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Visual perception

Total questions: 25

Worksheet time: 17mins

Name
Class
Date
1.
The smallest difference between two stimuli that can be detected 50% of the time is called
a)
absolute threshold
b)
difference threshold
c)
sensory adaptation
d)
subliminal perception
2.
Which of the following processes has begun as soon as special receptor cells for the senses are activated?
a)
perception
b)
adaptation
c)
habituation
d)
sensation
3.

The minimum amount of energy needed for a stimulus to be perceived

a)

absolute threshold

b)

psychological equation

c)

just noticeable difference

d)

Weber effect

4.

What does farsighted mean?

a)

You can see far away well.

b)

You can see close up well.

c)

You can see into the future.

d)

You are blind.

5.
What part of your eye sends the messages to and from your brain?
a)
retina
b)
optic nerve
c)
iris
d)
vitreous humor
6.
What is the protective covering over your eye?
a)
refraction
b)
cornea
c)
puppies
d)
eyeballs
7.
What is the hole that lets light into the eye?
a)
Pupil
b)
Eyelashes
c)
Farsighted
d)
Opaque
8.
What is the muscle that opens and closes the pupil?
a)
food
b)
transluscent
c)
iris
d)
lens
9.
What is the part of your eye that helps you focus?
a)
iris
b)
optic nerve
c)
brain
d)
lens
10.

Which is True?

a)

There are an equal number of rods and cones. Cones detect black and white

b)

there are an equal number of rods and cones. Rods detect Black and White

c)

there are more cones than rods and cones detect black and white

d)

There are more rods than cones and rods detect black and white

11.
What is letter B
a)
Optic nerve
b)
Lens
c)
Cornea
d)
Retina
12.

The retina

a)

is rectangular

b)

is the clear tissue that covers the front of the eye

c)

is the light sensitive inner surface of the eye containing the receptor rods and cones

d)

changes shape to help focus images on the retina

13.
What part of the eye allows us to see color?
a)
cones
b)
rods
c)
iris
d)
eyeball
14.
Which of the following is the correct order of the structures through which light passes after entering the eye?
a)
Lens, pupil, cornea, retina
b)
Pupil, cornea, lens, retina
c)
Cornea, retina, pupil, lens
d)
Cornea, pupil, lens, retina
15.
The process where stimuli is converted into a neural signal, then send to the brain:
a)
perception
b)
sensation
c)
conduction
d)
transduction
16.
What is letter E?
a)
Vitreous humor
b)
Retina
c)
Cornea
d)
Optic nerve
17.
What is letter F?
a)
Retina
b)
Pupil
c)
Vitreous humor
d)
Iris
18.
What is letter G?
a)
Sclera
b)
Retina
c)
Lens
d)
Vitreous humor
19.
What is letter I?
a)
Cornea
b)
Lens
c)
Vitreous humor
d)
Optic nerve
20.
What is letter H?
a)
Cornea
b)
Optic nerve
c)
Iris
d)
Retina
21.

Which statement is true?

a)

Cone cells detect light and dark

b)

Rods focus light

c)

Cones detect color

d)

Rods detect color

22.

Another word for nearsightedness

a)

myopia

b)

hyperopia

c)

Utopia

d)

farsightedness

23.

In nearsightedness, the eyeball is

a)

damaged

b)

too short

c)

too long

d)

lazy

24.

If someone suffers from hyperopia

a)

they can't sit still

b)

light waves are focussed behind the retina, blurring the image

c)

light waves are focussed in front of the retina, blurring the image

d)

light waves are not transduced into electrochemical energy

25.

Rods are responsible for __________ and ____________________ while cones are responsible for _________ and _________

a)

colour vision and detail: night vision and peripheral vision

b)

night vision and detail; colour vision and peripheral vision

c)

night vision and colour vision; colour vision and detail

d)

night vision and peripheral vision; colour vision and detail