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Transcript
Psychology: A Modular Approach to Mind and Behavior, Tenth Edition, Dennis Coon
Chapter 7
Chapter 7: Conditioning and
Learning
Psychology: A Modular Approach to Mind and Behavior, Tenth Edition, Dennis Coon
Chapter 7
Learning: Some Key Terms
• Learning: Relatively permanent change in
•
behavior due to experience
– Does NOT include temporary changes due
to disease, injury, maturation, injury, or
drugs, since these do NOT qualify as
learning
Reinforcement: Any event that increases the
probability that a response will recur
Psychology: A Modular Approach to Mind and Behavior, Tenth Edition, Dennis Coon
Chapter 7
Learning: Some More Key Terms
• Response: Any identifiable behavior
– Internal: Faster heartbeat
– Observable: Eating, scratching
Psychology: A Modular Approach to Mind and Behavior, Tenth Edition, Dennis Coon
Chapter 7
Learning: Two More Key Terms
• Antecedents: Events that precede a response
• Consequences: Effects that follow a response
Psychology: A Modular Approach to Mind and Behavior, Tenth Edition, Dennis Coon
Chapter 7
Classical Conditioning
• Ivan Pavlov: Russian physiologist who initially
•
•
•
was studying digestion
Used dogs to study salivation when dogs
were presented with meat powder
Also known as Pavlovian or Respondent
Conditioning
Reflex: Automatic, nonlearned response
Psychology: A Modular Approach to Mind and Behavior, Tenth Edition, Dennis Coon
Chapter 7
Figure 7.3
Psychology: A Modular Approach to Mind and Behavior, Tenth Edition, Dennis Coon
Chapter 7
Table 7.1
Psychology: A Modular Approach to Mind and Behavior, Tenth Edition, Dennis Coon
Chapter 7
Basics of Classical Conditioning
Psychology: A Modular Approach to Mind and Behavior, Tenth Edition, Dennis Coon
Chapter 7
Principles of Classical Conditioning
• Acquisition: Training period when a response
•
•
is strengthened
Higher Order Conditioning: A conditioned
stimulus is used to reinforce further learning
Expectancy: Anticipation concerning future
events or relationships
Psychology: A Modular Approach to Mind and Behavior, Tenth Edition, Dennis Coon
Chapter 7
More Classical Conditioning Terms
• Extinction: Weakening of a conditioned
•
response through removal of reinforcement
Spontaneous Recovery: Reappearance of a
learned response following apparent
extinction
Psychology: A Modular Approach to Mind and Behavior, Tenth Edition, Dennis Coon
Chapter 7
Figure 7.4
Psychology: A Modular Approach to Mind and Behavior, Tenth Edition, Dennis Coon
Chapter 7
Figure 7.5
Psychology: A Modular Approach to Mind and Behavior, Tenth Edition, Dennis Coon
Chapter 7
More Principles of Classical Conditioning
• Stimulus Generalization: A tendency to
•
respond to stimuli that are similar, but not
identical to, a conditioned stimulus (e.g.,
responding to a buzzer or a hammer banging
when the conditioning stimulus was a bell)
Stimulus Discrimination: The learned ability to
respond differently to similar stimuli (e.g.,
Anya will respond differently to various bells:
alarms, school, timer)
Psychology: A Modular Approach to Mind and Behavior, Tenth Edition, Dennis Coon
Chapter 7
Features and Phases of Classical Conditioning
Psychology: A Modular Approach to Mind and Behavior, Tenth Edition, Dennis Coon
Chapter 7
Figure 7.6
Psychology: A Modular Approach to Mind and Behavior, Tenth Edition, Dennis Coon
Chapter 7
Classical Conditioning in Humans
• Phobia: Intense, unrealistic, irrational fear of
•
a specific situation or object (e.g.,
arachnophobia, fear of spiders)
Conditioned Emotional Response (CER):
Learned emotional reaction to a previously
neutral stimulus
Psychology: A Modular Approach to Mind and Behavior, Tenth Edition, Dennis Coon
Chapter 7
Classical Conditioning in Human (cont.)
