Transcript Chapter 8: Sensation and Perception
Chapter 8: Sensation & Perception
Mr. McCormick Psychology
Do-Now: (Discussion) If you had to
sacrifice
senses
: one of your
five
Sight Hearing Touch Smell Taste
Which one would it be? Why?
“Fraser’s Spiral”
“Fraser’s Spiral”
Why does this image
appear
to be a
spiral
?
Sensation vs. Perception
Sensation:
What occurs when a stimulus (change in environment, to which an organism responds) activates a receptor
Perception:
The organization of sensory information into meaningful experiences
“Fraser’s Spiral”
In viewing “Fraser’s Spiral:”
What are we
sensing
?
What are we
perceiving
?
How do we use
sensation perception
and together to
understand
world?
our
“The Disappearing Circle”
“The Disappearing Circle”
When focusing on the black dot, why does the outer grey circle
appear
to
fade away
?
Sensory Adaptation
Sensory Adaptation:
Senses tuned to change; adaptable Responsive to increases and decreases of stimuli E.g.: Eyes adjust to darkness in a movie theatre Skin adapts to coldness of ocean water
Sensory Adaptation
Can you think of other examples of how our senses adapt to changes in external stimuli?
What would happen if we did not have “sensory adaptation?”
Without Sensory Adaptation..
Without sensory adaptation, the human body would be overloaded with stimuli. For example, right now we would be feeling the constant pressure of the clothing we are wearing, the chairs on which we are seated, etc.
“The Stroop Effect” (Part A.)
“The Stroop Effect” (Part B.)
“The Stroop Effect” (Part C.)
“The Stroop Effect” Why is it more
difficult
colors
in
“Part C.?”
to name the
The “Stroop Effect” illustrates how difficult it is to ignore some kinds of stimuli
You were receiving two stimuli – the color and the word – which compete and slow you down when you try to name the color
Review What is the
difference
between
sensation
and
perception
?
What is
sensory adaptation
?
Why
do humans adapt to stimuli?
Homework
Read Chapter 8.1 “Sensation”
Pgs. 206-213
Complete Section 1 Assessment
Pg. 213
#s 1, 2, 4