1. Discrimination Ch 12

2. TODAY DISCRIMINATION TRAINING STIMULUS CONTROL DIFFERENCE BETWEEN DIFFERENTIAL REINFORCEMENT AND DISCRIMINATION TRAINING PROCEDURES

3. Reinforcement Before After Behavior

4. Differential Reinforcement of 2 Response Classes Before John has no praise Behavior John hits ball with no skill Behavior John hits ball with some skill After John receives no praise After John receive praise Reinforcement Extinction

5. OPEN

6. NO OPEN SIGN

7. OPEN What happens when the open sign is present?

8. Reinforcement Before No open door After Door opens Behavior Push on door OPEN

9. Reinforcement Before No open door After No open door Behavior Push on door What if the store is closed? OPEN

10. Reinforcement-Based Discrimination Before NO OPEN SIGN OPEN SIGN After Behavior SS SDSD

11. Reinforcement-Based Discrimination Before No open door NO OPEN SIGN After No open door After Open door Behavior Push on door SS SDSD OPEN SIGN

12. Reinforcement-Based Discrimination Before No open door “CLOSED” SIGN After No open door After Open door Behavior Push on door SS SDSD OPEN SIGN

13. Discriminative Stimulus (S D ) A stimulus in the presence of which a particular response will be reinforced Examples– Brelandless target, “open” sign, smile on a face OPEN SIGN

14. OPEN SDSD

15. S-delta (S  ) A stimulus in the presence of which a particular response will not be reinforced

16. “Closed” sign SS

17. Reinforcement-Based Discrimination Before Chicken has no food S  Breland S D Brelandlesss target After Chicken has no food After Chicken has food Behavior Chicken pulls the trigger

18. Reinforcement-Based Discrimination Before Student has n tokens S  NOT written word “shoe” S D Written word “shoe” After Student has n tokens After Student has n + 1 tokens Behavior Student says “shoe”

19. Reinforcement-Based Discrimination Before Child has no cookie S  No S D After Child has no cookie After Child has cookie Behavior Child asks for cookie

20. Reinforcement-Based Discrimination Before Student has no answer After Student has no answer After Student has answer Behavior Student asks questions SDSD SS

21. Discrimination Training Procedure Reinforcing a response in the presence of one stimulus and extinguishing it in the presence of another stimulus. SDSD

22. Discrimination Training Procedure Reinforcing a response in the presence of one stimulus and extinguishing it in the presence of another stimulus. SS

23. Discrimination Training Procedure Reinforcing a response in the presence of one stimulus and extinguishing it in the presence of another stimulus. SDSD

24. Discrimination Training Procedure Reinforcing a response in the presence of one stimulus and extinguishing it in the presence of another stimulus. SS

25. Discrimination Training Procedure Reinforcing a response in the presence of one stimulus and extinguishing it in the presence of another stimulus. SDSD

26. Stimulus discrimination (stimulus control) The occurrence of a response more frequently in the presence of one stimulus than in the presence of another, usually as a result of a discrimination training procedure SDSD

27. Discrimination training vs. Response Differentiation (differential reinforcement procedure) How are these different EXAMPLE: lever pressing by a water deprived mouse

28. Differential Reinforcement vs. Stimulus Discrimination One StimulusTwo Stimuli One Response Class No differentiation or discrimination Stimulus discrimination Two Response Classes Response differentiation Combined differentiation & discrimination

29. No differential reinforcement and no stimulus discrimination Does not matter if light is off or if force is weak, give water reinforcer for every lever press

30. Reinforcement Before Rudolph has no water After Rudolph has water Behavior Rudolph presses lever

31. Differential Reinforcement vs. Stimulus Discrimination One StimulusTwo Stimuli One Response Class No differentiation or discrimination Stimulus discrimination Two Response Classes Response differentiation Combined differentiation & discrimination

32. Differential Reinforcement What matters? Only the force Light off does not matter If presses with 20g of force, the water reinforcer is delivered

33. Differential Reinforcement of 2 Response Classes Before Rudolph has no water Behavior Rudolph uses < 20g of force Behavior Rudolph used 20 grams of force After Rudolph has no water After Rudolph has water Reinforcement Extinction

34. Differential Reinforcement vs. Stimulus Discrimination One StimulusTwo Stimuli One Response Class No differentiation or discrimination Stimulus discrimination Two Response Classes Response differentiation Combined differentiation & discrimination

35. Discrimination What matters? Only if light is on, even if force is weak, if presses lever, the water reinforcer is delivered

36. Reinforcement-Based Discrimination Before Rudolph has no water SS SDSD After Rudolph has no water After Rudolph has water Behavior Rudolph presses lever

41. Discriminated Reinforcement Before SS SDSD After Behavior M270 presses the lever

42. Discriminated Reinforcement Before No food S  Light off S D Light on After No food After Food Behavior M270 presses the lever

43. Discriminated Reinforcement Before No food S  Light off S D Light on After No food After Food Behavior M270 presses the lever Establishing Operation: Food deprivation

44. Discriminated Reinforcement Before No cookie S  Mom frowning S D Mom smiling After No cookie After Cookie Behavior Joe asks for cookie

45. Discrimination and Verbal Behavior A discrimination training procedure can be used to establish correct verbal responses Correct color naming

46. Verbal Behavior Tacts – naming or labeling

47. Tact Contingency Before Child has no snack S  Green car S D Red car After Behavior Child says, “this is a red car”

48. Verbal Behavior Mand – a request that is reinforced by receiving what has been requested

49. Incidental teaching A teacher requires that a student emit the proper form of a request before reinforcing that request, in the student’s regular environment.

50. Mand Contingency Before Child has no red car S  Green car S D Red car After Behavior Child asks, “May I have the red car?”

51. Prompt A supplemental stimulus that raises the probability of a correct response. Types of prompts Verbal instructions Modeling Physical guidance

52. Undiscriminated reinforcement contingency VS. Discriminated reinforcement contingency

53. Undiscriminated reinforcement contingency There is no sdee associated with the reinforcement contingency

54. Discriminated reinforcement contingency The reinforcement contingency is in operation only when the sdee is present, not when the sdelta is present. If a response is never reinforced, that is plain old extinction.

55. TESTS, pg 225 Criteria for diagramming discriminated contingencies Sdelta contingency test Same before condition test Response test Extinction/recovery test Operandum test Different before condition test