
Blindsight is an unusual condition where the sufferer can respond to visual stimuli, while lacking any conscious feeling of having seen the stimuli. It occurs after a particular form of brain injury. The first edition of Blindsight, by one of the pioneers in the field...

Damage to the neocortex is generally understood to result in blindness. Studies of some patients who have suffered from this form of blindness have, nevertheless, revealed that they can discriminate certain types of visual events within their "blind" field. However, patients...