|Isochrones of action potential event times in paced rabbit heart show wave propagation of activation, peak and repolarization. Colors indicating event times rise from blue to red and cover ranges of 72.6, 72.8 and 84.6 ms, respectively. The ?chair? figure identifies an action potential event on the trace inset (for the central pixel of the image) The color bar on the trace indicates membrane potential.|
Provided by Richard A. Gray, Ph.D., of the Cardiac Rhythm Management Laboratory, University of Alabama at Birmingham.