Individual occipital responses to ultra-fast speech in blind subjects. BOLD responses during the ultra-fast condition versus baseline (yellow color) obtained from the seven blind participants (1 early-blind = EB; 6 late-blind = LB) with a performance level of ultra-fast speech perception above 60% correctly repeated words. Activated voxels encroaching upon the anatomical mask of the primary visual area (V1 mask: blue color; V1 overlapping activation: red color) were predominantly located within the right hemisphere. Hemodynamic responses exceeding a threshold of p < 0.001 (uncorrected) at a voxel level are displayed on horizontal brain sections (x = 0, y = -84, z = 9).
Dietrich et al. BMC Neuroscience 2013 14:74 doi:10.1186/1471-2202-14-74