Table 3.

Pearson Correlation of ERP values with traditional and diffusion model indices of performance.

Performance Parameter	N1	P1	N170	P2	N2
RT	0.135	−0.046	0.03	0.054	0.042
ACC	−0.045	0.023	0.037	−0.023	−0.104
ACC Difference score	−.133	.092	.052	−.238	−.110
RT Difference score (bias)	0.064	0.069	0.122	0.098	0.133
a	−0.015	0.180*	−0.014	0.075	−0.082
aDiff	0.097	−0.020	−0.090	−0.004	−0.072
v	−0.044	−0.032	0.097	−0.083	0.097
vDiff	< 0.001	0.154	0.148	−0.043	−0.068
za	−0.017	0.142	−0.007	0.110	−0.108
zaDiff	0.107	−0.216*	−0.211*	−0.018	−0.032
Ter	0.013	0.037	−0.043	−0.026	−0.071
terDiff	−0.021	−0.102	0.095	0.021	0.039

Note:

^*p < .05

^**p < .001.

RT = reaction time, a = boundary separation, v = drift rate, za = start point, Ter = non-decision time, Diff = difference score.