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Unformatted text preview: o unconditioned = unlearned (reflexive) o The UR occurs naturally & automatically in response to the US. US (food) => UR (salivation) CS (tone) => CR (salivation • Conditioned stimulus & response o conditioned = learned o The CR is learned thru the association of the US & CS. Classical Conditioning: Terms & Concepts • Reinforcement … is the pairing of the CS & the US • Extinction … is the disappearance of the CR with repeated presentations of the CS without the US. • Stimulus generalization … occurs when a stimulus similar to the CS produces the CR. • Discrimination … involves learning the difference between the CS and other/similar stimuli. Classical conditioning: Emotions (Watson) • Fear can be classically conditioned • ‘Little Albert’ o US (loud noise) => UR (fear) o CS (white rat) => CR (fear) • What happens when stimulus generalization occurs?...
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- Fall '08
- Classical Conditioning, Learning Classical Conditioning