Fig. 4. Slow-wave and spike-burst activity recorded during segmental contractions. (A) Spatiotemporal transverse strain map shows the segmental contractions and relaxations observed in the intestine. (B, C) Activation maps of the spike-burst and slow-wave activity just prior to the segmental contraction is marked by the white square in (A). The shaded area represents the position of the intestine on the electrode array. (D) The electrical signal traces from a row of electrodes with slow-wave events marked as red crosses. The region activated by the circumferential spike-burst patch in B underwent contraction as shown by the white square in (A). These spike-bursts and the corresponding contractions did not show a connection to the underlying slow-waves as seen in D. The spatiotemporal activation of slow-waves and spike-bursts during segmental contraction is shown in video form in
Supplementary Video 1.
