The fact that we experience negative afterimages is taken as support for the
a. notion that the retina contains three types of photopigments.
b. importance of color mixing in the visual system.
c. opponent-process theory of color vision.
d. idea that the visual system performs an algebraic summation of lights to generate a color perception.
e. trichromatic theory of color vision.
Question 2
Which of the following statements is true of color processing in the retina?
a. Blue light inhibits the activity of yellow-blue ganglion cells.
b. Green light excites the activity of red-green ganglion cells.
c. Red light inhibits the activity of red-green ganglion cells.
d. Blue light excites the activity of yellow-blue ganglion cells.
e. Yellow light inhibits the activity of both red and yellow ganglion cells.
Chemical synthesis of a peptide on an insoluble polymer support
Negative Feedback Insulin Glucagon
Negative feedback control of a regulated variable.
A Negative Afterimage
Control of Homeostasis: Negative Feedback