Table 2.

Spearman's correlations between global motion features and CIB composites for mother-infant dyads at 4 months (N = 19).

4 m	Global motion features	Body part	CIB Composites
			Maternal sensitivity	Maternal intrusiveness	Infant involvement	Infant negative emotionality	Dyadic reciprocity	Dyadic negative states	Parent–led	Child–led
Individual parameters	Infant activity ratio	Upper–body	−0.61 p = 0.01	0.39 p = 0.10	−0.31 p = 0.20	0.46 p = 0.05	−0.32 p = 0.18	0.07 p = 0.79	0.13 p = 0.59	−0.38 p = 0.11
		Arms	−0.54 p = 0.02	0.43 p = 0.07	−0.29 p = 0.23	0.61 p = 0.01	−0.31 p = 0.20	0.29 p = 0.23	0.06 p = 0.79	−0.13p = 0.60
		Head	−0.59 p = 0.01	0.41 p = 0.08	−0.42 p = 0.07	0.44 p = 0.06	−0.36 p = 0.14	0.04 p = 0.86	0.22 p = 0.37	−0.45p = 0.051
	Maternal activity ratio	Upper–body	−0.07 p = 0.78	0.54 p = 0.02	−0.15 p = .55	0.12 p = 0.63	−0.14 p = 0.56	0.09 p = 0.72	0.49 p = 0.03	−0.16 p = 0.51
		Arms	−0.26 p = 0.29	0.62 p = 0.01	–.35 p = .15	0.19 p = 0.44	−0.34 p = 0.16	0.29 p = 0.22	0.66 p = 0.002	−0.19p = 0.44
		Head	0.14 p = 0.56	0.18 p = 0.45	.16 p = 0.53	0.13 p = 0.60	0.22 p = 0.37	−0.31 p = 0.20	0.01 p = 0.95	−0.07p = 0.77
Dyadic parameters	Overlap ratio	Upper–body	−0.39 p = 0.10	0.48 p = 0.04	−0.29 p = 0.23	0.46 p = 0.05	−0.21 p = 0.38	0.13 p = 0.60	0.25 p = 0.31	−0.18p = 0.47
		Arms	−0.44 p = 0.06	0.50 p = 0.03	−0.35 p = 0.14	0.52 p = 0.02	−0.30 p = 0.21	0.33 p = 0.17	0.33 p = 0.17	−0.09p = 0.72
		Head	−0.29 p = 0.23	0.36 p = 0.13	−0.14 p = 0.58	0.28 p = 0.24	−0.06 p = 0.81	−0.12 p = 0.61	0.16 p = 0.52	−0.27p = 0.27
	Silence ratio	Upper–body	0.56 p = 0.01	−0.55 p = 0.01	0.34 p = 0.16	−0.34 p = 0.15	0.42 p = 0.08	−0.12 p = 0.64	−0.41 p = 0.08	0.53p = 0.02
		Arms	0.55 p = 0.02	−0.62 p = 0.01	0.45 p = 0.054	–0.46 p = 0.05	0.52 p = 0.02	−0.40 p = 0.09	−0.48 p = 0.04	0.31p = 0.19
		Head	0.37 p = 0.13	−0.37 p = 0.12	0.12 p = 0.63	−0.40 p = 0.09	0.14 p = 0.56	0.24 p = 0.33	−0.14 p = 0.58	0.46 p = 0.05

Color indicates that the correlation is statistically significant at the 0.05 level (2-tailed).