Table 2.

Values for 15 electrophysiological parameters analyzed for each neuron

	All (n = 150)	X94 (n = 58)	X98 (n = 59)	GIN (n = 33)
Vrest(mV)
η2	0.05
p value	0.0230
10%	−72.5	−73.2	−72.3	−69.8
90%	−63.9	−64.6	−63.7	−64.7
Mean	−68.3	−69.1	−68.2	−67.1
CV	0.05	0.05	0.05	0.04
Threshold (mV)
η2	0.02
pvalue	0.2420
10%	−47.5	−47.4	−48.4	−47.2
90%	−38.3	−37.9	−37.4	−40.5
Mean	−43.0	−42.8	−42.6	−44.0
CV	0.10	0.11	0.10	0.06
Spike height (mV)
η2	0.06
pvalue	0.0120
10%	51.7	51.0	53.0	48.1
90%	71.8	70.1	73.5	69.3
Mean	60.9	60.3	63.0	58.1
CV	0.13	0.12	0.12	0.13
Sag–V slope
η2	0.01
pvalue	0.5240
10%	−0.41	−0.42	−0.40	−0.38
90%	−0.19	−0.19	−0.19	−0.22
Mean	−0.30	−0.31	−0.29	−0.30
CV	0.30	0.33	0.28	0.27
Adaptation ratio
η2	0.04
pvalue	0.0620
10%	0.39	0.41	0.36	0.41
90%	0.71	0.77	0.68	0.63
Mean	0.54	0.57	0.51	0.54
CV	0.23	0.25	0.23	0.18
F–I slope (Hz/pA)
η2	0.06
pvalue	0.0071
10%	0.47	0.53	0.40	0.55
90%	1.12	1.26	0.98	0.81
Mean	0.74	0.82	0.68	0.71
CV	0.35	0.34	0.39	0.25
Rin (MΩ)
η2	0.55
p value	0.0000
10%	92	73	304	149
90%	602	218	796	403
Mean	316	132	514	282
CV	0.73	0.43	0.44	0.39
τm (ms)
η2	0.66
pvalue	0.0000
10%	7.2	6.0	24.1	12.5
90%	41.4	17.3	47.2	33.9
Mean	22.2	9.9	35.0	20.9
CV	0.62	0.42	0.29	0.41
Rheobase (pA)
η2	0.63
p value	0.0000
10%	11	77	7	13
90%	266	331	57	90
Mean	100	202	27	51
CV	1.03	0.47	0.78	0.59
Rate of rise (V/s)
η2	0.38
pvalue	0.0000
10%	161	217	137	181
90%	293	307	241	295
Mean	227	261	191	232
CV	0.22	0.14	0.22	0.19
Rate of fall (V/s)
η2	0.59
pvalue	0.0000
10%	−183	−201	−122	−164
90%	−89	−130	−79	−103
Mean	−133	−166	−101	−132
CV	0.28	0.17	0.20	0.17
Spike width (ms)
η2	0.72
pvalue	0.0000
10%	0.42	0.38	0.62	0.48
90%	0.79	0.50	0.86	0.63
Mean	0.58	0.45	0.74	0.55
CV	0.27	0.13	0.16	0.10
Fmax, steady-state (Hz)
η2	0.57
p value	0.0000
10%	49	106	41	80
90%	175	201	103	148
Mean	113	152	69	120
CV	0.44	0.26	0.33	0.26
Fmax, initial (Hz)
η2	0.67
pvalue	0.0000
10%	106	201	86	180
90%	304	343	188	265
Mean	206	270	135	221
CV	0.36	0.19	0.27	0.18
AHP (mV)
η2	0.16
pvalue	0.0000
10%	13.7	13.2	15.8	13.9
90%	23.3	23.0	24.1	19.8
Mean	18.3	17.5	20.2	16.5
CV	0.21	0.23	0.18	0.15

The 10th and 90th percentiles, mean, and CV are indicated for each parameter. Also indicated for each parameter are its η ² and the p value of η ². The nine parameters in boldface had η ² > 0.1 and p values lower than our computational limit of p = 0.0001 (probably by several orders of magnitude). All parameters are defined in Materials and Methods.