Sensation refers to the process by which we detect
physical energy from the environment and encode it as
neural signals. This chapter describes the senses of
vision, hearing, taste, touch, smell, kinesthesis, and the
vestibular sense. It also presents research findings from
studies of subliminal stimulation.
In this chapter there are many terms to learn and
several theories you must understand. Many of the
terms are related to the structure of the eye, ear, and
other sensory receptors. Doing the chapter review
several times, labeling the diagrams, and rehearsing the
material frequently will help you to memorize these
structures and their functions. The theories discussed
include the signal detection, Young
color and opponent
process theories of color vision,
and the frequency and place theories of pitch. As you
study these theories, concentrate on understanding the
strengths and weaknesses
David Myers at times uses idioms that are
unfamiliar to some readers. If you do not
know the meaning of any of the following
words, phrases, or expressions in the context
in which they appear in the text, refer to
“Focus on Vocabulary” for an explanation:.
the mirror size is again stumped
First, skim the introduction. Then read the following
objectives and, as you read the text, search for the
information that will enable you to meet each
1. Contrast the processes of sensation and
Stepping Through the Introduction
After you have read the introduction, complete the
sentences and answer the questions. As you proceed,
evaluate your performance by consulting the answers.
Do not continue with the next section until you
understand each answer. If you need to, review or
reread the section in the textbook before continuing.
1. The process by which we detect physical energy
from the environment and encode it as neural
signals is ______________ . The process by which
sensations are selected, organized, and interpreted
is ______________ .
2. Sensory analysis, which starts at the entry level and
works up, is called ______________
______________ ______________ . Perceptual
analysis, which works from our experience and
expectations, is called ______________
______________ ______________ .
3. The perceptual disorder in which a person has lost
the ability to recognize familiar faces is
Sensing the World: Some Basic Principles
If you do not know the meaning of any of the
following words, phrases, or expressions in the
context in which they appear in the text, refer
to “Focus on Vocabulary” for an explanation:
A frog could starve to death knee
deep in motionless
flies; The shades on our senses are open just a crack;
the faintest whimper from the cradle; “satanic
messages”; hucksters; price hike.
.. to raise the
eyebrows; everywhere that Mary looks the scene is
sure to go.