Heredity
cevans | July 19, 2010
My grandmother suffered in her old age from macular degeneration, a common age-related eye disease that causes the center of your visual field (the macula) to gradually fritz out. As it affected her more and more, the font size in her emails ballooned to cartoonish sizes. She began walking with a cane, and needed a fancy electronic doo-dad to tell her when her cup of tea was full. By the end of her life, she was totally blind.
Watching my grandmother wink out from the world of seeing was tragic; the knowledge of macular degeneration's heredity terrifying. Relatives of those who have…
neurophilosophy | March 3, 2010THE perception and recognition of faces is crucial for the social situations we encounter every day. From the moment we are born, we prefer looking at faces than at inanimate objects, because the brain is geared to perceive them, and has specialized mechanisms for doing so. Such is the importance of the face to everyday life, that we see faces everywhere, even when they are not there.
We know that the ability to recognize faces varies among individuals. Some people are born with prosopagnosia, the inability to recognize faces, and others acquire the condition as a result of brain damage. At…