• Desensitization: Exposing phobic people
•
gradually to feared stimuli while they stay
calm and relaxed
Vicarious Classical Conditioning: Learning to
respond emotionally to a stimulus by
observing another’s emotional reactions
Psychology: A Modular Approach to Mind and Behavior, Tenth Edition, Dennis Coon
Chapter 7
Figure 7.7
Psychology: A Modular Approach to Mind and Behavior, Tenth Edition, Dennis Coon
Chapter 7
Operant Conditioning (Instrumental Learning)
• Learning based on the consequences of
•
responding; we associate responses with
their consequences
Law of Effect (Thorndike): The probability of a
response is altered by the effect it has;
responses that lead to desired effects are
repeated; those that lead to undesired effects
are not
Psychology: A Modular Approach to Mind and Behavior, Tenth Edition, Dennis Coon
Chapter 7
More Operant Conditioning Terms
• Operant Reinforcer: Any event that follows a
•
•
response and increases its likelihood of
recurring
Conditioning Chamber (Skinner Box):
Apparatus designed to study operant
conditioning in animals
Response-Contingent Reinforcement:
Reinforcement given only when a particular
response occurs
Psychology: A Modular Approach to Mind and Behavior, Tenth Edition, Dennis Coon
Chapter 7
Rat in a Skinner Box
Psychology: A Modular Approach to Mind and Behavior, Tenth Edition, Dennis Coon
Chapter 7
Figure 7.8
Psychology: A Modular Approach to Mind and Behavior, Tenth Edition, Dennis Coon
Chapter 7
Figure 7.9
Psychology: A Modular Approach to Mind and Behavior, Tenth Edition, Dennis Coon
Chapter 7
Timing of Reinforcement
• Operant reinforcement most effective when
•
•
given immediately after a correct response
Effectiveness of reinforcement is inversely
related to time elapsed after correct response
occurs
Response Chain: A linked series of actions
that leads to reinforcement
Psychology: A Modular Approach to Mind and Behavior, Tenth Edition, Dennis Coon
Chapter 7
Timing of Reinforcement (cont.)
• Superstitious Behavior: Behavior that is
•
•
repeated to produce reinforcement, even
though it is not necessary
Shaping: Molding responses gradually in a
step-by-step fashion to a desired pattern
Successive Approximations: Ever-closer
matches
Psychology: A Modular Approach to Mind and Behavior, Tenth Edition, Dennis Coon
Chapter 7
Operant Extinction
• Definition: When learned responses that are
•
NOT reinforced gradually fade away
Negative Attention Seeking: Using
misbehavior to gain attention
Psychology: A Modular Approach to Mind and Behavior, Tenth Edition, Dennis Coon
Chapter 7
Figure 7.10
Psychology: A Modular Approach to Mind and Behavior, Tenth Edition, Dennis Coon
Chapter 7
Figure 7.12
Psychology: A Modular Approach to Mind and Behavior, Tenth Edition, Dennis Coon
Chapter 7
More Operant Conditioning Terms
• Positive Reinforcement: When a response is
•
followed by a reward or other positive event
Negative Reinforcement: When a response is
followed by the removal of an unpleasant
event (e.g., the bells in Fannie’s car stop
when she puts the seatbelt on); ends
discomfort
Psychology: A Modular Approach to Mind and Behavior, Tenth Edition, Dennis Coon
Chapter 7
Punishment
• Any event that follows a response and
•
decreases the likelihood of it recurring (e.g., a
spanking)
Response Cost: Reinforcer or positive thing is
removed (e.g., losing Xbox™ privileges)
Psychology: A Modular Approach to Mind and Behavior, Tenth Edition, Dennis Coon
Chapter 7
Figure 7.1
Psychology: A Modular Approach to Mind and Behavior, Tenth Edition, Dennis Coon
Chapter 7
Types of Reinforcers
• Primary Reinforcer: Nonlearned and natural;
