Table 2.

Correlations between measures of executive functioning and ERPs (N = 215).

	1	2	3	4	5	6	7	8	9	10	11	12	13	14
1. Stroop	–
2. Go/nogo	0.03	–
3. Compatibility reaction time	0.14*	0.05	–
4. Letter-number sequencing	0.32**	−0.04	0.17*	–
5. Backward digit span	0.27**	0.13	0.08	0.37**	–
6. Sentence repetition	0.14*	0.02	0.07	0.37**	0.22**	–
7. Wisconsin card sorting test	0.23**	0.05	0.13	0.38**	0.20**	0.17*	–
8. Verbal fluency	0.40**	0.01	0.19**	0.40**	0.31**	0.30**	0.22**	–
9. Letter monitoring	0.30**	−0.02	0.21**	0.42**	0.28**	0.14*	0.29**	0.26**	–
10. P3b ERP mean amplitude composite	0.01	0.13	0.00	0.09	0.19**	0.06	0.11	0.08	0.13	–
11. P3b ERP latency composite	0.13	0.02	0.08	0.01	0.05	0.10	−0.06	−0.03	−0.04	0.00	–
12. N2 difference waveform mean amplitude composite	0.01	0.03	−0.02	−0.21**	−0.13*	−0.06	0.04	−0.03	−0.16*	−0.10	−0.05	–
13. N2 difference waveform latency (incongruous—congruous)	0.05	0.00	0.04	0.17*	0.07	−0.05	0.10	0.00	0.11	−0.02	−0.12	−0.14*	–
14. N2 difference waveform latency (reversed—congruous)	−0.21**	0.01	−0.10	−0.12	0.01	0.15*	−0.21**	−0.12	−0.08	−0.02	0.00	0.06	0.10	–

^*p < 0.05;

^**p < 0.01.