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PowerPoint  Lecture Notes Presentation Chapter 9: Learning

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1 PowerPoint  Lecture Notes Presentation Chapter 9: Learning

2 Lecture Overview Classical Conditioning Operant Conditioning
Cognitive-Social Learning The Biology of Learning Using Conditioning and Learning Principles

3 Introductory Definitions
Learning (relatively permanent change in behavior or mental processes resulting from practice or experience) Conditioning (process of learning associations between environmental stimuli and behavioral responses)

4 Classical Conditioning
Pavlov’s Contribution Classical Conditioning: learning that occurs when a neutral stimulus (NS) becomes paired (associated) with an unconditioned stimulus (UCS) to elicit a conditioned response (CR)

5 Pavlov’s Original Experiment

6 Classical Conditioning--Key Terms
Neutral Stimulus (NS): stimulus that, before conditioning, doesn’t naturally bring about the response of interest Unconditioned Stimulus (UCS): stimulus that elicits an UCR occurring without previous conditioning Unconditioned Response (UCR): unlearned reaction to an UCS occurring without prior conditioning

7 Classical Conditioning--Key Terms (Continued)
Conditioned Stimulus (CS): previously NS that, through repeated pairings with an UCS, now causes a CR Conditioned Response (CR): learned reaction to a CS occurring because of previous repeated pairings with an UCS

8

9 Why Study Psychology? It Helps You Understand Popular Cartoons!

10 Classical Conditioning (Continued)

11 Classical Conditioning (Continued)
John B. Watson Conditioned Emotional Response (CER): Watson demonstrated how emotions can be classically conditioned to a previously neutral stimulus (NS).

12 Watson and Rayner Created a Fear of Rats (a CER) in Little Albert

13 Classical Conditioning’s Basic Principles
ALL Snakes bite! Stimulus Generalization: learned response to stimuli that are similar to the original conditioned stimuli (CS)

14 Classical Conditioning’s Basic Principles (Continued)
Now I know that some snakes are nice! Stimulus Discrimination: learned response to a specific stimulus, but not to other, similar stimuli

15 Extinction: gradual weakening or suppression of a previously conditioned response (CR)
Spontaneous Recovery: reappearance of a previously extinguished conditioned response (CR)

16 Classical Conditioning’s Basic Principles (Continued)
Higher-Order Conditioning: neutral stimulus (NS) becomes a conditioned stimulus (CS) through repeated pairings with a previously conditioned stimulus (CS)

17 Classical Conditioning’s Basic Principles (Continued) Higher-Order Conditioning

18 Operant Conditioning Operant Conditioning:
learning in which voluntary responses are controlled by their consequences

19 Operant Conditioning (Continued)
Thorndike’s Contribution Law of Effect: the probability of an action being repeated is strengthened when followed by a pleasant or satisfying consequence

20 Operant Conditioning (Continued)
Skinner’s Contribution Conducted systematic research using a Skinner box

21 Operant Conditioning’s Basic Principles
Reinforcement: strengthening a response

22 Operant Conditioning’s Basic Principles (Continued)
Primary Reinforcers: normally satisfy an unlearned biological need (e.g., food) Secondary Reinforcers: learned value (e.g., money, praise)

23 External and internal reinforcers
chapter 9 External and internal reinforcers External reinforcers Reinforcers not inherently related to the behavior being reinforced Internal reinforcers Reinforcers inherently related to the behavior being reinforced External reinforcers may undermine internal reinforcers.

24 Operant Conditioning’s Basic Principles (Continued)
Positive Reinforcement: adding (or presenting) a stimulus, which strengthens a response and makes it more likely to recur (e.g., praise)

25 Operant Conditioning’s Basic Principles (Continued)
Negative Reinforcement: taking away (or removing) a stimulus, which strengthens a response and makes it more likely to recur (e.g., headache removed after taking an aspirin)

26 Operant Conditioning’s Basic Principles (Continued)

27 Operant Conditioning’s Basic Principles: Four Partial Schedules of Reinforcement
Fixed Ratio (FR): reinforcement occurs after a predetermined set of responses; the ratio (number or amount) is fixed 2. Variable Ratio (VR): reinforcement occurs unpredictably; the ratio (number or amount) varies

28 Operant Conditioning’s Basic Principles: Four Partial Schedules (Continued)
Fixed Interval (FI): reinforcement occurs after a predetermined time has elapsed; the interval (time) is fixed 4. Variable Interval (VI): reinforcement occurs unpredictably; the interval (time) varies

29 Operant Conditioning’s Basic Principles: Four Partial Schedules (Continued)

30 Operant Conditioning’s Basic Principles: Four Partial Schedules (Continued)
If you want to increase the overall number of responses, which schedule of reinforcement should you choose?

