Figure 6. Membrane voltage, corrected for series resistance. (A) Recorded current pulse during the train in Fig. 5. (B) Detail of R/R0 and Vm from the plots in Fig. 5 C, at an expanded time scale, to show the systematic difference between electric and optical records. (C) R/R0 plot from B (black) and the sum (Vm corrected) of Vm and Im multiplied by a factor (−5.1 MΩ) that optimizes the overlap. Note the change, introduced to maintain overlap, in the scale of Vm corrected. The ratio of the two vertical scales in C, ∼0.1 (100 mV)−1, is equal to the sensitivity SL.
Figure 6.

Membrane voltage, corrected for series resistance. (A) Recorded current pulse during the train in Fig. 5. (B) Detail of R/R0 and Vm from the plots in Fig. 5 C, at an expanded time scale, to show the systematic difference between electric and optical records. (C) R/R0 plot from B (black) and the sum (Vm corrected) of Vm and Im multiplied by a factor (−5.1 MΩ) that optimizes the overlap. Note the change, introduced to maintain overlap, in the scale of Vm corrected. The ratio of the two vertical scales in C, ∼0.1 (100 mV)−1, is equal to the sensitivity SL.

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