Table 7.

Correlations between electrophysiological variables and the first 2 principal components of the 36-cells electrophysiology variables dataset.

	PC1	PC2
Resting membrane potential (mV)	0.279283	−0.713146
AP1 Amplitude (mV)	−0.619046	0.700534
AP1 duration(ms)	0.966063	0.149507
AP1 half-width (ms)	0.989002	0.055855
AP1 rise time(ms)	0.934992	0.169495
AP1 fall time(ms)	0.949161	0.142030
AP2 Amplitude(mV)	−0.620920	0.654053
AP2 duration(ms)	0.929245	0.324156
AP2 half-width(ms)	0.942784	0.237551
AP2 rise time(ms)	0.870369	0.269250
AP2 fall time(ms)	0.908103	0.323843
AP Drop(mV)	−0.348181	0.606961
Spike frequency adaptation	−0.412130	0.517381
Input resistance (MΩ)	0.387743	−0.214216

Correlations > 0.7 are highlighted in red. These 2 principal components were retained for cluster analysis.