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Lec- Chapter 6.docx

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Ashley Waggoner Denton

Lec- Chapter 6 10/9/2012 7:16:00 AM Learning: Pavlov? That rings a bell! (Associating stimuli with other things) Learning: an enduring change in behavior, resulting from experience Classical Conditioning: a type of learning in which a neutral stimulus comes to elicit a reflexive response because it has become associated with a stimulus that already produces that response  Before Conditioning: UCS (food in mouth) o an unconditioned stimulus produces an unconditioned response (UCR) o a neutral stimulus produces no salivation response  During Conditioning: Neutral stimuls + UCS (food in mouth) o the conditioned stimulus is repeatedly presented jus after the neutral stimulus. The unconditioned stimulus continues to produce an unconditioned response.  After Conditioning: CS (tone) -> CR (salivation) o the neutral stimulus alone now produces a conditioned response (CR) thereby becoming a conditioned stimulus (CS)  Acquisition: The gradual formation of an association between the conditioned and unconditioned stimuli  Extinction: A process in which the conditioned response is weakened when the conditioned stimulus is repeatedly presented without the unconditioned stimulus  Spontaneous recovery: A process in which a previously extinguished response re-emerges following presentation of the previous stimulus  Stimulus Generalization: occurs when stimuli that are similar but not identical to the conditioned stimulus produce the conditioned response o ringing bell and different bell still cause dog salivation  stimulus discrimination: a differentiation between two similar stimuli when only one of them is consistently associated with the unconditioned stimulus o ringing bell signals food, quiet bell does not signal food (therefore does not salivate)  Second order conditioning: when something is consistently paired with the conditioned stimulus and leads to a conditioned response o bulb goes on with ringing bell -> ringing bell causes dog to salivate  Phobias: are acquired fear that are out of proportion and are out of proportion to the real threat o bit by dog in childhood and now scared of dogs o dragon in Harry Potter
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