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Emotion
IF A MAD SCIENTIST WERE TO REPLACE
YOUR BEST FRIENDS BRAIN WITH A
COMPUTER- HOW WOULD YOU KNOW
SOMETHING WAS DIFFERENT?
What is emotion?
A psychological state characterized
by physiological arousal and changes
in expression, gestures, posture and
feelings
Robert Plutchik’s 8 Basic Emotions
Which comes first- behavior or emotion?
Cannon-Bard Theory
James-Lange Theory
Emotional event happens
Physiological arousal
+
“state” of emotion
Happen simultaneously
Emotional event happens
Physiological arousal
Then…
“state” of emotion
Two-Factor (Schachter-Singer) Theory
 Adds a cognitive component to emotion.
 Proposes that we can interpret identical physical
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


sensations differently according to context.
There are TWO FACTORS at work: physiological
arousal and cognitive interpretation of arousal
Think “S” for Schachter-Singer and “S” for situation
Link to color afterimages
Link to sensation seeking behaviors (bungee
jumping)
Opponent Process Theory
 Are we driven to
return to satisfy our
needs-homeostasis?
 “Opposing” emotions
 Remember color
afterimages?
The Face
How accurately does the
human face reveal emotion?
Paul Ekman
 The human face can
make 7,000 different
expressions.
 Universal “faces”
 Anger
 Disgust
 Sadness
 Happiness
 Fear
 Surprise
Cross Cultural research into the expression
of emotion
Display Rules……
Facial Feedback
Hypothesis
 We learn when we are
 If you “force” a smile-
little how and when to
display emotions
will you feel happier?
 If you “force” a frownwill you feel sad?
 What theory does this
match up with?
Emotional Expression
 Polygraphs (lie
detectors) measure
emotional biology
 Facial recognition
technologyMicroexpressions
Biology of Emotion
Left Hemisphere=
Positive Affect
Right Hemishpere=
Negative Affect