PSC 1 Lecture Notes - Lecture 7: Jean Simmons, Informed Consent, Little Albert Experiment
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Lecture 7: Learning
Learning
• Learning: lasting change in behaviour because of experience. (behaviourist explanation)
o Behaviour requires memory, but behaviourists not interested.
Classical conditioning
• Animals learn to respond to arbitrary stimuli
• Because of pairing
o Adding old stimulus that animal responds to with a new one.
• Ivan Pavlov, founder of behaviourism
• Pavlov and his dog
• Tuning fork becomes the condition stimulus which produces a conditioned response.
• Unconditioned stimulus (UCS) - fixed. "reflex" like food and water
• Conditioned stimulus (CS)- anything
• CC Works the same for all animals including humans.
• Conditioned stimulus- tuning fork (after training), conditioned response - salivating.
• "Amplitude" = Strength
• Latency- how long we have to wait for the response
▪ Shorter latency indicates better training
• Degree- how robustly the animal responds, how much behaviour do we get?
▪ A lot of saliva production would indicate higher degree.
• Probability- training with bell and food, after training animal only responds 10
times.
▪ Higher the probability better the training.
o more learning --> increased amplitude
• Extinction: behaviour goes away.
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