Table 1. Latencies and incidence of short latency EPSPs and IPSPs evoked in the analysed motoneurons.

Vertical columns 1-10, Origin and category of the analysed PSPs and effects of stimulation the contralateral and ipsilateral PT and of the MLF upon them in preparations with the spinal cord intact, after lesions of the dorsolateral part of the ipsilateral lateral funiculus (DLF), the whole lateral funiculus (LF) and both the lateral and ventral funiculi (hemisection). Horizontal rows 1-7, Latencies (means and SEM) and incidence of EPSPs and IPSPs evoked from the contralateral and ipsilateral PT and from the MLF. Horizontal rows 8-19 in columns 3, 5, 7, 9 and 11, Comparisons of latencies and incidence of EPSPs and IPSPs and of those evoked from the coPT, iPT and MLF. Statistically significant differences are indicated by * (p<0.05), ** (p 0.001-0.01) and *** (p<0.001), non statistically significant differences by ns; t-tests for paired two samples (when the number of pairs allowed such test) by p. Horizontal rows 8-19 in columns 4, 6, 8, 10 and 12, Differences in incidence (% of motoneurons) in the same combinations.

	origin of PSPs	PSP	intact (N=50)		DLF lesion (N=8)		LF lesion (N=35)		i hemisection (N=21)		co hemisection (N=11)
			latency	%	latency	%	latency	%	latency	%	latency	%
	1	2	3	4	5	6	7	8	9 vs intact	10	11 vs intact	12
1	contralateral PT	EPSPs	4.50 ± 0.03	78	4.39 ± 0.04	75	4.57 ± 0.05	86	4.59 ± 0.08 ns	76	4.18 ± 0.07 ***	100
2		IPSPs	5.57 ± 0.12	42	6.23 ± 0.47	50	5.70 ± 0.06	60	5.62 ± 0.07 ns	62	5.52 ± 0.48 ns	27
3	ipsilateral PT	EPSPs	4.65 ± 0.05	60	4.30 ± 0.03	75	4.72 ± 0.04	66	4.76 ± 0.08 ns	42	4.32 ± 0.11 **	100
4		IPSPs	5.33 ± 0.29	44	5.49 ± 0.14	50	5.72 ± 0.10	35	5.55 ± 0.10 ns	62	5.70 ± 0.19 ns	27
5	MLF mono	EPSPs	2.99 ± 0.03	52	2.93 ± 0.03	50	3.21 ± 0.06	6	3.31 ± 0.59	19?	2.87 ± 0.03 *	73
6	MLF dis	EPSPs	3.54 ± 0.07	42	3.46 ± 0.1	13	3.44 ± 0.03	71	3.36 ± 0.04 ns	66	3.37 ± 0.07 ns	45
7		IPSPs	3.63 ± 0.04	72	3.88 ± 0.42	25	3.60 ± 0.13	9	3.60 ± 0.13 ns	14	3.61 ± 0.44 ns	27
8	co PT - i PT	EPSPs	-0.15 ** p	18	0.09 *p	0	-0.15 **p	20	-0.17 *p	34	-0.1 ns	0
9	co PT - i PT	IPSPs	0.23 ns p	-2	0.74 ns	0	-0.02 ns p	25	0.07 ns p	0	-0.2 *	0
10	co PT	IPSPs-EPSPs	1.07 ***	-36	1.84	-25	1.12	-26	1.03 ***	-14	0.92 ***	-73
11	i PT	IPSPs-EPSPs	0.68 **	-16	1.19	-25	1.00	-31	0.79 ***	20	1.21 ***	-73
12	MLF d - m	EPSPs	0.55 ***	-10	0.54	-37	0.23	65			0.5 ***	-28
13	MLF d	IPSPs-EPSPs	0.09 ns	30	0.42	12	0.17	-62	0.24 ***	-52	0.27 *	-18
14	co PT - MLF m	EPSPs	1.51 ***	26	1.46	25	1.36	80			1.37 ***	27
15	co PT - MLF d	EPSPs	0.96 ***	36	0.93	62	1.14	15	1.23 ***	10	0.87 ***	-55
16	i PT - MLF m	EPSPs	1.67 ***	8	1.37	25	1.51	60			1.61 ***	27
17	i PT - MLF d	EPSPs	1.11 ***	18	0.84	62	1.28	-5	1.40 ***	-24	1.12 ***	-55
18	co PT - MLFd	IPSPs	1.94 ***	-30	2.35	25	2.09	51	2.02 ***	48	1.55 *	0
19	i PT- MLFd	IPSPs	1.70 ***	-28	1.61	25	2.11	26	1.95 ***	48	2.09 *	0