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. Author manuscript; available in PMC: 2011 May 7.
Published in final edited form as: Comput Biol Med. 2008 Oct 11;38(11-12):1140–1151. doi: 10.1016/j.compbiomed.2008.08.010

Fig. 6.

Fig. 6

Amplified long duration Jspon can produce late-coupled DADs and DAD-triggered APs exhibiting EADs. (A) Jspon conductance is increased in the low amplitude, long duration case to produce a Jspon event with long duration and amplitude approximately 47% between the low and high amplitude cases. A single Jspon event starting in late diatole elicits an overt DAD that is interrupted by the subsequent paced AP (the pacing stimulus, applied 0.083 s after the Jspon onset, is delayed by 75 ms from the normal cycle length to make the DAD more evident). This Jspon event also produces an early EAD on the AP. (B) Jspon conductance increased further to produce a long duration Jspon event with amplitude approximately 52% between the low and high amplitude cases. A single Jspon event starting in late diastole elicits a suprathreshold DAD that triggers an AP. This Jspon event also produces an early EAD on the triggered AP.