Figure 5.

Prestimulus somatosensory alpha lateralization influences task performance in a graded manner. A, B, Bar graphs showing that cue reliability modulates the difference in alpha lateralization between correct and incorrect trials (trend, p = 0.081) (A) and between low- and high-RT trials (significant, p < 0.01) (B). The alpha-lateralization index was computed for each subject using individual ROIs. Error bars indicate SEM. Note that the 25% condition refers to the invalid trials from the 75% condition.