. 2016 Feb 24;115(4):2105–2123. doi: 10.1152/jn.00634.2015

Table 2.

Results from area 3b compared with area 3a and statistical significance from samples of 3a and 3b combined

Group	Measure or Subtype	Variables to Compare	Mean (SD) Area 3b	n Area 3b	Mean (SD) Area 3a	n Area 3a	Statistic Area 3b	P Area 3b	P Areas 3a + 3b
E-I	Suppression latency	SU	33 (12)	223	81 (30)	10	Z = −2.95	0.003^*	0.002^*
E-I	Suppression latency	MU	36 (13)	682	70 (28)	33	Z = −2.95	0.003^*	0.002^*
E-I	Duration	SU	49 (32)	223	60 (28)	10	Z = −3.38	0.001^*	3.3 × 10⁻¹²^*
E-I	Duration	MU	43 (33)	682	28 (19)	33	Z = −3.38	0.001^*	3.3 × 10⁻¹²^*
I	Suppression latency	SU	20 (14)	150	18 (15)	41	Z = −5.64	1.7 × 10⁻⁸^*	8.6 × 10⁻⁵^*
I	Suppression latency	MU	25 (12)	209	27 (18)	14	Z = −5.64	1.7 × 10⁻⁸^*	8.6 × 10⁻⁵^*
I	Duration	SU	33 (24)	150	83 (66)	41	Z = −0.57	0.57	0.083
I	Duration	MU	42 (38)	209	23 (14)	14	Z = −0.57	0.57	0.083
SU	Suppression latency	E-I	33 (12)	223	81 (30)	10	Z = −10.96	6.2 × 10⁻²⁸^*	8.2 × 10⁻³⁵^*
SU	Suppression latency	I	20 (14)	150	18 (15)	41	Z = −10.96	6.2 × 10⁻²⁸^*	8.2 × 10⁻³⁵^*
SU	Duration	E-I	49 (32)	223	45 (28)	10	Z = −5.46	4.7 × 10⁻⁸^*	3.1 × 10⁻⁴^*
SU	Duration	I	33 (24)	150	83 (66)	41	Z = −5.46	4.7 × 10⁻⁸^*	3.1 × 10⁻⁴^*
SU	Excitation latency	E	9 (15)	295	18 (2)	18	Z = −0.71	0.48	0.16
SU	Excitation latency	E-I	13 (29)	223	19 (6)	10	Z = −0.71	0.48	0.16
SU	Latency of excitation/suppression	E	18 (8)	294	18 (2)	18	χ² = 1.19	0.55	0.47
		E-I	17 (7)	223	19 (6)	10
		I	20 (14)	150	18 (15)	41
SU	Excitation peak firing	E	64 (92)	294	24 (21)	18	Z = −5.53	3.2 × 10⁻⁸^*	6.3 × 10⁻⁹^*
SU	Excitation peak firing	E-I	79 (74)	223	30 (18)	10	Z = −5.53	3.2 × 10⁻⁸^*	6.3 × 10⁻⁹^*
SU	E-I and I	Latency	–	373	–	51	ρ = 0.27	1.4 × 10⁻⁷^*	3.2 × 10⁻⁴^*
SU	E-I and I	Duration	–	373	–	51	ρ = 0.27	1.4 × 10⁻⁷^*	3.2 × 10⁻⁴^*
SU	E-I and I	Latency	–	387	–	51	ρ = 0.15	0.003^*	4.2 × 10⁻⁴^*
SU	E-I and I	Peak firing	–	387	–	51	ρ = 0.15	0.003^*	4.2 × 10⁻⁴^*
SU	E-I and I	Duration	–	373	–	51	ρ = 0.25	1.3 × 10⁻⁶^*	0.088
SU	E-I and I	Peak firing	–	387	–	51	ρ = 0.25	1.3 × 10⁻⁶^*	0.088
SU	E, E-I, and I	Latency	–	339	–	51	ρ = −0.18	0.001^*	0.001^*
SU	E, E-I, and I	Background firing	–	757	–	51	ρ = −0.18	0.001^*	0.001^*
SU	E-I and I	Location	–	379	–	51	ρ = −0.20	6.0 × 10⁻⁴^*	0.001^*
SU	E-I and I	Duration	–	379	–	51	ρ = −0.20	6.0 × 10⁻⁴^*	0.001^*
SU	E-I and I	Location	–	379	–	51	ρ = −0.11	0.034^*	0.001^*
SU	E-I and I	Latency	–	379	–	51	ρ = −0.11	0.034^*	0.001^*
SU	E	Occurrences	–	282	–	18	ρ = −0.979	4.3 × 10⁻⁶^*	1.8 × 10⁻⁷^*
SU	E	Location	–	282	–	18	ρ = −0.979	4.3 × 10⁻⁶^*	1.8 × 10⁻⁷^*
SU	E-I	Occurrences	–	220	–	10	ρ = −0.937	1.9 × 10⁻⁴^*	1.5 × 10⁻⁸^*
SU	E-I	Location	–	220	–	10	ρ = −0.937	1.9 × 10⁻⁴^*	1.5 × 10⁻⁸^*
SU	I	Occurrences	–	107	–	41	ρ = −0.402	0.284	0.381
SU	I	Location	–	107	–	41	ρ = −0.402	0.284	0.381
SU	NS	Occurrences	–	129	–	1	ρ = −0.452	0.222	0.203
SU	NS	Location	–	129	–	1	ρ = −0.452	0.222	0.203
SU	Response types (E, E-I, I, and NS)	Occurrences < median	–	120	–	70	χ² = 46.49	4.5 × 10⁻¹⁰^*	1.5 × 10⁻⁷^*
SU	Response types (E, E-I, I, and NS)	Location	–	120	–	70	χ² = 46.49	4.5 × 10⁻¹⁰^*	1.5 × 10⁻⁷^*

Results from area 3b recordings in anesthetized primates summarized and compared with P values (

P < 0.05) reported in results (of areas 3a and 3b analyzed together). Data from area 3a in an unanesthetized galago are listed; statistics not calculated on this small subset. Mean and SD reported for pair-wise comparisons in units of milliseconds (latency, duration) or spikes/second (peak firing). Means are not reported for Spearman's ρ correlation analysis and the nonparametric median test. E-I, excitatory-inhibitory; I, inhibitory; E, excitatory; NS, no significant firing change.