Some people can’t see, but still think they can: here’s how the brain controls our vision

  Mr B presented to the emergency department because of frequent falls and an inability to grasp anything in front of him. He could recognise his family by their voices but not by sight. When a pen was put in front of him, he claimed nothing was there, and he was unable to see the neurologist’s hands waving at him. He was diagnosed with total blindness. However, Mr B was unaware of and unperturbed by his blindness. He vividly described surroundings that did not actually exist. Brain imaging revealed strokes that had damaged his visual cortex. Mr B had a…
View More/Source Article