Class Notes (807,350)
Canada (492,715)
Psychology (3,452)
PSY100H1 (1,603)


2 Pages
Unlock Document

University of Toronto St. George
Alison Luby

LEARNING – any enduring change in behavior, resulting form experience Basics of Classical Conditioning: - Ivan Pavlov – Russian physician/neurophysiologist - Interested in dogs’ digestive reflexes - He noticed that his dogs would salivate in anticipation of food - Realized that dogs learned to make connections about the stimulus that signals the food and the actual food Classical conditioning (aka Pavlovian conditioning) - A type of learned response - That occurs when a neutral object comes to elicit a reflexive response - When the neutral stimulus is associated with another stimulus that produces that reflex Part 1: - Put meat powder on tongue o Led to salivation (natural reflex) - Played a metronome (at the same time) o Did not lead to salivation (neutral stimulus) Part 2 (done over and over; conditioning trial) - Metronome sounded, a few seconds later, meat powder was put on tongue o This pairing led to salivation Part 3: - Metronome sounded but no meat powder presented (critical trial) o Led to salivation - Neutral stimulus – doesn’t automatically trigger reflexive response (Metronome) - Unconditioned stimulus (US/UCS) – elicits reflexive (unlearned/automatic) behavior (Meat Powder) - Unconditioned response (UR/UCR) – automatic response to UCS (drooling) - Conditioned stimulus (CS) – neutral stimulus that now triggers response (Metronome b/c dog drools in response) - Conditioned response (CR) – acquired, learned response to previously neutral conditioned stimulus (drooling to metronome) o Generally same behavioral events as UCR, but weaker than UCR - Acquisition – learning phase – gradually forms an associate between a conditioned and unconditioned stimulus - Critical element of acquisition is contiguity – stimuli occur together in time - Extinction - gradual reduction/elimination of CR after CS is presented repeatedly without UCS - Spontaneous recovery – sudden, weaker, reemergence of extinguished
More Less

Related notes for PSY100H1

Log In


Don't have an account?

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.