Hot answers tagged

8

Humans (and many mammals, for that matter) are not born knowing how to use our eyes. During the first month we can only discern vague shapes and shadows beyond much more than a foot or so, though some color development takes place during that time. (References here and here.)I won't go into anymore detail; the point being that the brain of a person who is ...


4

There are four cognitive symptom categories for Alzheimer's disease: aphasia, amnesia, apraxia, agnosia. These are broad categories that our brains handle somewhat separately. People frequently do sustain a brain injury to the left side of the head that damages his or her ability to process language and speech without affecting any other cognitive abilities. ...


2

Déjà vu is a French term that literally means "already seen" and is reported to occur in 60-70% of people, most commonly between the ages of 15 and 25. The fact that déjà vu occurs so randomly and rapidly—and in individuals without a medical condition—makes it difficult to study, and why and how the phenomenon occurs is up to much speculation. A related ...


Only top voted, non community-wiki answers of a minimum length are eligible