A related question is how much in the persistence of vision is retinal and how much is neural. With the advent of DLP projectors we have a way to know that within average lighting conditions, the retinal persistence of peripheral vision is negligible. Unless the peripheral cones are morphologically different from the macular ones, we have to assume that it is all neural. The wiring to slow down the persistence decay while the eyes are closed must be very simple.
By the way, on a bright sunny day I can walk with my eyes closed more than 95% of the time. It is enough to "reverse blink" the eyes every 6-7 steps to walk fairly comfortably in an uncrowded street. I can perceive even some sort of motion estimation.
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timeasmymeasure
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Date: 2005-07-27 05:03 am (UTC)By the way, on a bright sunny day I can walk with my eyes closed more than 95% of the time. It is enough to "reverse blink" the eyes every 6-7 steps to walk fairly comfortably in an uncrowded street. I can perceive even some sort of motion estimation.