Psychology of Learning EXP4404 Chapter 7: Punishment Dr. Steve Topics Covered Positive & Negative Punishment Variables Affecting Punishment Contingency Contiguity Intensity Opposing Reinforcers Theories of Punishment Problems with Punishment Alternatives Types of Punishment Positive Punishment (Type I) Negative Punishment (Type II or Penalty Training) Variables Affecting Punishment Contingency Variables Affecting Punishment Contiguity Variables Affecting Punishment Punisher Intensity Variables Affecting Punishment Progressive increase of intensity - Variables Affecting Punishment Progressive increase of intensity - Group 1 Mild Shock Trial 1 Group 2 No Shock Trial 1 335 volts Trial 750 335 volts Trial 750 Rats run at same pace Rats running is inhibited Variables Affecting Punishment Previous and Concurrent Reinforcement of Punished Behavior Variables Affecting Punishment Punishment works best when it is: Variables Affecting Punishment Alternative Sources of Reinforcement – Theories of Punishment Disruption Theory (Skinner & others) – Passive Avoidance type theory Theories of Punishment Two Process Theory Theories of Punishment One Process Theory (Thorndike & others) – Law of Effect Premack Principle applied to punishment Why Punish? Lovaas study with autistic children 400 No Punishment Shock + “No” “No” Freq of 300 selfdestructive acts 200 100 1 15 16 17 18 19 20 21 22 23 24 Day Criticisms of Punishment Skinner and others often opposed the use of punishment because: Problems with Punishment Escape/Avoidance Aggression Apathy Abuse Imitation of Punisher Alternatives to Punishment Response Prevention Extinction Differential Reinforcement DR0 – differential reinforcement of zero responding DRL – diff reinf of low rate DRI – diff reinf of incompatible behavior Reinforcement (pos or neg) vs Punishment (Type I or II)? 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. Police pulling drivers over and giving prices for buckling up Suspending a basketball player for committing a flagrant foul A soccer player rolls her eyes at a teammate who delivered a bad pass A child snaps her fingers until her teacher calls on her A hospital patient is allowed extra visiting time after eating a complete meal Receiving a city utility discount for participating in a recycling program Grounding a teenager until his or her homework is finished Scolding a child for playing in the street A prisoner loses TV privileges for one week for a rule violation A parent nagging a child to clean up her room A rat presses a lever to terminate a shock or a loud tone A professor gives extra credit to students with perfect attendance A dog is banished to his doghouse after soiling the living room carpet A prisoner is “water boarded” until he confesses A young child receives $5 for earning good grades in school A mother smiles when her child utters “Mama” A child is put into “time out” for misbehaving Employee of the month gets a reserved parking space At a party, a husband becomes sullen when his wife flirts with a colleague A woman watching a football game offers her child candy to play quietly