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Lecture 11

Lecture 11 + Textbook Chapter 7.pdf

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PSYC 101
Michael Souza

Lecture 11 LearningTextbook Chapter 7 Intro to learningAssociative learn associations links w things in the enviroSmuliValence valence good or badHelps us seek out what is good or bad 1 CLASSICAL CONDITIONINGallows a neutral smulus to gain signicance and meaning thru learningClassical condion have an uncondioned smulus that results in an uncondioned response Associate two or more products with one that creates a responseAssociaon are learned unconsciously unaware of the linkIvan Pavlov 18491936 digestion and salivaon experiment Nobel Prize in MedicineNeedle indogssalivarygland saliva drips out into a tube collect and studySalivaon reex when you salivate at the touch of foodDogs ancipated and presalivatedSound metronome was presented before and during arrival of meatSound alone soon made the dog droolthen they drooled as much for the ticking as they would w foodNew response conditioned reex thought he discovered how animals learned In general 1 Before condioning uncondioned stimulus food uncondioned response salivation 2 Before condioning Neutral smulus tuning fork no condional response 3 During conditioning Co present conditioned smulus fork w uncondioned stimulus food to give uncondioned response salivation 4 After condioning Conditioned stimulus fork conditioned response salivation The process Very quickAcquision learning that the tuning forkfood learning the associaon is meaningfulExtinction unlearning that the tuning forkfood the meaning of the associaon is lost as quickly the associaon is learnt it can be lost Aer exncon learning can sll occur at rst spontaneous recover may be weakerFirst Spontaneous recovery 24hrs latermore salivation than very rst time extincon occurs after Second Spontaneous recovery another 24hrs later more salivation than very first time less than the day before though exnction occurs aerResponsiveness to similar condioning stimuli o Generalization If food given at a specific frequency more likely to respond to sounds that are similar furtherfrom frequency less response but still responding o Discrimination discriminating bw di sounds Classical condioning and phobiasphobia Intense and irraonal fear of something 1 bad experience seeing others afraid can be enoughjust imagining something happening can create an associaon and a phobiaEliminang phobias Behavioural approach exposure therapy think about it see it touch it expose it slowly overtime andshowyouthatitsnotabigthing Lile AlbertOtherssaidyoucanttrainsomeonetobeafraid of somethingBefore not afraid of furry animalsCo presented a loud sound and furry animals when he reached they made noiseCondioned to fear white rats whether the noise was presented or not and other furry animalsGeneralizaon fear of one thing leading to fear of the same group of thingsJohn Watsondidntbelievethatemotionsmind exists everything is based on response to environment
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