Word: wiesel
(lookup in dictionary)
(lookup stats)
Dates: all
Sort By: most recent first
(reverse)
...Each of these cells in the cortex is looking out of a pinhole to the world," Wiesel says, "only at later stages combining into a whole...
...overall primary visual cortex, Hubel and Wiesel discovered, is composed of two systems of columns. One groups together cells recognizing steadily changing angles of orientation of bars and edges, while the other holds cells with the same eye preference. This architecture has since been found all along the cortex, even in areas having functions which are still unknown...
...this wasn't just a mysterious current moving through the brain," Wiesel says, "but a very, very precisely wired machine...
According to Hubel and Wiesel, their findings also shed light on the classic question of "nature vs. nurture"--whether perception and behavior are instinctive or learned in the environment. Since specific cells naturally recognize simple shapes, "it seems that at birth you are endowed with an eye for details," Wiesel says, adding, "The neuroconnectors are there...
...nurture these connection between the eye and visual cortex properly," if they are not used within a "critical period after birth, they will be lost," Wiesel says...