I got several questions and comments on this VERITAS. Posting a few of them:
Apurva Kalia wrote:
“How have these numbers been calculated in some manner?
Is there a way to determine the CPU speed of the visual cortex?
How does one define the no. of bits needed to form conscious awareness?”
These are excellent questions and I tried to find the answers. Could manage to find some stuff but not a lot. Scientists took a guinea pig retina and placed it in a dish. They showed it different movies. They connected 7 different types of ganglion cells in the retina to electrodes. The different ganglion cells present different pictures to the brain which then creates the overall pictures. The response time of each cell was measured by the number of electrical spikes per second in the electrodes when seeing the movie.
For more details see:
There is an article by Zimmerman called “the nervous system in the context of information theory” in the book “Human physiology” by R. F. Schmidt & G. Thews. We need access to this article to answer Apurva’s questions in detail. I do not have it yet. I will try to get it.
Rakesh Malik wrote:
” FYI — sum total of all the sensory inputs is ~ 11 Mbps. ( this is a number from a journalist and have not been able to corroborate it with published numbers in peer reviewed journals)
Erik Panu wrote:
Hence, why the whole area of metaphysics is popular… and why this movie was interesting to see; see the “Academic Reaction” part of this link in particular:http://en.wikipedia.org/wiki/What_the_Bleep_Do_We_Know!%3F