Affective Computing, Chapter 1

1
Affective Computing, Chapter 1

• Presented by J Bryan Pittard

2
How can we study affective computing?(when
emotions are so hard to precisely define)

• McCarthys Mt. Everest

• Might not be defined, but can be
• detected and emulated

• Studying it in computers might
• will help us better understand
• them in ourselves

3
Two Views of Emotion

• Why two views?

• Damasio Descartes Error

• Physical expression of the body

• Cognitive state of mind

4
Physical Emotion

• William James

• Emotions are the physiological expression of an
  exciting fact

• http//www.emory.edu/EDUCATION/mfp/james.html

5
Components of Emotion

• Emotional state internal dynamics

• Emotional experience subjective experience

• Emotional expression external experience of
  emotion by others

• Mood long-term emotional state

6
Sentic Modulations

• Physically experienced emotional expressions.

• Facial change (Ekman, Duchenne)

• Voice inflection

• Body Posture

• Sentic Equivalence (Clynes)

7
Facial Expression

• Duchenne muscles of attention, disdain, lust,
  doubt

• Ekman - Facial Action Coding System

• Social Display Rules

• http//www.paulekman.com/

8
Sentic Equivalence
Dr. Manfred Clynes

• Sentograph two degrees of freedom

• Essentic Form a spatiotemporal form that
  embodies an emotional message

• http//www.superconductor.com/clynes/default.htm

9
Physiological Factors

• Intensity of Emotion

• Type of Emotion

• Cause of Emotion

• Social Display Rules

10
Altering Expression

• Chemical hormones, medication

• Mood states

• Other non-emotional triggers

11
Problems Detecting

• Idiosyncratic Expression

• Ambiguous Sentic Expressions

• Expression Altering Factors

• Wearables Solution (Negroponte)

12
Cognitive Emotions

• Dr. Antonio Damasio

• Primary Emotions - instinctive

• Secondary Emotions - cognitive

• http//www.uiowa.edu/neuro/Faculty/damasioa.htm

13
Secondary Emotions

• Help generalize reactions to primary

• Help with memory (Stanislavsky)

• Dictated by personal experience

14
How Affect Affects You

• Emotion helps the interaction between limbic and
  cortical systems creativity!

• Alcohol and Caffeine

• Whistle while you work!

• Elephants are Happy! -)

• Physiological Feedback

15
?