Understanding Psychology (10th Ed)

E VA LU AT E
1.
Light entering the eye fi rst passes through the 
, 
a protective window.
retina p. 106
rods p. 106
cones p. 106
optic nerve p. 107
feature detection p. 109
trichromatic theory of color 
vision p. 111
opponent-process theory of 
color vision p. 112
2.
The structure that converts light into usable neural 
messages is called the 
.
3.
A woman with blue eyes could be described as having 
blue pigment in her 
.
4.
What is the process by which the thickness of the lens is 
changed in order to focus light properly?
5.
The proper sequence of structures that light passes 
through in the eye is the 
, 
, 
, and 
.
6.
Match each type of visual receptor with its function.
a.
rods
1.
used for dim light, largely 
b.
cones
insensitive to color
2.
detect color, good in bright light
7.
theory states that there are three types of 
cones in the retina, each of which responds primarily to a 
different color.
R E T H I N K
1.
If the eye had a second lens that “unreversed” the image 
hitting the retina, do you think there would be changes in 
the way people perceive the world?
2.
From the perspective of an advertising specialist: How might 
you market your products similarly or differently to those 
who are color-blind versus those who have normal color 
vision?
Answers to Evaluate Questions
1.
cornea; 
2.
r
etina;
3.
iris; 
4.
accommodation;