Discrimination

1. Discrimination Ch 12

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

3. Reinforcement After Before Behavior

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

5. OPEN

6. NO OPEN SIGN

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

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

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

10. Reinforcement-Based Discrimination SD OPEN SIGN After Behavior Before SD After NO OPEN SIGN

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

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

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

14. SD OPEN

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

16. SD “Closed” sign

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

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

19. Reinforcement-Based Discrimination  After Child has cookie SD  Behavior Child asks for cookie Before Child has no cookie After Child has no cookie SD No 

20. Reinforcement-Based Discrimination After Student has answer SD Behavior Student asks questions Before Student has no answer After Student has no answer SD

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

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

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

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

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

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 SD

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

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 After Rudolph has water Before Rudolph has no water Behavior Rudolph presses lever

31. Differential Reinforcement vs. Stimulus Discrimination

32. Differential ReinforcementWhat 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 Reinforcement Behavior Rudolph used 20 grams of force After Rudolph has water Before Rudolph has no water Behavior Rudolph uses < 20g of force After Rudolph has no water Extinction

34. Differential Reinforcement vs. Stimulus Discrimination

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

36. Reinforcement-Based Discrimination SD After Rudolph has water Before Rudolph has no water Behavior Rudolph presses lever After Rudolph has no water SD

41. Discriminated Reinforcement SD After Before Behavior M270 presses the lever After SD

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

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

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

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 SD Red car After Before Child has no snack Behavior Child says, “this is a red car” After SD Green 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 SD Red car After Before Child has no red car Behavior Child asks, “May I have the red car?” After SD Green car