Monitoring Effective Connectivity in the Preterm Brain: A Graph Approach to Study Maturation

Table 4

Multivariate regression model performances. The table shows the error on the test set (Error), and the -statistics (-stat), and the value obtained with the different connectivity methods in the different sleep states. The results are reported as median (IQR), where IQR stands for InterQuartile Range over the 100 random splits of the dataset. The labels reported are TE = transfer entropy, GC = Granger causality, QS = quiet sleep, and NQS = nonquiet sleep.

Multivariate regression performances
Median (IQR)	Error (weeks)		-stat	value
Simple filtering
TE, QS	2.54 (0.41)	0.57 (0.07)	11.64 (3.46)
TE, NQS	2.88 (0.39)	0.40 (0.07)	6.23 (1.72)
GC, QS	2.52 (0.37)	0.52 (0.07)	10.01 (2.64)
GC, NQS	2.79 (0.53)	0.44 (0.07)	7.20 (2.09)
CCA
TE, QS	2.23 (0.29)	0.63 (0.06)	12.90 (3.14)
TE, NQS	2.54 (0.51)	0.57 (0.06)	10.36 (2.66)
GC, QS	2.10 (0.38)	0.67 (0.05)	15.96 (3.64)
GC, NQS	2.35 (0.42)	0.63 (0.04)	13.38 (2.61)