Interactive Links
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Chapter 3
SENSATION AND PERCEPTION
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Active Learning Exercises
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Faces / Vase
Illusion
Why do you sometimes see the faces and sometimes see the vase?
Investigate the Gestalt principle of figure and ground by viewing a stereogram of the
faces/vase illusion.
(See also pages 111-113 in Psychology in Action, 5e.)
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Great interactive illusions!
Psychologists gain many insights into how the brain processes information by studying
illusions.
This site has several interactive illusions that you can try. Most of the illusions also
have explanations of how and why you see the illusion.
(See also pages 120-121 and 126-127 in Psychology in Action, 5e.)
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More illusions!
This site has several illusions that you can try. Some of the illusions also have
explanations of how and why you see the illusion.
(See also pages 120-121 and 126-127 in Psychology in Action, 5e.)
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Sensation and
Perception Tutorials
Have you ever looked at a painting and asked yourself how the artist created such a
realistic scene? One of the sensation and perception tutorials created by John Krantz at
Hanover College explains how depth cues are used in art.
(See also pages 117–122 in Psychology in Action, 5e.)
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Dissection of a Cow's Eye
This demonstration by the Exploratorium in San Francisco shows you how to dissect a cow's
eye. (Cow eyes are very similar to human eyes and are easier to obtain for study
purposes.) You will be able to see the sclera, the cornea, the lens, the retina, the optic
nerve, and the blind spot.
(See also pages 92-96 in Psychology in Action, 5e.)
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Bird in a Cage (Color Aftereffects)
This demonstration by the Exploratorium in San Francisco lets you experience several color
aftereffects.
(See also pages 122-123 in Psychology in Action, 5e.)
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The Joy of Visual Perception
This "web book" has tons of diagrams, explanations, and active
learning exercises on vision and visual perception.
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Mix Different
Colored Lights
This demonstration allows you to mix red, green, and blue lights and see the resulting
colors. This is additive color mixing where you add the color of one light to the
color of another light. When you mix paints you do subtractive color
mixing where the pigments in the paints absorb, or subtract, different colors. In
subtractive color mixing you only see the color that is not absorbed by the paint.
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Distorted Vision
This page shows you how difficult it would be to type by sight if when you thought you
were moving your hand to the left, it really was moving to the right. There are
several different test that you can do, including reversed left and right, reversed up and
down, and reversed everything. Try it, it is really fun.
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Color
Aftereffects
This is a demonstration of color aftereffects that supports the opponent process theory of
color vision. (This is similar to the demonstration on page 123 of the text.)
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Perceptual
Expectancy: Mona
This page allows you to test your perceptual expectations. It is similar to the
picture on page 127 of the text.
Anatomy of Sensory Organs
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The
Anatomy of the eye
This diagram is on the Eye Net site that is supported by the American Academy of
Ophthalmology. (This is similar to the Figure 3.4 on page 93 of Psychology in
Action, 5e.)
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Eye Diagram
This is a very nice three-dimensional color diagram of the eye.
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The Virtual Tour of
the Ear
Just about everything you ever wanted to know about the anatomy of the ear can be found
here. (See also pages 96–99 in Psychology in Action, 5e.)
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Color
Diagram of the Ear
This color diagram of the ear was created by the company that did the illustrations for
the World Book Encyclopedia. There are no labels, but the diagram is very nice. You
can easily see all the parts of the outer and middle ear, and the outside of the cochlea
and the vestibular apparatus.
(See also page 97 in Psychology in Action,
5e.)
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Perfect Pitch on the
Internet
Only one in 1200 people have perfect pitch, also known as absolute pitch, the ability to
identify exactly any musical note without reference to another note. This site
discusses perfect pitch and has several links to other perfect pitch related sites.
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Taste and Smell,
Sight, Hearing
Very detailed PowerPoint lectures on taste and smell, sight, and hearing by Terry Wiseth.
(See also pages 100–102 in Psychology in Action, 5e.)
Vision Problems
Stereograms and Impossible Figures
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Magic Eye 3-D Stereograms
Have you ever wondered how "Magic Eye" 3-D stereograms work?
Do you have trouble seeing "Magic Eye" 3-D stereograms?
This site has several examples of different types of stereograms as well as explanations
of why they work and how to view the stereograms.
(See also page 118 in Psychology in Action, 5e.)
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Download
a program to draw impossible figures.
Impossible figures are illusions that trick you into seeing a 3-D object that is
impossible in the real world.
There are several different ways of making impossible figures. This site has a program you
can download that will allow you to make your own impossible figures, along with an
explanation of why you see impossible figures.
(See also pages 117-122 in Psychology in Action, 5e.)
Extra Sensory Perception & the Paranormal
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Extra
Sensory Perception Fact Sheet
This page gives you a summary of the lack of scientific evidence for ESP.
There are also several references.
(See also pages 127²130 in Psychology in Action, 5e.)
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ESP Test
This page allows you to test your ESP by trying to guess which Zener card the computer has
chosen. There are 25 different trials and to exhibit ESP you would have to be able
to consistantly guess at least 9 out of 25. (One trial of 9 does not prove ESP.)
Chance is 5 out of 25.
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