Table 1.

Average spontaneous (sIPSC) peak amplitudes and frequencies measured under different inhibitory conditions

Inhibition	Dark-Adapted, pA	+SKF, pA	Dark-Adapted, pA	Light-Adapted, pA	Dark-Adapted, Hz	+SKF, Hz	Dark-Adapted, Hz	Light-Adapted, Hz
Total inhibition	26.9 ± 5.5	17.5 ± 4.6*	23.2 ± 3.8	17.1 ± 2.3*	11.5 ± 5.8	3.2 ± 1.6*	17.0 ± 5.5	10.4 ± 3.4*
Isolated GABA	9.4 ± 1.3	9.4 ± 1.2	7.8 ± 1.2	0 ± 0	5.5 ± 4.3	0.8 ± 0.4*	0.7 ± 0.5	0 ± 0
Isolated glycine	21.4 ± 4.7	9.8 ± 1.8*	23.0 ± 5.3	17.9 ± 3.6*	9.3 ± 4.9	6.0 ± 3.6*	16.5 ± 7.3	13.3 ± 5.9*
Isolated glycine mIPSC	8.4 ± 1.9	7.5 ± 1.7	n.m.	n.m.	3.3 ± 1.8	2.7 ± 1.7*	n.m.	n.m.

Values are means ± SE. There were no significant differences between dark-adapted averages of SKF38393 (SKF) and light adaptation experiments. Italics indicate raw data that were adapted from Mazade and Eggers (2013) and used to compare SKF and light-adapted conditions. Value of 0 means that all spontaneous inhibitory postsynaptic currents (sIPSCs) were abolished in the given condition.

^*Values that are significantly different when normalized to dark-adapted values for each cell (Wilcoxon tests). Exact P values are given in the text. mIPSC, miniature inhibitory postsynaptic current; n.m., not measured.