PSY 150A1 Lecture Notes - Lecture 11: Systematic Desensitization, Cyclophosphamide, Little Albert Experiment
27 Sep 2016
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Learning: lasting change in thought/behavior due to experience: basis of adaptability. Conditioning: learning associations (mental pairings) between events: eg. Dog gets excited when owner picks up leash. In time, stimulus b produces that same response by itself. Dogs salivated at sight of food dish, person who brought food, etc. Unconditioned stimulus (us) : stimulus that automatically elicits a response (food) Automatic, reflexive response to us (salivation due to food) Conditioned stimulus (cs): originally neutral stimulus that gains meaning through pairings with us (tone) Leash doesn"t mean anything to dog at first, but eventually leash = walks so the dog starts getting excited. Roommate jumps out of the way after hearing sound of button and then getting shot with the nerf gun. Extinction: eliminating cr (salivation to tone) by repeatedly presenting cs (tone) without us (food) Spontaneous recovery: reappearance, after a pause, of extinct cr. Dog will get excited about bell after not hearing the bell for a while.
