Title: Operant Conditioning
1(No Transcript)
2Reward
Punishment
3Reinforcement/Punishment
4- Four Possible Consequences
- There are four possible consequences to any
behavior. - They are
- Something Good can start or be presented PR
Something Good can end or be taken away NP
Something Bad can start or be presented PP
Something Bad can end or be taken away NR.
5- Something Good can start or be presented, so
behavior increases Positive Reinforcement (R) - Something Good can end or be taken away, so
behavior decreases Negative Punishment (P-) - Something Bad can start or be presented, so
behavior decreases Positive Punishment (P) - Something Bad can end or be taken away, so
behavior increases Negative Reinforcement (R-)
6 7Negative reinforcement Active Avoidance
8(No Transcript)
9Dennis says it all..
- Dennis, if you dont stop bothering Mr. Wilson,
you cant listen to MTVNP
10HOW COMPLEX BEHAVIORSARE LEARNED
- Successive approximation/shaping reinforcing
behaviors as they come to approximate the desired
behavior - Superstitious Behavior when persistent
behaviors are reinforced coincidentally rather
than functionally
11 12Prevent a dog from escaping electric shocks, and
it will stop trying to get away.
Applications for abused women and children
13Learned Helplessness Paradigm Seligman
Triadic Design
Phase 1 Phase 2
Group A Escapable Shock Group B Yoked
Inescapable Shock Group C Exposure to apparatus
only
Escape/Avoidance training
(For Group A shock can be terminated by rotating
a wheel.)
14Learned Helplessness Seligman, Peterson, et al.
- Dogs exposed to unavoidable shocks
- Following exposure, when placed in a situation
where they can now jump to avoid the shock, they
fail to make the escape response. - Learned helplessness occurs when one perceives
that ones actions (e.g., working hard) does not
lead to the expected outcome (e.g., high grade).
15Possible Explanations
- Learned Helplessness Organisms learn that their
behavior is ineffectual - Poverty of activity inescapable shock reduces
the variability in behavior that is so crucial
for operant conditioning - Inattention animals stop attending to their own
behavior
16Battered Spouse Syndrome
- Learned helplessness
- Victim Mentality
- Increased dependency on abuser
17- Psychological Behavioral Results
- Learned Helplessness
- Seligmans experiments with rats and dogs
- Learned helplessness in humans linked with
attributions of a lack of control after
experiences of being in an impotent position
Environment which lacks positive reinforcement gt
reduction in activities and withdrawal
18Selyes General Adaptation Syndrome (1956, 1976,
1985)
- Resistance
- Arousal high
- as body tries
- defend and
- adapt.
- Exhaustion
- Limited
- physical
- resources
- resistance
- to disease
- collapses
- death
- Alarm
- Reaction
- Fight or
- flight
P
If stress continues .
19Ratio
Interval
Fixed
Variable