Table 3. Summary of regression analyses for variables predicting Ne/ERN amplitude.

		MC		MI		MC–MIa
		ΔR2	β	ΔR2	β	ΔR2	β
Step1		.10		.09		.02
	Age		–.12		–.21		.11
	Sex		–.16		–.10		–.07
	Maternal education		.18		.08		.13
Step 2		.24*		.05		.10*
	Fitness		–.50*		–.24		–.32*

^aA difference in Ne/ERN amplitude between the MC and MI conditions.

*p ≤ .05.