Figure 4.

Frontoparietal beta-band activity predicts decision accuracy. (A) Time–frequency representation of the difference in neural activity between correct and error trials recorded at MEG sensors overlying parietal cortex during the motion-detection task. (B) Cortical distribution of the performance-predictive beta-band activity (correct > error; p < 0.001 corrected; dlPFC, dorsolateral prefrontal cortex; PPC, posterior parietal cortex). (C) Mean beta-band responses in dlPFC, for each stimulus–choice combination. Data is shown for one representative subject. See Donner et al. (2007) for full details and data from all individual subjects (CR, correct rejects; FA, false alarms; M, misses; H, hits). Reprinted and modified with permission from Donner et al. (2007).