Word: visualizers
(lookup in dictionary)
(lookup stats)
Dates: all
Sort By: most recent first
(reverse)
...external world. Interfere with that process, and you can cause permanent, irrevocable damage. If a child is born blind, for example, it's pretty much over by age 6. You can fix the eyes, and they might be able to perceive light and dark. Without the right visual circuitry in place, though, there's no way to form images--the essence of true sight...
...Psychological Science, is forcing scientists to rethink their long-held beliefs about vision. "There is a critical period for perfect acuity," says Pawan Sinha, associate professor of neuroscience at M.I.T. and a co-author of the paper. "But there is not a critical period for learning to do complex visual tasks...
Evidently, though, nobody told the surgeons who operated on S.R.D. And as Sinha and his colleagues discovered, it's a good thing. Even though S.R.D.'s visual acuity topped out at 20/200--considered legally blind in the U.S.--her brain had, in defiance of theory, learned to interpret visual information. One year after surgery, she could recognize her family's faces and identify objects. And that's a very big deal. Dr. Suma Ganesh, a pediatric ophthalmologist at the Dr. Shroff's Charity Eye Hospital in Old Delhi, India, used to believe that operating on blind children past the critical period...
...explore this question next summer by taking pictures of the brain before and after surgery using functional magnetic resonance imaging (fMRI) scanners. Since the brain devotes roughly 35% of its power to vision, they hypothesize that when this sense is compromised, others, like smell and touch, take over the visual-processing circuits. After surgery, they suspect, the sense of sight reclaims its territory inside the brain...
...forbidden fruit. You can’t have it, and that makes you want it more.” Thus opens “Secrecy,” a documentary on government security classification made by two Harvard professors from disparate fields—one, a professor of Visual and Environmental Studies (VES) and one a scientist and historian. The film’s unique appeal drew a crowd of over 60 members of the Harvard History of Science Colloquia to a special preview screening in the Science Center on Tuesday. SECRETS AND LIES “Secrecy?...