Vasopressin and parental expressed emotion in the transition to fatherhood

Figures & data

Table 1. Spearman correlations between the Five Minute Speech Sample variables and Positive and Negative Affect Schedule (PANAS) measured in the placebo, vasopressin, and postnatal condition

FMSS	Positive affect PL	Negative affect PL	Positive affect AVP	Negative affect AVP	Positive affect post	Negative affect post
Positive comments	.01	.15	−.18	−.18	−.01	−.19
Critical comments	.01	−.33	−.13	−.01	−.08	.15

Table 2. Pearson correlations between the Five Minute Speech Sample variables measured in the placebo prenatal and postnatal condition and demographics

FMSS	Age	Education	Pregnancy duration	Age of child
Positive comments	−.05	.23	−.22	.35
Critical comments	.27	.20	.36	.16
Subjectivity	−.41*	−.01	−.18	.63**
Polarity	−.29	−.09	−.14	.25
Intensity SD	−.04	−.15	.20	−.06
F0 median	−.34	.13	−.21	.20
F0 SD	.46*	.10	.28	.09
F1 median	−.35	−.04	−.17	.13
Spectral slope	.56**	.20	−.09	−.27
Speak rate	.03	.35	−.22	−.11

Correlations between FMSS variables and participant age, education, and pregnancy duration in the prenatal placebo condition, and age of child in the postnatal session. Spearman correlations did not differ from the Pearson correlations shown above. *p < 0.05, **p < 0.01.

Table 3. The effect of vasopressin administration on Five Minute Speech Sample parameters

		Mean (SD) PL	Mean (SD) AVP	Test statistic parametric	p-value	Effect size (d)	Test statistic non-parametric	p-value
Word count		711.36 (201.77)	705.76 (207.20)				−0.07 (z)	.96
Positive comments		2.28 (2.25)	3.04 (2.26)			0.34	−1.37 (z)	.18
Critical comments		0.52 (1.00)	0.80 (1.29)			0.25	−1.33 (z)	.20
Polarity		0.21 (0.09)	0.19 (0.08)			0.23	−1.06 (z)	.30
Subjectivity		0.66 (0.07)	0.66 (0.05)			0.01	−0.06 (z)	.48
Emotional prosody				0.73	.48	.16
	F0 median	93.29 (10.50)	93.85 (12.03)
	F0 SD	60.10 (15.24)	57.36 (11.00)
	F1 median	1.10 (0.12)	1.10 (0.13)
	Intensity SD	8.54 (1.34)	8.79 (1.98)
	Spectral slope	−0.01 (0.00)	−0.01 (0.00)
	Speak rate	2.32 (0.66)	2.31 (0.69)

Only the comparison in emotional prosody was tested parametrically with a multivariate repeated ANOVA and effect size is calculated in ƞ². All other comparisons are examined with separate Wilcoxon Matched-Pairs Tests. Mean and SD for parameters included in emotional prosody are shown separately.

Table 4. The influence of birth on Five Minute Speech Sample parameters

		Mean (SD) PL	Mean (SD) post	Test statistic parametric (F)	p-value	Effect size (d)	Test statistic non-parametric (Z)	p-value
Word count		711.36 (201.77)	688.60 (195.22)				−0.24	.82
Positive comments		2.28 (2.25)	4.05 (3.00)			0.49	−2.17	.03
Critical comments		0.52 (1.00)	0.80 (1.06)			0.22	−0.78	.51
Polarity		0.21 (0.09)	0.21 (0.07)			0.07	−0.20	.43
Subjectivity		0.66 (0.07)	0.67 (0.06)			0.01	−0.40	.71
Emotional prosody				4.62	.01	.66
	F0 median	93.29 (10.50)	94.08 (10.77)
	F0 SD	60.10 (15.24)	65.29 (15.85)
	F1 median	1.10 (0.12)	1.08 (0.11)
	Intensity SD	8.54 (1.34)	8.69 (1.27)
	Spectral slope	−0.01 (0.00)	−0.01 (0.00)
	Speak rate	2.32 (0.66)	2.26 (0.63)

Only the comparison in emotional prosody was tested parametrically with a multivariate repeated ANOVA and effect size is calculated in ƞ². All other comparisons are examined with separate Wilcoxon Matched-Pairs Tests. Mean and SD for parameters included in emotional prosody are shown separately.