Lecture on Behaviorism

Introduction to Behaviorism

• Originated in late 19th century Russia
• Key figure: Ivan Pavlov

Ivan Pavlov and Classical Conditioning

• Discovery: Pavlov observed dogs salivating without food present.
• Classical Conditioning: Learning process involving an unconditioned stimulus and a neutral stimulus.
  • Unconditioned Stimulus: Food, naturally causing dogs to salivate.
  • Neutral Stimulus: A bell, paired with food to provoke drooling in dogs.
  • Experiment Outcome: Dogs began to salivate at the sound of the bell alone, illustrating the creation of a conditioned response.

John B. Watson and Behaviorism

• Contribution: Expanded on Pavlov's work in the 20th century.
• Belief: Psychology should be based on observable facts.
• Famous Experiment: "Little Albert"
  • Objective: Condition a fear response in a child using classical conditioning.
  • Method: Pairing a white rat with loud noises.
  • Unconditioned Stimulus: Loud noise, naturally causing fear.
  • Conditioned Stimulus: White rat, originally neutral.
  • Conditioned Response: Fear of the rat, developed after association with loud noise.
  • Ethics: Experiment considered unethical by modern standards.

B.F. Skinner and Operant Conditioning

• Background: American scientist, born in 1904, built on classical conditioning principles.
• Operant Conditioning: Focuses on reinforcement and punishment to change behavior.
  • Key Difference from Classical Conditioning: Involves voluntary behavior change motivated by consequences.
  • Reinforcement: Encourages desired behavior.
  • Punishment: Discourages unwanted behavior.
• Famous for: Experiments with animals using the "Skinner Box".

Conclusion

• Behaviorism focuses on observable behavior changes through conditioning.
• Importance in psychology: Provides a foundation for understanding learning processes based on observable evidence.