Table 3. Correlations between mother infant behavior categories at 4 month.

			Infant			Mother
			g at M	g at toy	vo	g at I	g at toy	vo
Infant	gaze at Mother	Pearson’s r
		P value
	gaze at toy	r	−0.606
		P	<0.001
	vocalization	r	0.332	−0.389
		P	0.002	<0.001
Mother	gaze at Infant	r	0.068	0.088	0.069
		P	0.547	0.432	0.538
	gaze at toy	r	−0.273	0.589	−0.400	−0.233
		P	0.013	<0.001	<0.001	0.035
	vocalization	r	0.187	0.047	0.145	0.146	0.125
		P	0.093	0.676	0.194	0.191	0.262

□ = Significant correlation related to the dyad and triad scheme of Mother-Infant interaction (r > 0, P < 0.01).