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To: Jim McMannis who wrote (213160)	10/10/2006 3:00:02 PM
From: Tenchusatsu	Read Replies (1) \| Respond to of 275872

Jim, > Compare a retina to a ccd? dunno. It's just as easy as comparing the capacity of the human brain to that of a hard drive. If you're still looking for answers, try watching Johnny Mnemonic starring Keanu Reeves: imdb.com Tenchusatsu

To: Jim McMannis who wrote (213160)	10/10/2006 3:04:13 PM
From: combjelly	Read Replies (1) \| Respond to of 275872

"Compare a retina to a ccd? dunno." You can't. For one, the resolution changes over the surface of the retina, you see clearest right smack in the middle. This is one reason why your eyes are constantly scanning in saccades. It doesn't look like that to you because the brain processes everything and it seems like you have a stationary, high resolution image from edge to edge, but you don't. The saccades are very important for another reason. If they didn't happen you would be blind because the retina only responds to moving patterns. In addition, all the rods and cones in the retina are connected to the amacrine and bipolar cells which are sensitive to such things as lines, circles and other shapes, moving in various directions. These higher order objects are what is sent along the optic nerve. And that is where things start getting really complicated... My pet theory is the sensory system is key to understanding intelligence. The degree to which it abstracts and reconstructs images is similar to the way intelligence allows us to abstract and analyze. But that would be a different degree...