2007-11-23

2007-11-23 - 2007-11-22Psych December ExamMonday, December...

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Unformatted text preview: 2007-11-22Psych December ExamMonday, December 10th, 9am-12pmPag-Si SSC 3024Learning Human AdaptationThe many faces of learningMemes social transmission of human change of behaviour and psychologyHabituation and SensitizationHabituationoDecline in response to a stimulus once it has become familiar (repeated exposure)Ex. City noisesoOutcome: attend to novel stimuli more than familiar adaptiveSensitization or DishabituationoSudden or novel stimulation increases response to a familiar stimulusEx. Hearing a gunshot in cityoOutcome: attend to possibility of new circumstances as a result of sudden changeThe California Sea Snail AplysiaHabituates to water jetAfter shock dishabituates or sensitizes to water jetNeural Impact of Learning in AplysiaoWell habituated or sensitized sea snails display actual physical changes in size and number of synapses that correspond to relatively permanent change in behaviouroHabituation fewer synapsesoSensitization more synapsesClassical Conditioning: A Simple but Powerful Learning MechanismMaking linksIvan PavlovoStudied salivary responses in dogsIs a natural response no learning involvedoNoted that dogs salivated at sounds (Ex. Footsteps, tone)How did the association with the tone come about?Basic Principles of Classical ConditioningoLearn to associate two stimuli S-S paringOne stimulus elicits a response that is similar to the one that was originally elicitedoAcquisition of the associationPeriod during which association is being learnedFirst stimulus elicits a response without learning prewiredSecond, previously neutral stimulus comes to elicit similar responseClassic Conditional AcquisitionUnconditioned Stimulus (UCS)oStimulus that elicits a reflexive or innate unconditioned response (UCR)...
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2007-11-23 - 2007-11-22Psych December ExamMonday, December...

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