Tonic RGCs | Phasic RGCs | Difference | |
---|---|---|---|
Percentage of total 84 RGCs | 28.6 (n = 24) | 56.0 (n = 47) | N/A |
Erest (mV, mean ± SE) | −64.9 ± 1.6 (n = 24) | −67.4 ± 1.2 (n = 47) | >0.05* |
Rinput (GΩ, median) | 0.56 (n = 18) | 0.29 (n = 41) | <0.01† |
Slope parameter (mean ± SE) | 1.03 ± 0.14 (n = 20) | 2.45 ± 0.34 (n = 30) | N/A |
Cm (pF, median) | 10.6 (n = 24) | 14.2 (n = 47) | <0.05† |
Cross-sectional soma area (μm2, median) | 218 (n = 23) | 226 (n = 44) | <0.05† |
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Slope parameter is a parameter characterizing the shape of the sigmoid function fitted to the firing frequency–stimulus intensity (F–I) relation (see results for further explanation; cf. Fig. 4). Erest, resting membrane potential; Rinput, input resistance; Cm, membrane capacitance.
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↵* P value obtained by unpairedt-test,
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↵† P values obtained by Wilcoxon/Kruskal-Wallis rank sum test.