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Chapter Six Learning.

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Presentation on theme: "Chapter Six Learning."— Presentation transcript:

1 Chapter Six Learning

2 FYI Plato and Aristotle
Believed learning takes place when you associate a new object with existing knowledge of related objects or concepts

3 Classical Conditioning
The concept of association Music  Feelings Stimulus / Response Song – Stimulus Feelings – Response

4 Classical Conditioning
Conditioning – a learned response A pairing of different stimuli Smell, appearance of food Classical Conditioning – when one stimulus, calls forth the response usually called for by a different stimulus The thought of food Mouth watering The actual food

5 Canalization Conditioned to prefer certain things Eating of insects
Difference in culture Eating of insects

6 You ring my bell / ring my bell
Hints that told the dogs food was coming Assistants, banging of trays, can opener, etc. Decided he would train dogs to respond to a stimulus Bell > Meat Powder

7 US / UR / CR / CS US – causes a response that is automatic
UR – is that response Salivation in response to meat powder CS (Bell) – learned, food was provided after bell CR – Salivation into response of bell (learned, to something that was neutral (bell))

8 Adapting to Envrionment
Happens in homes and in nature all the time Taste aversion – Have a bad experience, our bodies will want to stay away from it Role of time – Garcia Effect Extinction – Taking the powder away after the bell eventually led to the dogs not reacting to the bell

9 Spontaneous Recovery Revival of a response
After a rest period of no bell, the reaction came back after a bell ring, but not as severe Songs and too much play Rides, too often, no more adrenaline

10 Generalization / Discrimination
Respond the same way to some stimuli even if they are not identical Ice Cream Discrimination – responding differently to stimuli that are dissimilar Both of these help living things adapt to environments Discrimination and roller coasters Generalization and roller coasters

11 Applications of Classical Conditioning
Flooding – being exposed to a stimulus until fear responses are extinguished Unpleasant but effective Systematic Desensitization – taught relaxation techniques Far more pleasant, takes longer to work

12 Counterconditioning Pleasant stimulus paired repeatedly with a fearful one Bell and Pad Method – US – bell UR – waking up CS – bladder tension CR – waking up to bladder tension

13 Section 2 Operant Conditioning
Learning from the consequences of your actions Animals and humans Learn to engage in behavior that brings desirable consequences Operant conditioning offers reactions to voluntary actions

14 B.F. Skinner B.F. Skinner’s secret weapon
Peck at targets on a screen for food pellets Peck at targets while on the missile to adjust flight paths

15 Operant An organism learns to do something because of its effects
Reward of food for pecking at targets

16 Reinforcement “Skinner box”
Rat in a box with a food lever Pressing the lever produced food, reinforcing the action The first response could be by chance or by physical guidance Teaching a dog to sit or roll over, then reinforced with a treat

17 Humans and Reinforcement
Usually, knowledge of success is all the reinforcement a person needs Money or candy works too

18


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