not fit into type I to III reactions. Reaction patterns without significant differences from baseline electrical activity are considered type 0 reaction types. The percentages of reaction patterns were calculated separately for the gastric, duodenal, jejunal, ileal, and colonic groups.