Fig. 1: Simultaneous video imaging and electrophysiological recordings from smooth muscle in isolated mouse colon. | Communications Biology

Fig. 1: Simultaneous video imaging and electrophysiological recordings from smooth muscle in isolated mouse colon.

From: Long range synchronization within the enteric nervous system underlies propulsion along the large intestine in mice

Fig. 1

a shows a photomicrograph of the isolated colon and location of two independent extracellular recording electrodes, separated by 1 mm in the mid colon. b spatio-temporal map with superimposed simultaneous electrical recordings (red:proximal and blue:distal) both taken from the mid colon. The white band propagating from the proximal to distal colon indicates the propulsive contraction that underlies the propulsion of fluid aborally (see Supplementary Movie 1). c shows the raw electrical recordings superimposed. d Wavelet coherence showing a peak frequency at ~2 Hz (see yellow band). e shows the relative time difference between the two independent electrical recordings. There is a very small temporal difference between EJPs occurring at both recording sites. fi shows the two electrical recordings superimposed on expanded scale, taken from the period represented by the dotted line in e. fii shows the recordings from fi on further expanded scale where the temporal coordination of EJPs at both recording sites is apparent.

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