Transcript Learning Chapter 6 - Mrs. Short's AP Psychology Class

Learning
Chapter 6
AP Psychology
Alice F. Short
Hilliard Davidson High School
Chapter Preview
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Classical Conditioning
Operant Conditioning
Observational Learning
Factors That Affect Learning
Learning and Health and Wellness
Types of Learning
• learning - a systematic, relatively permanent change in
behavior that occurs through experience
• behaviorism – a theory of learning that focuses solely
on observable behaviors, discounting the importance
of such mental activity as thinking, wishing, and hoping
• associative learning / conditioning – learning that
occurs when we make a connection, or an association,
between two events
• observational learning – learning that occurs when a
person observes and imitates another’s behavior
Types of Associative Learning
• classical conditioning – learning process in which a neutral
stimulus becomes associated with a meaningful stimulus and
acquires the capacity to elicit a similar response
• operant conditioning – (a.k.a. instrumental conditioning) a form of
associative learning in which the consequences of behavior change
the probability of the behavior’s occurrence
– operant  references behavior of the ORGANISM
Classical Conditioning: Terminology
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helps to explain involuntary behavior
unconditioned stimulus (UCS)
unconditioned response (UCR)
neutral stimulus (NS)
conditioned stimulus (CS)
conditioned response (CR)
Classical Conditioning: Pavlov
Classical Conditioning: Terminology
• unconditioned stimulus (UCS) – a stimulus that produces a
response without prior learning
• unconditioned response (UCR) – an unlearned reaction
that is automatically elicited by the unconditioned stimulus
• neutral stimulus (NS) – a stimulus that does not elicit an
unconditioned response
• conditioned stimulus (CS) – a previously neutral stimulus
that eventually elicits a conditioned response after being
paired with the unconditioned stimulus
• conditioned response (CR) – the learned response to the
conditioned stimulus that occurs after conditioned
stimulus-unconditioned stimulus pairing
Classical Conditioning: Procedure
• acquisition
– UCS produces a UCR (reflex)
– neutral stimulus (NS) paired with a UCS
– after pairings, NS produces a CR
– the NS has become a CS
• contiguity – time between CS and UCS
• contingency – is CS regularly followed by the
UCS?
Classical Conditioning: Pavlov
• Unlearned/Reflexive
– UCS – meat powder
– UCR – dog salivates
• NS – sound of Pavlov’s bell (prior to pairings with
meat powder)
• Learned
– CS – sound of Pavlov’s bell
– CR – dog salivates
Classical Conditioning: Pavlov
Classical Conditioning
• Generalization
– CRs may appear after various NS that are similar
to the CS
• Discrimination
– CRs appear after the CS but not after other CSs
– discrimination generally learned by presenting
other CSs without the UCS
Classical Conditioning
• Extinction
– CR is weakened by presenting the CS without the UCS
– Pavlov rang the bell but did not present food, and the dog
stopped salivating
• Spontaneous Recovery
– CR recurs after a time delay and without additional learning
– when Pavlov rang the bell the next day, the dog salivated
• Renewal
– recovery of the CR when organism is placed in novel context
Classical Conditioning
• classical conditioning -
Classical Conditioning: Applications
• Phobias
– Watson and Rayner (1920) – Little Albert
– white rat (CS) paired with loud noise (UCS)
• Counterconditioning
– associate CS with new, incompatible CR
– CS paired with new UCS
– aversive conditioning – a form of treatment that
consists of repeated pairings of a stimulus with a very
unpleasant stimulus
• antabuse – a drug treatment for alcoholism since 1940s
Classical Conditioning: Applications
• placebo effect – the effect of a substance or procedure (such as
taking a pill) that is used as a control to identify the actual effects of
a treatment (example: drop in pain)
• immune (disease) and endocrine (hormones) responses
– immunosuppression – a decrease in the production of antibodies,
which can lower a person’s ability to fight disease
– sympathetic nervous system (part of autonomic nervous system that
responds to stress)
• taste aversion
– between taste and nausea
– unique (only 1 pairing required)
• advertising – associative learning
• drug habituation – decreased responsiveness to a stimulus after
repeated presentation
– preparing – body “braces” self
A SHORT Time to Ponder
• How might parents and schools accidently
condition undesirable behaviors? Relate this
to immunosuppression.
