Top Posters
Since Sunday
g
3
3
2
J
2
p
2
m
2
h
2
s
2
r
2
d
2
l
2
a
2
SlideshowReport

Enhancement of Contrast

Description
Although each gray square is of uniform darkness, the right edge of each square looks somewhat lighter, and the left edge looks somewhat darker. This effect appears to be caused by the opponent center-surround arrangement of the receptive fields of the retinal ganglion cells.
Related Images
Add Comment
Explore
Post your homework questions and get free online help from our incredible volunteers
  1163 People Browsing
 115 Signed Up Today
Your Opinion
Who's your favorite biologist?
Votes: 586