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Published byChristian Carpenter Modified over 9 years ago
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Long lasting change in behavior due to experience.
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Learning: relatively permanent state of change in an individual that results from acquiring new knowledge, skills, and/or experience Time One Time Two
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Process of responding less strongly over time to repeated stimuli Simplest form of learning in humans Examples: wearing clothes, chronic snorers
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Process of responding to a stimulus more strongly over time to repeated stimuli Most likely when stimulus is dangerous or irritating Examples: whispering in movie theater, being the partner of a chronic snorer
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Ivan Pavlov Studied Digestion of Dogs. Dogs would salivate before they were given food (triggered by sounds, lights etc…) Dogs must have LEARNED to salivate Realised the process involves pairing a neutral stimulus with one that typically elicits a reflexive behavior After enough trials, the neutral stimulus begins to elicit the behavior
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After repeated trials…
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First thing you need is a unconditional relationship. This is passive learning (automatic…learner does NOT have to think). 4 key components: UNCONDITIONED STIMULUS (UCS) UNCONDITIONED RESPONSE (UCR) CONDITIONED STIMULUS (CS) CONDITIONED RESPONSE (CR)
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A stimulus that elicits an automatic, reflexive response This is unconditional (not learned/trained, occurs prior to the experiment)
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automatic reflexive (natural) response to being exposed to the UCS a behavior that occurs in response to a specific stimulus
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UCS UCR CS With repeated trials… CR
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CS - object we want to teach an association to ◦ initially neutral; does not cause a response (or at least not a relevant one) CR - a behavior previously associated with a non-neutral stimulus that is now elicited by a neutral stimulus ◦ achieved by repeatedly pairing the non- neutral stimulus (UCS) with the neutral stimulus (CS) ◦ the behavior is very similar – what has changed is what it is a response to
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4 key components: UNCONDITIONED STIMULUS (UCS) UNCONDITIONED RESPONSE (UCR) CONDITIONED STIMULUS (CS) CONDITIONED RESPONSE (CR)
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Continued pairing of UCS and CS ◦ Acquisition – Learning phase ◦ Strengthening of CR over time Only the CS given ◦ Extinction: weakening of CR over time ◦ Spontaneous Recovery: reappearance of extinct CR after a delay in exposure to the CS ◦ Renewal Effect: sudden reemergence of CR after extinction when returned to original environment of learned behavior
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After a while, the body begins to link together the neutral stimulus with the UCS. Acquisition
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GeneralizationDiscrimination Something is so similar to the CS that you get a CR. Something so different to the CS so you do not get a CR.
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Dog that bit you Good to generalize fear to this dog Not so good to generalize fear to this dog
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A process through which individuals learn to differentiate among similar stimuli and respond appropriately to each one.
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Advertising: Beer ads paired with attractive women…. Unconditioned Stimulus Unconditioned Response Conditioned Stimulus Conditioned Response Attractive woman Feeling aroused Beer Feeling aroused
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Dislike Extremely NeutralLike Extremely 1 2 3 4 5 6 7 8 9
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Dislike Extremely NeutralLike Extremely 1 2 3 4 5 6 7 8 9
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Disgust Reactions: Fudgey poo experiment Unconditioned Stimulus Unconditioned Response Conditioned Stimulus Conditioned Response Poo Disgust Fudge Disgust
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Delayed Conditioning: present CS, while CS is still there, present UCS. Trace Conditioning: present CS, short break, then present UCS. Simultaneous Conditioning: CS and UCS are presented at the same time. Backward Conditioning: UCS is presented, then CS is presented.
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First Order Conditioning. Bell + meat = salivation. Bell = Salivation. Second Order Conditioning (After first order conditioning has occurred) Light + Bell = Salivation. Light = Salivation.
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When it comes to food being paired with sickness, the conditioning is incredible strong. Even when food and sickness are hours apart. Food must be salient (noticeable.)
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Studied rats and how they make associations. Some associations seem to be adaptive. CSUCSLearned Response Loud NoiseShockFear Loud NoiseRadiation (nausea)Nothing Sweet WaterShockNothing Sweet WaterRadiation (nausea)Avoid Water
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