Table 1.

Mean and SE of selected parameters used in the cluster analysis

Electrical parameters				Morphological parameters
	SL-like	SP-like	p		SL-like	SP-like	p
Resting potential (mV)	−67.2 ± 0.7	−76.3 ± 0.7	<0.001	Soma cross-sectional area (μm²)	268 ± 7	315 ± 9	<0.001
Input resistance (MΩ)	221.2 ± 15.2	55.0 ± 3.5	<0.001	n apical dendrites at soma	2.68 ± 0.12	1.41 ± 0.13	<0.001
Membrane time constant (ms)	26.0 ± 1.7	10.1 ± 0.7	<0.001	n basal dendrites at soma	2.15 ± 0.32	5.96 ± 0.38	<0.001
Sag	0.91 ± 0.01	0.93 ± 0.01	0.22	Total length of apical dendrites (μm)	2594 ± 83	3646 ± 142	<0.001
Action potential threshold (mV)	−36.0 ± 0.5	−41.5 ± 0.6	<0.001	Total length of basal dendrites (μm)	448 ± 84	2022 ± 159	<0.001
Action potential halfwidth (ms)	0.74 ± 0.01	0.76 ± 0.01	0.29	n apical dendritic branch points	13.0 ± 0.5	18.5 ± 0.9	<0.001
Action potential height (mV)	76.2 ± 1.1	92.9 ± 0.9	<0.001	n basal dendritic branch points	1.5 ± 0.3	8.6 ± 0.8	<0.001

Values were calculated for cells in the SL-like cluster (n = 34) and the SP-like cluster (n = 27) in Fig. 1D, as described in Materials and Methods. The p values indicate that sag and action potential half widths do not provide a distinction between SL-like and SP-like cells, but all the other parameters listed here do support a clear distinction, on average.