Recruitment of occipital cortex during sensory substitution training linked to subjective experience of seeing in people with blindness.
PLoS One June 14, 2016 Tomás Ortiz, Joaquín Poch, Juan M Santos et al.
Over three months of intensive training with a tactile stimulation device, 18 blind and 10 blindfolded seeing subjects improved in their ability to identify geometric figures by touch. Seven blind subjects spontaneously reported 'visual qualia', the subjective sensation of seeing flashes of light congruent with tactile stimuli. In the latter subjects tactile stimulation evoked activation of...