Look up: Blindsight

1. 
   Blindsight
   Some patients who are effectively blind because of brain damage can carry out tasks which appear to be impossible unless they can see the objects. For instance they can reach out and grasp an object, accurately describe whether a stick is vertical or horizontal, or post a letter through a narrow slot . The explanation appears to be that visual information travels along two pathways in the brain. If only one is damaged, a patient may lose the ability to see an object but still be aware of its location and orientation.
   Found on http://www.bbc.co.uk/radio4/reith2003/gl
   
   
2. 
   Blindsight
   The term describing any residual visual abilities following damage to either the geniculo-striate pathway and-or cortical area 17. Such residual abilities are fairly rudimentary aspects of vision such as the automatic shifting of gaze towards a light, and their effects are typically unconscious. [Further details and demonstration.]
   Found on http://www.smithsrisca.demon.co.uk/neuro
   
   
3. 
   Blindsight
   clinically describes patients with bilateral damage to V1, in which they deny being able to see any visual stimulus even though on formal testing they are capable of localizing visual targets accurately
   Found on http://www.medicalneuroscience.com/mglos
   
   
4. 
   Blindsight
   `Blindsight` is a phenomenon in which people who are perceptually blind in a certain area of their visual field demonstrate some response to visual stimuli, without any qualitative experience ('qualia'). In Type 1 blindsight subjects have no awareness whatsoever of any stimuli, but yet are able to predict at levels significantly above chance aspects of a visual stimulus, such as location, or type of movement, often in a forced-response or guessin...
   Found on http://en.wikipedia.org/wiki/Blindsight
   
   
5. 
   Blindsight
   (from the article `Literature`) ...Katherine Mansfield Award for her short story `Plane Sailing,` 45 years after her father, prolific author C.K. Stead, received the prize. Veteran ...
   Found on http://www.britannica.com/eb/a-z/b/78