• Could you condition yourself to eat healthy?
How?
• What routines do you have that might be
triggering unconscious conditioned
responses? Think habituation and preparing.
A SHORT Activity
• With a partner or group of three, create a
table or diagram in your spiral to explain the
placebo effect using classical conditioning
terminology.
• With the same partner or group of three,
create a table or diagram in your spiral to
explain the advertising of a specific product
using classical conditioning terminology.
Operant Conditioning
• operant conditioning – (a.k.a. a form of
associative learning in which the
consequences of a behavior change the
probability of the behavior’s occurrence
– operant  references behavior of the organism
– better explains voluntary behaviors
– the consequences of a behavior change the
probability of that behavior’s occurrence
Operant Conditioning
• Thorndike’s Law of Effect
– consequence strengthens or weakens a S – R connection
– behaviors (reactions) followed by positive outcomes are
strengthened
– behaviors (reactions) followed by negative outcomes are
weakened
– not technically operant conditioning
– “trial and accidental success”
• B.F. Skinner
– expanded on Thorndike’s work
– named operant conditioning
– shaping (reward approximations of the desired behavior)
• “You have permission to be as smart as a seeing eye dog.”
- Mr. Hickey
B.F. Skinner
• “I did not direct my life. I didn't
design it. I never made decisions.
Things always came up and made
them for me. That's what life is.”
• “Give me a child and I'll shape
him into anything.”
• “The consequences of an act
affect the probability of its
occurring again.”
• “The real problem is not whether
machines think but whether men
do.”
• “Society attacks early, when the
individual is helpless.”
Skinner Box
Skinner Box (1930s)
• Developed by B. F. Skinner, a Skinner box is a chamber that
contains a bar or key that an animal can press or manipulate in
order to obtain food or water as a type of reinforcement.
– recorded each response provided by the animal
– recorded unique schedule of reinforcement that the animal was
assigned
• design of Skinner boxes
– varied depending upon the type of animal and the experimental
variables.
– chamber that includes at least one lever, bar, or key that the animal
can manipulate
• lever is pressed, food, water, or some other type of reinforcement might be
dispensed
– Other stimuli can also be presented including lights, sounds, and
images. In some instances, the floor of the chamber may be
electrified.
• purpose of a Skinner box -could carefully study behavior in a very
controlled environment.
• Example  determine which schedule of reinforcement led to the highest rate
of response in the study subjects
B.F. Skinner
4 Ways to Shape Behavior
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positive reinforcement
negative reinforcement
positive punishment
negative punishment
Comparing Operant Procedures
Operant Conditioning: Reinforcement
• reinforcement – the process by which a rewarding stimulus or event (a
reinforcer) following a particular behavior increases the probability that
the behavior will happen again
• Reinforcement increases behavior.
