Fig. 5. Slow-wave and spike-burst activity during spontaneous peristaltic contractions. (A) Spatiotemporal transverse strain map recorded during spontaneous peristaltic contractions. The spontaneous activation and propagation of these peristaltic contractions are indicated with arrows. Segmental contractions are indicated with rectangles. (B, C) Activation maps of spike-burst and slow-wave activity during the peristaltic contraction indicated by the white arrow in (A). The shaded area represents the position of the intestine on the electrode array. The black rectangle in (B) indicates the field of view of the camera. (D) Electrical signal traces from a row of electrodes with slow-wave events marked as red crosses. The white arrows indicate the propagating spike-bursts shown in (B) and the black arrows indicate the slow-wave propagation shown in (C). The spontaneous peristaltic contraction was caused by longitudinally propagating circumferential spike-burst patches as indicated by the white arrows. These peristaltic contractions and the spike-bursts did not show any connection to the slow-wave activity as seen in (D). The spatiotemporal activation of slow-waves and spike-bursts during spontaneous peristalsis is shown in video form in
Supplementary Video 2.
© J Neurogastroenterol Motil
