DAY 7: Operant Conditioning, Schedules, and Cognitive/Learning Perspectives

To understand and digest the material, focus on these key concepts and their distinctions:

1. Operant Conditioning Fundamentals

  • Reinforcement vs. Punishment:

    • Reinforcement: Increases the probability of a behavior.

    • Punishment: Decreases the probability of a behavior.

    • "Positive" vs. "Negative": Refers to adding or removing a stimulus, respectively, not good/bad.

  • Types of Reinforcement:

    • Positive Reinforcement: Adding a desirable stimulus to increase a behavior (e.g., giving a treat for a trick).

    • Negative Reinforcement: Removing an aversive stimulus to increase a behavior (e.g., removing chores for good grades).

  • Types of Punishment:

    • Positive Punishment: Adding an aversive stimulus to decrease a behavior (e.g., a scolding for bad behavior).

    • Negative Punishment: Removing a desirable stimulus to decrease a behavior (e.g., taking away a phone for misbehavior).

2. Conditioning Processes

  • Escape Conditioning: Learning to end an ongoing unpleasant stimulus by performing a behavior (e.g., putting on a seatbelt to stop the annoying beeping).

  • Avoidance Conditioning: Learning to prevent an unpleasant stimulus from occurring by performing a behavior in response to a cue (e.g., putting on a seatbelt before starting the car to avoid the beeping).

3. Schedules of Reinforcement (Persistence in Behavior)

These schedules determine how often and when reinforcement is provided, affecting how quickly behaviors are learned and how resistant they are to extinction.

  • Continuous Reinforcement (CRF): Every instance of the target behavior is reinforced.

    • Effect: Fast learning, but very quick extinction if reinforcement stops.

  • Partial (Intermittent) Reinforcement: Reinforcement is provided only sometimes.

    • Effect: More resistant to extinction than CRF. There are two main types:

    • Ratio Schedules (based on number of responses):

      • Fixed Ratio (FR): Reinforcement after a fixed number of responses (e.g., FR=10FR=10 means reinforcement after every 10 responses).

      • Variable Ratio (VR): Reinforcement after a varying, unpredictable number of responses around an average (e.g., gambling).

    • Interval Schedules (based on time):

      • Fixed Interval (FI): Reinforcement for the first response after a fixed amount of time has passed (e.g., FI=5extminutesFI=5 ext{minutes} means reinforcement for the first response after 5 minutes).

      • Variable Interval (VI): Reinforcement for the first response after a varying, unpredictable time interval around an average (e.g., checking email).

  • Resistance to Extinction (most robust to least):

    1. Variable Interval (VI)

    2. Variable Ratio (VR)

    3. Fixed Interval (FI)

    4. Fixed Ratio (FR)

    5. Continuous Reinforcement (CRF)

4. Biological and Cognitive Influences on Learning

  • Biological Predispositions: Innate tendencies that make certain behaviors or associations easier or harder to learn.

    • Fixed Action Patterns: Instinctive, automatic behaviors not requiring learning (e.g., a spider spinning a web).

    • Preparedness: An evolutionary readiness to form certain associations quickly (e.g., easily developing fear of snakes or spiders).

  • Cognitive Perspectives: Learning involves more than just stimulus-response links; internal mental processes play a crucial role.

    • Latent Learning: Learning that occurs without explicit reinforcement and is only demonstrated later when there is an incentive (e.g., learning a route by driving it daily but only using that knowledge when asked to find the fastest way).

    • Cognitive Maps: Mental representations of physical spaces (e.g., knowing the layout of your home).

    • Expectancies: Organisms form anticipations about outcomes based on past experiences (S-O-R: Stimulus-Organism-Response).

5. Social and Observational Learning

  • Observational Learning: Learning by watching others (models) and imitating their behavior, even without direct reinforcement or punishment to the observer itself.

    • Influenced by whether the observed behavior is rewarded or punished (vicarious reinforcement/punishment).

    • Classic Experiment: Bobo doll studies demonstrating how children imitate aggressive behavior observed in adults.

Summary Takeaways

To consolidate your understanding:

  • Distinguish between reinforcement (increases behavior) and punishment (decreases behavior), and understand that "positive" means adding and "negative" means removing a stimulus.

  • Grasp how different schedules of reinforcement lead to varying rates of learning and resistance to extinction, with partial schedules generally creating more durable behaviors.

  • Recognize that biological factors (like preparedness) influence what we can learn and how easily.

  • Appreciate that cognitive processes (like latent learning, cognitive maps, and expectancies) mean learning isn't just automatic stimulus-response but involves internal mental representations.

  • Understand that much learning occurs socially through observation, without direct experience with rewards or punishments.