Table 6. Decomposition of the Correlations (rPh) between ADHD and RTV/EEG Measures into Genetic (rph-a) and Environmental (rph-e) Components and the Overlap in Genetic (rG) and Environmental (rE) Factors between Them.

	ADHD

	rPh	rph-a	rph-e	rG	rE
RTV	.47 (.30 to.51)^a	.22 (.02 to.43)^a	.24 (.09 to .37)^a	.39 (.33 to .79)^a	.68 (.22 to .92)^a
Source PhV	.48 (.38 to .66)^a	.30 (−.08 to .37)^a	.18 (.02 to.19)^a	.51 (.15 to .99)^a	.50 (.05 to .85)^a
Source AmM	−.45 (−.60 to −.27)^a	−.38 (−.58 to −.15)^a	−.07 (−.58 to −.09)	−.61 (−1 to −24)^a	−.20 (−.68 to .31)
Channel PhV	.25 (.09 to .25)^a	.22 (−.15 to .55)	.02 (−.17 to .29)	.80 (−1 to .82)	.03 (−.35 to .37)
Channel PhM	.33 (−.24 to .33)	.15 (−.19 to .17)	.19 (−.71 to .19)	.25 (−.03 to .1)	.52 (−.35 to .66)

rG, rE: The correlation between genetic and nonshared environmental factors. These are combined with the standardized estimates of the traits (Table 4) to establish the genetic (rph-a) and unique environmental (rph-e) contributions to the total phenotypic correlation (rPh). All incongruent correct.

ADHD, attention-deficit/hyperactivity disorder; EEG, electroencephalographic; AmM, mean amplitude; AmV, variability in amplitude; PhM, mean phase; PhV, phase variability; RTV, reaction time variability.

Significant estimates.