31 Operant Conditioning’s Basic Principles (Continued)
Shaping: reinforcement is delivered for successive approximations of the desired response

32 Operant Conditioning’s Basic Principles (Continued)
Punishment: weakening a response

33 Operant Conditioning’s Basic Principles (Continued)
Positive Punishment: adding (or presenting) a stimulus that weakens a response and makes it less likely to recur (e.g., shouting)

34 Operant Conditioning’s Basic Principles (Continued)
Negative Punishment: taking away (or removing) a stimulus that weakens a response and makes it less likely to recur (e.g., restriction)

35 chapter 9 Punishment The process by which a stimulus weakens or reduces the probability of the response that it follows. Primary punishers are inherently punishing. Secondary reinforcers are stimuli that have acquired punishing properties through associations with other punishers.

36 Types of punishment Positive punishment Negative punishment
chapter 9 Types of punishment Positive punishment When an unpleasant consequence follows a response, making the response less likely to recur. Negative punishment When an pleasant consequence is removed following a response, making the response less likely to recur.

37 chapter 9 Your turn Your first time camping in the woods, you are bitten over 45 times by mosquitoes, resulting in lots of swollen, itchy bumps on your arms, legs, and back. You never want to go camping again. What kind of consequence did you confront on your first camping experience? 1. Positive reinforcement 2. Negative reinforcement 3. Positive punishment 4. Negative punishment

38 chapter 9 Your turn Your first time camping in the woods, you are bitten over 45 times by mosquitoes, resulting in lots of swollen, itchy bumps on your arms, legs, and back. You never want to go camping again. What kind of consequence did you confront on your first camping experience? 1. Positive reinforcement 2. Negative reinforcement 3. Positive punishment 4. Negative punishment

39 Side Effects of Punishment
Judging by this woman’s expression, is she experiencing an example of increased aggression, passive aggressiveness, avoidance behavior, modeling, temporary suppression, or learned helplessness?

40 Cognitive-Social Learning
Cognitive-Social Theory:  emphasizes the roles of thinking and social learning in behavior

41 Cognitive-Social Learning (Continued)
Kohler’s chimps demonstrated insight learning (sudden understanding of a problem that implies the solution).

42 Cognitive-Social Learning (Continued)
Tolman’s rats built a cognitive map (a mental image of a three-dimensional space). They also displayed latent learning (hidden learning that exists without behavioral signs).

43 Cognitive-Social Learning (Continued)
Observational Learning: learning new behaviors or information by watching others Bandura's Famous Bobo Doll study

44 Observational Learning and Modeling
Note the increasing bicep circumference of these G.I. Joe action figures. What are the effects of this type of modeling?

45 Cognitive-Social Learning (Continued)
Observational Learning involves four processes: Attention Retention Motor Reproduction Reinforcement

46 The Biology of Learning: Neuroscience and Learning
When we learn something, we experience the creation of new synaptic connections and alterations in many brain structures.

47 The Biology of Learning: Evolution and Learning
Classical Conditioning Taste Aversion: classically conditioned negative associations of food to illness

48 The Biology of Learning: Evolution and Learning (Continued)
Biological Preparedness: built-in (innate) readiness to form associations between certain stimuli and responses Instinctive Drift: conditioned responses shift (or drift) back toward innate response pattern

49 Using Conditioning and Learning Principles
Classical Conditioning can be seen in: Marketing Prejudice Medical Treatments Phobias

50

51 Using Conditioning and Learning Principles (Continued)
Operant Conditioning can be seen in: Prejudice Biofeedback Superstitions

52 Using Conditioning and Learning Principles (Continued)
Cognitive-Social Theory can be seen in: Prejudice Media Influences

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