– positive reinforcement increases behavior
– negative reinforcement increases behavior
• Positive Reinforcement
– behavior followed by rewarding consequence
– rewarding stimulus is “added”
– example: telling joke – listener laughing
• Negative Reinforcement
– behavior followed by rewarding consequence
– aversive (unpleasant) stimulus is “removed”
– example: putting on gloves  cold gone
Operant Conditioning: Reinforcement
• positive reinforcement increases behavior
• negative reinforcement increases behavior
Principles of Reinforcement:
Avoidance Reinforcement
Avoidance Reinforcement – an organism's
learning that it can altogether avoid a negative
stimulus by making a particular response
…by making a particular response, a negative
stimulus can be avoided
Example: previously failed test  studying a
lot in the future  avoid future failing grades
Principles of Reinforcement:
Learned Helplessness
Learned Helplessness - an organism’s learning
through experience with unavoidable negative
stimuli that it has no control over negative
outcomes
…an organism learns it has no control over
negative outcomes
Example: student fails in school whether studies
or not  student gives up on studying  if
student studied now would be successful
(different class, gained additional skills, etc.) but
continues to give up on trying
2 Types of Reinforcers
• Primary Reinforcers
– innately satisfying
– pleasurable w/o learning
– examples: food, water, sexual satisfaction
• Secondary Reinforcers
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learned / conditioned reinforcer
become satisfying through experience (learning)
repeated association with a pre-existing reinforcer
token economy – behaviors are rewarded with tokens
(such as poker chips or stars on a chart) that can be
exchanged later for desired rewards (such as candy or
money)
– examples: grades, paychecks
Schedules of Reinforcement
• Generalization (in operant conditioning)
– performing a reinforced behavior in a different situation
– stimulus “sets the occasion” for the response
– responding occurs to similar stimuli
• Discrimination (in operant conditioning)
– responding appropriately to stimuli that signal that a
behavior will or will not be reinforced
– stimuli signal when behavior will or will not be reinforced
• Extinction (in operant conditioning)
– behavior decreases when reinforcement stops
• Spontaneous Recovery
Schedules of Reinforcement
• schedule of reinforcement – specific patterns
that determine when a behavior will be
reinforced
• Continuous Reinforcement
• Partial Reinforcement (vocabulary)
– fixed  set
– variable  not set / unpredictable
– ratio  #
– interval  time
4 Schedules of Partial Reinforcement
• Fixed Ratio (FR)
– reinforcement follows a set # of behaviors
– not used in casinos (problem / beat system)
• Variable Ratio (VR)
– reinforcement follows an unpredictable # of behaviors (e.g., an
average)
– used in casinos: consistent, but not predictable
– resistant to extinction
• Fixed Interval (FI)
– reinforcement follows behavior that occurs after a set amount of time
has elapsed
– behavior increases before anticipated event
– example: elections
• Variable Interval (VI)
– reinforcement follows behavior that occurs after an unpredictable
amount of time has elapsed
– example: pop quizzes
Schedules of
Reinforcement
Punishment
• punishment decreases behavior.
• Positive Punishment
– behavior followed by aversive consequence
– aversive (unpleasant) stimulus is “added”
• Negative Punishment
– behavior followed by aversive consequence
– rewarding stimulus is “removed”
– example: timeout; jail (freedom removed)
Punishment
• punishment – a consequence that decreases the
likelihood that a behavior will occur
Comparing Operant Procedures
Controversy Over Punishment
• corporal punishment
– used by 70-90% of parents in the U.S.
– correlational research studies
• problems associated with punishment
• why should parents avoid spanking?
• is physical punishment necessary?
Operant Conditioning:
Timing of Consequences
• Timing of Consequences
– immediate versus delayed reinforcement
– immediate versus delayed punishment
– immediate versus delayed reinforcement and
punishment
• obesity; smoking; drinking
Operant Conditioning:
Applied Behavior Analysis
• Applied Behavior Analysis
– behavior modification
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work and school performance
training autistic children
to instruct individuals on effective parenting
to enhance environmentally conscious behaviors
(recycling, not littering)
• to promote workplace safety
• to improve self control
Observational Learning
• learning that occurs when a person observes and
imitates behavior (modeling)
• Albert Bandura – Social Cognitive Theory
• four processes
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attention
retention
motor reproduction
reinforcement
• vicarious reinforcement
• vicarious punishment
Observational Learning:
Bandura’s Model of Observational Learning
• observational learning – learning that occurs
when a person observes and imitates another’s
behavior
Albert Bandura… and Bobo Clowns,
which are creepy…
• Bobo doll experiment (1961, 63) - experiments
conducted by Albert Bandura studying children's
behavior after watching an adult model act
aggressively towards a Bobo doll
– There are different variations
– measured the children's behavior after seeing the
model get rewarded, punished or experience no
consequence for beating up the bobo doll
– empirical demonstration of Bandura's social
learning theory It shows that people not only learn
by being rewarded or punished itself
(behaviorism), they can learn from watching
somebody being rewarded or punished, too
(observational learning)
– important because they sparked many more
studies on the effects of observational learning
• practical implication, e.g. how children can be
influenced watching violent media
Cognitive Factors in Learning:
E.C. Tolhman (1932)
• purposiveness – the idea that much of
behavior is goal-directed
– studying
• behavior does not illustrate purpose (college, etc.)