•
•
satisfies physiological needs (e.g., food,
water, sex)
Intracranial Stimulation (ICS): Natural primary
reinforcer; involves direct electrical activation
of brain’s “pleasure centers”
Secondary Reinforcer: Learned reinforcer
(e.g., money, grades, approval, praise)
Psychology: A Modular Approach to Mind and Behavior, Tenth Edition, Dennis Coon
Chapter 7
More Reinforcer Types
• Token Reinforcer: Tangible secondary
•
reinforcer (e.g., money, gold stars, poker
chips)
Social Reinforcer: Provided by other people
(e.g., learned desires for attention and
approval)
Psychology: A Modular Approach to Mind and Behavior, Tenth Edition, Dennis Coon
Chapter 7
Figure 7.14
Psychology: A Modular Approach to Mind and Behavior, Tenth Edition, Dennis Coon
Chapter 7
Figure 7.16
Psychology: A Modular Approach to Mind and Behavior, Tenth Edition, Dennis Coon
Chapter 7
Feedback and Knowledge of Results
• Information about the effect a response had
• Knowledge of Results (KR): Increased
feedback; informational
Psychology: A Modular Approach to Mind and Behavior, Tenth Edition, Dennis Coon
Chapter 7
Programmed Instruction
• Information is presented in small amounts,
•
•
gives immediate practice, and provides
continuous feedback
Computer-Assisted Instruction (CAI):
Learning is aided by computer-presented
information and exercises
Educational Simulations: Explore imaginary
situations or “microworld” that simulates realworld problems (e.g., “The Sims” computer
simulation)
Psychology: A Modular Approach to Mind and Behavior, Tenth Edition, Dennis Coon
Chapter 7
Figure 7.17
Psychology: A Modular Approach to Mind and Behavior, Tenth Edition, Dennis Coon
Chapter 7
Figure 7.18
Psychology: A Modular Approach to Mind and Behavior, Tenth Edition, Dennis Coon
Chapter 7
Partial Reinforcement
• Reinforcers do NOT follow every response
• Schedules of Reinforcement: Plans for
•
•
determining which responses will be
reinforced
Continuous Reinforcement: A reinforcer
follows every correct response
Partial Reinforcement Effect: Responses
acquired with partial reinforcement are very
resistant to extinction
Psychology: A Modular Approach to Mind and Behavior, Tenth Edition, Dennis Coon
Chapter 7
Schedules of Partial Reinforcement
• Fixed Ratio Schedule (FR): A set number of
•
correct responses must be made to obtain a
reinforcer
Variable Ratio Schedule (VR): Varied number
of correct responses must be made to get a
reinforcer
Psychology: A Modular Approach to Mind and Behavior, Tenth Edition, Dennis Coon
Chapter 7
Schedules of Partial Reinforcement (cont.)
• Fixed Interval Schedule (FI): The first correct
•
response made after a certain amount of
time has elapsed is reinforced
Variable Interval Schedule (VI):
Reinforcement is given for the first correct
response made after a varied amount of time
Psychology: A Modular Approach to Mind and Behavior, Tenth Edition, Dennis Coon
Chapter 7
Figure 7.11
Psychology: A Modular Approach to Mind and Behavior, Tenth Edition, Dennis Coon
Chapter 7
Figure 7.19
Psychology: A Modular Approach to Mind and Behavior, Tenth Edition, Dennis Coon
Chapter 7
Stimulus Control
• Stimuli that consistently precede a rewarded
•
response tend to influence when and where
the response will occur
Operant Stimulus Generalization: Tendency
to respond to stimuli similar to those that
preceded operant reinforcement
Psychology: A Modular Approach to Mind and Behavior, Tenth Edition, Dennis Coon
Chapter 7
Watson & Rayner’s Research with Little Albert
Psychology: A Modular Approach to Mind and Behavior, Tenth Edition, Dennis Coon
Chapter 7
Stimulus Control (cont.)
