Table 1.

Standardized variance of the membrane potential is increased during the period that a cell receives passively electrotonically transmitted current from the other coupled s.o. interneurone

	Before current pulse (n = 8)	During current pulse (n = 8)
Current injecting cell	0.87 ± 0.4 mV	0.88 ± 0.4 mV
E-coupled cell	0.96 ± 0.4 mV	1.62 ± 0.6 mV**

^**P < 0.05. Note, the area underneath the standard deviation curve, which was calculated from 16–20 sweeps in an individual cell, was analysed before and during the hyperpolarizing current pulse. Because the duration of hyperpolarizing current pulse varied between cells, we standardized the data (area = mV × ms) by dividing by the corresponding time period (ms).