Learning - 02. Pavlov

Post on 21-Jan-2018

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Transcript of Learning - 02. Pavlov

PAVLOV’S OBJECTIVESPAVLOV’S DISCOVERYPAVLOV’S CONCLUSION

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PAVLOV’S OBJECTIVESPAVLOV’S DISCOVERYPAVLOV’S CONCLUSION

Ivan Pavlov, a Russian researcher, was interested in the sources of salivation

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PAVLOV’S OBJECTIVESPAVLOV’S DISCOVERYPAVLOV’S CONCLUSION

He wanted to determine which foods and conditions promoted salivation in dogs

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PAVLOV’S OBJECTIVESPAVLOV’S DISCOVERYPAVLOV’S CONCLUSION

To examine this issue, he developed a means to measure salivation in dogs

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PAVLOV’S OBJECTIVESPAVLOV’S DISCOVERYPAVLOV’S CONCLUSION

In essence, the salivary gland, was connected to a clear tube that dripped into a beaker

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PAVLOV’S OBJECTIVESPAVLOV’S DISCOVERYPAVLOV’S CONCLUSION

Each food would evoke different levels of salivation

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PAVLOV’S OBJECTIVESPAVLOV’S DISCOVERYPAVLOV’S CONCLUSION

Each food would evoke different levels of salivation

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PAVLOV’S OBJECTIVESPAVLOV’S DISCOVERYPAVLOV’S CONCLUSION

But gradually he noticed something unusual

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PAVLOV’S OBJECTIVESPAVLOV’S DISCOVERYPAVLOV’S CONCLUSION

When he or his assistant entered the room, the dog would salivate

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PAVLOV’S OBJECTIVESPAVLOV’S DISCOVERYPAVLOV’S CONCLUSION

Dogs could not have evolved to recognize Russian scientists

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PAVLOV’S OBJECTIVESPAVLOV’S DISCOVERYPAVLOV’S CONCLUSION

He decided to study this anticipation

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PAVLOV’S OBJECTIVESPAVLOV’S DISCOVERYPAVLOV’S CONCLUSION

A metronome was activated before food was presented

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PAVLOV’S OBJECTIVESPAVLOV’S DISCOVERYPAVLOV’S CONCLUSION

Later, a metronome without food evoked salivation

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PAVLOV’S OBJECTIVESPAVLOV’S DISCOVERYPAVLOV’S CONCLUSION

If a signal tends to precede an event that provokes a reflex…

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PAVLOV’S OBJECTIVESPAVLOV’S DISCOVERYPAVLOV’S CONCLUSION

this signal alone will evoke the reflex…

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Classical conditioning extends reflexes to new situations

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