Table 1. Comparisons of the granger causality of the original and the reduced dimensionality at WMBS and WMS^a.

	Nb	Original dimensionality		Reduced dimensionality
		WMBS	WMS	WMBS	WMS
Rat 1	26	0.0156±0.0030	0.0233±0.0026**	0.0225±0.0062	0.0308±0.0046*/▵
Rat 2	20	0.0048±0.0011	0.0083±0.0012*	0.0112±0.0022▵▵	0.0310±0.0053**/▵▵
Rat 3	28	0.0093±0.0019	0.0183±0.0029*	0.0196±0.0046▵▵	0.0410±0.0067**/▵▵
Rat 4	36	0.0054±0.0012	0.0113±0.0038	0.0105±.00185▵▵	0.0271±0.0027**/▵▵
Rat 5	28	0.0115±0.0059	0.0235±0.0162	0.0134±0.0038	0.0507±0.0155**/▵
Rat 6	22	0.0125±0.0017	0.0189±0.0024*	0.0203±0.0051	0.0329±0.0062*/▵

^aThe values are the mean ± SEM of the average granger causality values of each rats (paired sample t test).

^bTotal number of the compared groups.

* p<0.05 compared to the granger causality values at the WMBS in the original dimensionality or the reduced dimensionality.

** p<0.01 compared to the granger causality values at the WMBS in the original dimensionality or the reduced dimensionality.

^▵p<0.05 compared to the granger causality values of the original dimensionality at the WMBS or at the WMS.

^▵▵p<0.01 compared to the granger causality values of the original dimensionality at the WMBS or at the WMS.