Learning

Learning

Types of Learning • Classical Conditioning • Operant Conditioning • Observational Learning

Types of Learning • Classical Conditioning • Pavlov, Garcia • Operant Conditioning • Skinner, Watson • Observational Learning • Bandura

Defining Learning • A change in knowledge or behavior that results from experience.

Pavlov’s Apparatus • Harness and mouth tube help keep dog in a consistent position to gather uncontaminated saliva samples

Before Conditioning • Before Stimuli Are Paired • Unconditioned Stimulus (UCS) elicits Unconditioned Response (UCR) • Meat elicits salivation • Neutral stimulus (NS) elicits no particular response • The bell does not lead to a particular response

During Conditioning • Conditioning: Neutral Stimulus (NS) is paired with the Unconditioned Stimulus (UCS) • Bell rings, then meat powder is delivered • This pairing happens a number of times (trials)

After Conditioning • After several trials, when the bell rings, the dog salivates (NO FOOD NEEDED!) • The Bell is now a Conditioned Stimulus (CS) • Salivation is a Conditioned Response (CR)

Let’s take a moment to recap

Classical Conditioning Terms • Acquisition • Formation of a learned response to a stimulus through presentation of an unconditioned stimulus • Extinction • Elimination of a learned response by removal of the unconditioned stimulus • Generalization • When the classically conditioned reaction occurs to other (similar) stimuli

Classical conditioning links horror movie music to fear Fear Gore UCR UCS

Classical conditioning links horror movie music to fear Scary Music Fear Gore UCR NS UCS

Classical conditioning links horror movie music to fear Scary Music Fear Gore UCR NS UCS Scary Music Fear CR CS

Learning Factors • Number of pairings • Reliability of CS in predicting UCS • Occurrence of CS just before UCS

Timing of CS before UCS

Prepared Classical Conditioning • Organisms seem predisposed to make certain associations e. g., nausea creates taste aversions Ex: drinking Ex: Garcia

Learning

Learning

Presentation Transcript

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