Table 1.

Statistical tests

CharacteristicF valuep value
Input resistance (MΩ)72.931.0E-15
Time constant, falling (ms)75.862.4E-16
Time constant, rising (ms)76.052.2E-16
Rebound amplitude (mV)25.081.5E-05
Firing threshold (mV)12.266.5E-03
Resting membrane potential (mV)37.264.1E-08
A.P. rise time (ms)57.611.9E-12
A.P. half-width (ms)69.296.1E-15
Spike AHP (mV)16.449.2E-04
F-I gain (Hz/nA)42.623.0E-09
Peak firing rate (Hz)74.604.4E-16
Lowest firing rate (Hz)54.339.6E-12
Rheobase (pA)59.906.2E-13
Adaptation ratio22.016.5E-05
Change in impedance (%)14.422.4E-03
Sag ratio33.512.5E-07
Soma depth (µm)42.383.3E-09
Axonal tree, superficial (µm)29.871.5E-06
Axonal tree, deep (µm)29.771.5E-06
Axonal tree, width (µm)25.091.5E-05
  • All characteristics were tested for normality using the Kolmogorov–Smirnov test, and none were found to be normally distributed. The nonparametric Kruskal--Wallis test was used to compare groups, and the F value and p value for each test is shown.