PSYCO104 Lecture Notes - Lecture 17: Eric Kandel, Aplysia, Startle Response
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Learning is defined as a change in an organism"s behaviors or thoughts as a result of experience. Behaviour-event learning (instrumental or operant conditioning) (1) habituation & sensitization. Habituation is the process by which we respond less strongly over time to repeated stimuli. Biological mechanism of habituation discovered by eric kandel in the sea slug, aplysia. Stops retracting its gill if it"s pricked repeatedly. Repeated exposure to some stimuli can cause sensitization. Decrease in response intensity with repeated stimulus presentations. When stimuli are presented close together over time. Increase in vigor of behavior that can result from repeated presentation of a stimulus, or by arousal from extraneous stimuli. British associationists believed that we acquire almost all of our knowledge via conditioning forming associations between stimuli. Associationists believed that simply associations provide the mental building blocks for all of our more complex tasks.
