Broadband gamma activity bar plots of activity within each ROI, averaged across pre-articulatory (−500 to −100 ms), post-articulatory (200 to 600 ms) and late post-articulatory (600 to 1000 ms) windows for each task. Error bars represent standard error margin. Significance bars show contrasts discussed in main text; ns p>0.05, *p<0.05, **p<0.01. Responses are time locked to speech onset in the reading and naming tasks and to the stimulus onset in listening. PI: Posterior Insula, AI: Anterior Insula, STG: Superior Temporal Gyrus, CS: Central Sulcus, IFG: Inferior Frontal Gyrus.