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. Author manuscript; available in PMC: 2010 Jul 31.
Published in final edited form as: J Mol Biol. 2009 May 27;390(5):902–912. doi: 10.1016/j.jmb.2009.05.062

Figure 2. The accumulation of inactivation between pulses follows a geometric series.

Figure 2

A, Repetitive pulse from holding voltage −120 mV to +100 mV. Accumulation of inactivation can be seen between pulses as a fractional decrease in current that is larger than the inactivation that occurred during the previous pulse. B, The fractional decrease in peak current (mean In/I0 ± s.e.m, n = 5) during depolarization as function of number of pulses (n) can be fitted to a geometric progression In/I0 = A n with A = 0.302 ± 0.01.