Ch. 7 notes

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University of Toronto Scarborough
Steve Joordens

- Stimuli(spaced out)..respond..x100..slow Ch. 7 Learning and Behaviour - Our behaviour is changeable in response to habituation. - Stimuli... no respond experience - but there are conditions - Stimuli stopped for period of time - Stimuli... no respond still Learning: an adaptive process in which experience changes the tendency to perform a Classical conditioning particular behaviour - Cannot be observed directly but inferred - learning about conditions that predict the occurrence of a significant event from changes in behaviour - much of our behaviour is acquired through - Not all changes in behaviour caused by clsscl cndtnng learning Ex. reaction to scary music in a horror movie - experience alters the structure and chemistry of the brain Pavlovs Serendipitous Discovery the response of the nervous system to Roentgen: Discovered X-rays subsequent events also alters British scientist: had made the same discovery Performance: the behavioural change (new - Assistant reported: photographic film behaviour) produced by internal change tended to get fogged next to the lab - Evidence that learning has take place uranium sample... - Evidence is imperfect because fatigue, and - Told assistant to move film motivation also affect behaviour Three kinds of learning: habituation, classical - Missed Noble peaceprize Ivan Pavlon (1904, Russian Physiologist) conditioning, and operant conditioning. Ambition: discover neural mechanisms controlling glandular secretions during Habituation digestion Orienting response: sound heard...become - Measured secretions during course of alert...turn head meal Habituation: simplest form of learning: - Sidetracked! serendipitous discovery.. learning not to respond to an unimportant even - Why did dog start salivating at the sight that occurs repeatedly of food? - Animal: with very primitive nervous systems - Suspected: salivation triggered by stimuli are capable of habituation (Snails) - Designed experiments... - Evolutionary perspective of habituation: saves - Inexperience dog harnessed... bell energy (not responding) ringed... food... Short term Habituation: temporary, simplest - After a while... the sound of the bell form, caused salivation - Stimuli(quick cycls)..respond..x100..rapid Classical Conditioning: processin which a habituation. response normally elicited by one stimulus (UCS) - Stimuli... no respond comes to be controlled by another stimulus (CS) - Stimuli stopped for period of time - Sequence and timing of events are - Stimuli... respond... x100... REhabituation important factors Long-term habituation: animals w more complex - UCS... UCR... CS... UCS.... UCR nrvous systms CS... CR...
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