Table 5.
Correlations Between Continuous Variables and Wada-fMRI LI Difference Scores
| Pearson | Spearman | |||
|---|---|---|---|---|
| r | p | rho | p | |
| Subject Variables | ||||
| Age at onset | .02 | .78 | .01 | .89 |
| Age at surgery | .05 | .50 | −.04 | .54 |
| Duration of epilepsy | .02 | .78 | −.03 | .70 |
| Full scale IQ | .08 | .21 | .05 | .45 |
| Wada Variables | ||||
| Wada total possible left | −.05 | .42 | −.04 | .51 |
| Wada total possible right | −.05 | .44 | −.09 | .16 |
| fMRI Variables | ||||
| Percent correct semantic task | −.09 | .17 | −.08 | .24 |
| Percent correct tones task | .06 | .35 | .11 | .10 |
| Head motion (RMS mean) | .10 | .12 | .13 | .06 |
| Mean residual error | .03 | .64 | .11 | .11 |
| Signal to fluctuation noise ratio | .04 | .52 | .11 | .09 |
| Artifact-contaminated volumes | .06 | .40 | −.02 | .78 |
| LIs | ||||
| Wada Laterality Index | −.22 | .001 | −.10 | .15 |
| fMRI Laterality Index | −.51 | < .0001 | −.62 | < .0001 |