If he sees in black and white, why does he see in a "noisy TV" sort of black and white instead of just a clear image devoid of color? <img src="graemlins/cancer.gif" border="0" alt="[cancer]" /> I bet John Doe doesn't bother with satellite-dish TV.
purely from a rods and cones point of view, it's advantageous to pick b/w rather than colour if you've only got one working
the focal centre of your retina is almost exclusively colour sensitive cells... that's why stargazers must use averted vision to detect faint stars... dead centre focus doesn't have enough b/w sensitivity
a truly accurate model of b/w-only vision would effectively have a completely blind central disk diffused at the edges where the brain compensates
incidentally, there is a medical condition called synesthaesia where people conflate multiple senses so that, for example numbers or music is visualized with specific colours. something like 3 in a 1000 have this condition, and some exaggerated cases report "hearing in colour" although they only "see in b/w"
not sure if the show has consulted with specialists in synesthaesia or if the DP is wingin' it
Comments
the focal centre of your retina is almost exclusively colour sensitive cells... that's why stargazers must use averted vision to detect faint stars... dead centre focus doesn't have enough b/w sensitivity
a truly accurate model of b/w-only vision would effectively have a completely blind central disk diffused at the edges where the brain compensates
incidentally, there is a medical condition called synesthaesia where people conflate multiple senses so that, for example numbers or music is visualized with specific colours. something like 3 in a 1000 have this condition, and some exaggerated cases report "hearing in colour" although they only "see in b/w"
not sure if the show has consulted with specialists in synesthaesia or if the DP is wingin' it
edit:<a href="http://web.mit.edu/synesthesia/www/synesthesia.html" target="_blank">linky for explainy</a>
[ 03-10-2003: Message edited by: curiousuburb ]</p>