5 Behaviorsit Perspectives

Behaviorist Perspective

  • Key Figures: Pavlov, Thorndike, Skinner

Overview of Behaviorism

  • Behaviorism emphasizes the study of observable, measurable behavior.

  • It posits that behavior primarily results from conditioning and reinforcement (rewards and punishment).

Pavlov's Classical Conditioning

  • Ivan Pavlov: Russian psychologist famous for classical conditioning.

  • Experiment: Involved a dog, meat, and a bell to study salivation and digestion.

  • Definition: Classical conditioning is associating a naturally existing stimulus with a previously neutral stimulus.

Four Components of Conditioning

  1. Unconditioned Stimulus (US): Triggers a natural response without conditioning.

  2. Unconditioned Response (UR): The natural response to the US.

  3. Conditioned Stimulus (CS): Initially neutral stimulus that becomes associated with the US.

  4. Conditioned Response (CR): Learned response to the CS.

The Classical Conditioning Process

Before Conditioning

  • US (food) naturally causes UR (salivation).

  • NS (bell) does not cause salivation.

During Conditioning

  • NS is paired with US; e.g., bell + food.

  • Dog begins to salivate to the NS.

After Conditioning

  • NS becomes CS, causing CR (salivation) without US.

Extensions of Conditioning Concepts

  • Stimulus Generalization: Salivation to similar sounds.

  • Extinction: Salivation ceases when bell is no longer paired with food.

  • Spontaneous Recovery: Extinct responses can be temporarily recovered.

  • Discrimination: Ability to distinguish between similar stimuli.

  • Higher-order Conditioning: Secondary stimulus (e.g., light) paired with CS to elicit CR.

Implications of Classical Conditioning

  • Useful in behavior modification (e.g., addiction treatments).

  • Can enhance or hinder learning in educational settings.

  • Example: Positive association with going to school (CS) leading to good feelings (CR).

Thorndike's Connectionism Theory

  • Edward L. Thorndike: Established the S-R framework in behavioral psychology.

  • Learning results from forming associations between stimuli and responses.

Laws of Connectionism

  1. Law of Effect: Connections strengthened by positive consequences; weakened by negative.

  2. Law of Exercise: Frequent practice strengthens or weakens S-R bonds.

  3. Law of Readiness: Learner's readiness affects learning bonds.

  4. Law of Primacy: First learning experiences make lasting impressions.

  5. Law of Recency: Recently learned information is easily remembered.

  6. Law of Intensity: Vivid experiences are less likely to be forgotten.

Skinner's Operant Conditioning

  • B.F. Skinner: Focused on operant behavior and modification through reinforcement and punishment.

  • Definition: Operant conditioning modifies behavior by associating it with consequences.

Key Elements of Operant Conditioning

  • Behavior Shaping: Gradually guiding behavior toward a desired outcome through reinforcement.

  • Reinforcement: Increases desired behaviors; can be positive (adding a pleasant stimulus) or negative (removing an aversive stimulus).

  • Punishment: Decreases undesired behaviors; can be positive (adding an aversive stimulus) or negative (removing a pleasant stimulus).

Summary of Reinforcement and Punishment

  • Positive reinforcement: Adds pleasant stimulus (e.g., praise).

  • Negative reinforcement: Removes unpleasant stimulus (e.g., taking away stress).

  • Positive punishment: Adds unpleasant stimulus (e.g., extra chores).

  • Negative punishment: Removes pleasant stimulus (e.g., favorite toy).

Principles of Reinforcement

  • Behavior positively reinforced tends to recur; intermittent reinforcement is effective.

  • Information should be in small amounts to facilitate reinforcement.

  • Generalization occurs across similar stimuli, aiding secondary conditioning.