Figure 2

Attention-related alpha-band power modulations (10–14 Hz) relative to pre-trial and pre-stimulus baselines for sighted and congenitally blind groups. All data have been recoded as if stimulation always occurred on the anatomically right hand, so that the left hemisphere is contralateral to tactile stimulation in a skin-based reference frame, independent of posture. Left two columns, contra- and ipsilateral alpha-band power, pre-trial baseline (marked with gray rectangle); right two columns, contra- and ipsilateral alpha-band power, pre-stimulus baseline (marked with gray rectangle). (A–H) Difference of attended minus unattended alpha-band power for uncrossed (red) and crossed (blue) hands at central electrodes, as indicated in the insets in (E–H). (I–P) Difference of attended minus unattended alpha-band power for uncrossed and crossed hands at parietal electrodes (see insets (M–P). Contralateral power is depicted on the left hemisphere (A,C,E,G, I,K,M,O), and ipsilateral power on the right hemisphere (B,D,F,H,J,L,N,P). Shaded areas around power traces represent the standard error of the mean. Parts I-L used with permission from ref.⁴⁷.