Lecture 6 notes - Learning

Lecture 6 notes - Learning - Module 21 Classical...

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Module 21 – Classical Conditioning Pavlov and Watson’s approach to psychology as a science of studying observable behaviours, Behaviourism, ignoring feelings and inner thoughts. However, experiences and introspection do play a role – ie. Drinking -> sickness but people still drink. According to classical condition drinking should be avoid to avoid sickness. Examples of Classical conditioning US = unconditioned stimulus UR = unconditioned response CS = conditioned stimulus CR = conditioned response Aroma of cake baking sets your mouth watering. What is the US, CS, CR? US = Cake + Taste CS = Aroma CR = secretion of saliva A tone is made just before delivering an air puff to your eyes. US, UR, CS, CR? US = puff of air UR = blinking S = tone CR = blinking Five major conditioning process- acquisition, extinction, spontaneous recovery, generalization and discrimination. Generalization : The tendency to respond to stimuli similar to CS. Pavlov and students noticed dogs responded to tones that sounded like the CS. E.g. Children like fudge, but when fudge is in a shape that resembles feces child is disgusted. Discrimination: the learned ability to distinguish between a conditioned stimulus and stimuli that do not signal an unconditioned stimulus. Pavlov’s dogs also learned to respond to the sounds of particular tones and not to other tones. Module 22 – Operant Conditioning Difference between Operant Conditioning and Classical conditioning CC: forms association between stimuli (a CS and US signal). It involves respondent behaviour –behaviour that occurs as an automatic response to some stimulus. OC: involves operant behaviour – the behaviour operates on the environment to produce rewarding or punishing stimuli. Classify the type of learning by: 1) Is the organism learning association between events that it doesn’t control? (CC) 2) Or is it learning association between its behaviour and resulting event? (OC) Classical Conditioning Operant Conditioning Basic Ideas Learns association b/w events it doesn’t control Organism leans association b/w its behaviour and resulting event Acquisition When US ->CR The strengthening of a reinforced response Extinction Diminishing of a CR when US doesn’t follow CS elimination of a response that is no longer of reinforced Spontaneous recovery Reappearance of CR Reappearance of an extinguished response Generalization Tendency for stimuli similar to CS to elicit similar response Organism’s response to stimuli that signals a behaviour will be reinforced
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This note was uploaded on 04/14/2009 for the course PSYCHOLOGY PSYCH 101 taught by Professor R.ennis during the Spring '09 term at Waterloo.

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Lecture 6 notes - Learning - Module 21 Classical...

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