• Purposive Behavior in Humans
– goal directed
– goal setting
– self-regulation and self-monitoring
Cognitive Factors in Learning
• expectancy learning
– information value
– expectancies – acquired from people’s experience with
their environment
• latent learning / implicit learning – unreinforced
learning that is immediately reflected in behavior
– latent = stored cognitively
– evident when you walk around a new setting to get a “lay
of the land”
– DISCUSSION: How can latent learning and learning the “lay
of the chapter” influence success in AP Psychology?
Cognitive Factors in Learning:
Insight Learning
• insight learning – a form of problem solving in
which the organism develops a sudden insight
into or understanding of a problem
– requires thinking “outside the box”… or “outside
the bun”
• setting aside previous expectations and assumptions
– Wolfgang Kohler
• the stick problem
• the box problem
Cognitive Factors in Learning:
Wolfgang Kohler and Insight Learning
• Wolfgang Kohler
• the box problem and the stick problem
A SHORT Time to Ponder:
Cognitive Factors in Learning
• Do cognitions matter?
• Does learning involve more than environmentbehavior connections?
Other Factors in Learning
• Biological Constraints
– instinctive drift – the tendency of animals to
revert to instinctive behavior that interferes with
learning
– preparedness – the species-specific biological
predisposition to learn in certain ways but not in
others
• taster aversion in humans
• fear of snakes in most animals (b/c they are creepy)
Other Factors in Learning
• Cultural Influences
– classical conditioning, operant conditioning, and
observational learning = universal
– culture 
• influences degree
– example: Mexican American students prefer observational
learning; Euro-American students direct instruction
• influences content (geography, religion, etc.)
Other Factors in Learning:
Psychological Constraints
• Psychological Constraints
– mindset: fixed v. growth
– mindset – the way our beliefs about ability dictate what goals
we set for ourselves, what we think we can learn, and ultimately
what we do learn
• fixed mindset – believe that their qualities are carved in stone and
cannot change
– failure = lack of ability
– … still failing
• growth mindset (incremental theory) - believe their qualities can
change and improve through their effort
– failure = what you need to learn
– … showing growth
• developing a growth mindset
– Understand that you intelligence and thinking skills are not fixed but can
change.
– Become passionate about learning and stretch your mind in challenging
situations.
– Think about the growth mindsets of people you admire.
– Begin now.
Learning and Health and Wellness
• Factors influencing degree of stress
– predictability of stressor
– control over stressor
– improvement of (reduction in) stressor
– outlets for frustration
Chapter Summary
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Explain what learning is.
Describe classical conditioning.
Discuss operant conditioning.
Understand observational learning.
Discuss the role of cognition in learning.
Identify biological, cultural, and psychological
factors in learning.
• Describe how principles of learning apply to
health and wellness.
Chapter Summary
• Learning is a relatively permanent change in
behavior that occurs through experience.
• Classical Conditioning
– association between two stimuli
– terminology: CS, CR, UCS, UCR
– generalization and discrimination
– extinction and spontaneous recovery
– phobias and counterconditioning
Chapter Summary
• Operant Conditioning
– stimulus - response - consequence
– positive and negative reinforcement
– positive and negative punishment
– schedules of reinforcement
• Observational Learning
– attention, retention, motor reproduction, and
reinforcement
Chapter Summary
• Cognitive Factors in Learning
– purposive behavior
– insight learning
• Other Factors in Learning
– biological, cultural, psychological constraints
• Learning and Health and Wellness
– variables aggravating stress