• Operant Stimulus Discrimination: Occurs
•
when one learns to differentiate between
antecedent stimuli that signal either a reward
or a nonreward
Discriminative Stimuli: Stimuli that precede
reinforced and nonreinforced responses
Psychology: A Modular Approach to Mind and Behavior, Tenth Edition, Dennis Coon
Chapter 7
Punishment
• Punisher: Any consequence that reduces the
•
•
•
frequency of a target behavior
Keys: Timing, consistency, and intensity
Severe Punishment: Intense punishment,
capable of suppressing a response for a long
period
Mild Punishment: Weak punishment; usually
slows responses temporarily
Psychology: A Modular Approach to Mind and Behavior, Tenth Edition, Dennis Coon
Chapter 7
Punishment Concepts
• Aversive Stimulus: Stimulus that is painful or
•
•
•
uncomfortable (e.g., a shock)
Escape Learning: Learning to make a
response to end an aversive stimulus
Avoidance Learning: Learning to make a
response to avoid, postpone, or prevent
discomfort (e.g., not going to a doctor or
dentist)
Punishment may also increase aggression
Psychology: A Modular Approach to Mind and Behavior, Tenth Edition, Dennis Coon
Chapter 7
Figure 7.22
Psychology: A Modular Approach to Mind and Behavior, Tenth Edition, Dennis Coon
Chapter 7
Cognitive Learning
• Higher-level learning involving thinking,
•
•
•
knowing, understanding, and anticipating
Latent Learning: Occurs without obvious
reinforcement and is not demonstrated until
reinforcement is provided
Rote Learning: Takes place mechanically,
through repetition and memorization, or by
learning a set of rules
Discovery Learning: Based on insight and
understanding
Psychology: A Modular Approach to Mind and Behavior, Tenth Edition, Dennis Coon
Chapter 7
Figure 7.23
Psychology: A Modular Approach to Mind and Behavior, Tenth Edition, Dennis Coon
Chapter 7
Figure 7.24
Psychology: A Modular Approach to Mind and Behavior, Tenth Edition, Dennis Coon
Chapter 7
Modeling or Observational Learning (Albert
Bandura)
• Occurs by watching and imitating actions of
another person or by noting consequences of
a person’s actions
– Occurs before direct practice is allowed
• Model: Someone who serves as an example
Psychology: A Modular Approach to Mind and Behavior, Tenth Edition, Dennis Coon
Chapter 7
Steps to Successful Modeling
• Pay attention to model and remember what
•
•
•
•
was done
Reproduce modeled behavior
If a model is successful or his/her behavior is
rewarded, behavior more likely to recur
Once response is tried, normal reinforcement
determines whether it will be repeated
Bandura created modeling theory with classic
Bo-Bo Doll (inflatable clown) experiments
Psychology: A Modular Approach to Mind and Behavior, Tenth Edition, Dennis Coon
Chapter 7
Figure 7.26
Psychology: A Modular Approach to Mind and Behavior, Tenth Edition, Dennis Coon
Chapter 7
Self-Managed Behavior
• Premack Principle: Any high frequency
•
response used to reinforce a low frequency
response (e.g., no Halo 2 or GTA until you
finish your homework)
Self-Recording: Self-management based on
keeping records of response frequencies
Psychology: A Modular Approach to Mind and Behavior, Tenth Edition, Dennis Coon
Chapter 7
How to Break Bad Habits
• Alternate Responses: Try to get the same
•
•
•
reinforcement with a new response
Extinction: Try to discover what is reinforcing
an unwanted response and remove, avoid, or
delay the reinforcement
Response Chains: Break up the chain of
events that leads to an undesired response
Cues and Antecedents: Try to avoid, narrow
down, or remove stimuli that elicit the bad
habit
Psychology: A Modular Approach to Mind and Behavior, Tenth Edition, Dennis Coon
Chapter 7
Behavioral Contracting
• Behavioral Contract: Formal agreement
•
•
•
stating behaviors to be changed and
consequences that apply; written contract
State a specific problem behavior you wish to
control or a goal you wish to achieve
State the rewards you will get, privileges you
will forfeit, or punishments you will get
Type the contract, sign it, and get a person
you trust to sign it