Classical Conditioning Study Notes

Lecture Slides created by Myers/DeWall/Yost Hammer, Myers’ Psychology for the AP® Course, 4e © 2023 Worth/BFW Publishers

LT 3.7-1: Define learning, and explain some basic forms of learning.
LT 3.7-2: Explain behaviorism's view of learning.
LT 3.7-3: Identify Pavlov, and explain the basic components of classical conditioning.
LT 3.7-4: Explain the processes of acquisition, extinction, spontaneous recovery, generalization, and discrimination in classical conditioning.
LT 3.7-5: Explain why Pavlov’s work remains so important.

Learning: The process of acquiring through experience new and relatively enduring information and behaviors.
Habituation: The decreasing responsiveness with repeated stimulation.
Associative Learning: Learning that certain events occur together. These events may be two stimuli (as in classical conditioning) or a response and its consequence (as in operant conditioning).
Stimulus: Any event or situation that evokes a response.
Respondent Behavior: Behavior that occurs as an automatic response to some stimuli.
Operant Behavior: Behavior that operates on the environment, producing a consequence.
Cognitive Learning: The acquisition of mental information, whether by observing events, by watching others, or through language.

Learning is adaptation to our environment, primarily through association where events occur in sequence.
Learned associations influence habitual behaviors:
- Example: Studies on sea slugs (Aplysia) show habituation as they respond less to repeated stimuli (e.g., water movement).
- Classical Conditioning: Association occurs between two stimuli presented close together, leading to anticipation and involuntary behavior.
- Operant Conditioning: Association is made between behavior and consequences, modifying voluntary behaviors through reinforcement or punishment.

Classical Conditioning: Two stimuli develop a learned response.
- Example: Lightning (Stimulus 1) and Thunder (Stimulus 2) lead to a startled reaction and anticipation of thunder.
Operant Conditioning: Behaviors are strengthened by their consequences.
- Example: Politeness (Behavior) leads to receiving a treat (Consequence).

Classical Conditioning: A type of learning where two or more stimuli are linked, causing a conditioned response.
- Pavlov's experiment: A tone (neutral stimulus) elicits drooling (conditioned response) due to anticipation of food (unconditioned stimulus).
Behaviorism:
- Conforms to two principles: (1) Psychology is an objective science; (2) Studies behavior without reference to mental processes.
- While there is agreement on the need for objectivity, there is disagreement on excluding mental processes.

Key Components:
- Neutral Stimulus (NS): A stimulus that elicits no response prior to conditioning.
- Unconditioned Response (UCR): An unlearned, naturally occurring response to an unconditioned stimulus.
- Unconditioned Stimulus (UCS): A stimulus that naturally and automatically triggers an unconditioned response.
- Conditioned Response (CR): A learned response to a previously neutral stimulus.
- Conditioned Stimulus (CS): Originally neutral stimulus that triggers a conditioned response after association with an unconditioned stimulus.

Pavlov's investigation of digestive systems led to the discovery of classical conditioning.
- Noted that dogs would salivate when food was presented but also in response to the food dish or deliverer.
- Process:
- Food (UCS) causes salivation (UCR) naturally.
- Pairing food with a tone (NS) conditions the tone into a CS, eliciting salivation (CR) even without food.

Acquisition: The initial phase of classical conditioning when the neutral stimulus is paired with the unconditioned stimulus to trigger a conditioned response.
Higher-Order Conditioning: Procedure where the CS from one experience is paired with a new NS, creating a secondary CS (often weaker).
- Example: A tone predicting food may lead an animal to respond to a light associated with the tone.
Extinction: The weakening of a CR when the UCS is no longer presented with the CS.
Spontaneous Recovery: The reappearance of a weakened CR after a pause.

The optimal time between the CS and UCS sequence is about half a second.
The order of presentation is crucial for creating anticipatory responses.
Generalization: The tendency for stimuli similar to a CS to elicit similar responses.
Discrimination: The learned ability to distinguish between a CS and other stimuli not associated with the CS.

Generalization is adaptive (e.g., fearful response generalizing from a moving car to other vehicles).
Discrimination aids survival by allowing differentiation between stimuli.

Pavlov's research laid the foundation for objective study of learning processes.
Classical conditioning is a basic learning method observed across species and has informed neuroscience on neural circuits that link CS and UCS.

The influence of classical conditioning extends to real-world applications such as advertising and emotional conditioning through pairing products with positive stimuli.

Check Understanding Questions:
- Explain the difference between associative and cognitive learning with illustrations.
- Discuss challenges in breaking habits that are paired with pleasant experiences.
- Provide personal examples of classical or operant conditioning from childhood.

Reflect on how Pavlov's findings about anticipation and learning have shaped modern psychological practices and aided in understanding behaviors across species.