. Author manuscript; available in PMC: 2011 Jun 13.

Published in final edited form as: Behav Genet. 2010 Feb 17;40(4):452–466. doi: 10.1007/s10519-010-9346-0

Table 4.

Univariate results for respiratory sinus arrhythmia (RSA), heart rate (HR1 at rest 1, HR2 at rest 2) skin conductance level (SCL) and non-specific skin conductance response (NS-SCR)

	Standardized variance components
	Males^a			Females^a			Males = Females
	A	C	E	A	C	E	A	C	E
RSA	.35 (.00–.60)	.14 (.00–.49)	.52 (.40–.67)	.31 (.00–.46)	.00 (.00–.28)	.69 (.54–.86)	.39 (.19–.49)	.00 (.00–.15)	.61 (.51–.71)
HR1	.28 (.00–.53)	.16 (.00–.46)	.57 (.44–.72)	.35 (.00–.63)	.20 (.00–.49)	.46 (.34–.61)	.30 (.02–.55)	.19 (.00–.39)	.52 (.43–.63)
HR2	.51 (.00–.69)	.08 (.00–.54)	.41 (.30–.58)	.45 (.00–.71)	.16 (.00–.53)	.40 (.28–.56)	.48 (.19–.68)	.11 (.00–.34)	.41 (.32–.52)
SCL	.26 (.00–.52)	.27 (.06–.52)	.47 (.36–.60)	.34 (.07–.60)	.31 (.09–.54)	.35 (.27–.45)	–	–	–
NS-SCR	.30 (.00–.53)	.11 (.00–.46)	.59 (.46–.75)	.32 (.00–.63)	.22 (.00–.53)	.46 (.35–.59)	.30 (.02–.55)	.17 (.00–.39)	.53 (.44–.63)

A additive genetic variance, C shared environmental variance, E non-shared environmental variance

Variance estimates for males and females come from univariate ACE models where parameters are allowed to vary across sexes