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Lecture 2

PSYCH 1F03 Lecture 2: Classical Conditioning - Module Notes
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Department
Psychology
Course Code
PSYCH 1F03
Professor
Joe Kim

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Classical Conditioning - Module Notes September 18, 2017 9:31 PM Module Notes - September 18, 2017 Classical Conditioning Pavlonian Condition - another word for this due to Ivan Pavlov - Discovered that dogs salivate before food even enters their mouth as if it was an early step in the process of digestion was triggered even before the food stimulus arrived. - He got a dog used to feeding after the sound of a metronome. Before, the sound of this had no effect on the dog. But after the dog got used to feeding after the sound, it began to salivate every time it heard this sound because the idea of food would come to mind and this was what the brain got used too. - Pavlov was technically studying a contingent relationship: the presentation of one stimulus reliably leads to the presentation of another. Ex; you see a flash of lightning before the crash of thunder. - When an organism learns the association between a signal and an event, we say that a contingent relationship has formed between the two stimuli - When a contingent relationship is learned, an organism can respond to the signal before the event even occurs. This is often prepatory in nature and can promote survival. Ex; it makes sense to salivate in anticipation of arriving food because it can make digestion more efficient. - Ex; eating a strawberry can cause an allergic reaction so the brain knowing this will cause you to avoid an allergic reaction - Imagine placing a a slice of lemon in your mouth. Immediately, your mouth puckers and begins to salivate. - This can serve two purposes; to neutralize the citric acid from the lemon and prepare the body for digestion. The idea of it causes your mouth to water due to previous experiences. Unconditional Response (UR): - The physiological response that occurs after the unconditioned stimulus - Occurs naturally, prior to any learning - Programed reflex - Ex; the salivation of a lemon Conditional Stimulus (CS):Classical Conditioning - Module Notes September 18, 2017 9:31 PM Module Notes - September 18, 2017 Classical Conditioning Pavlonian Condition - another word for this due to Ivan Pavlov - Discovered that dogs salivate before food even enters their mouth as if it was an early step in the process of digestion was triggered even before the food stimulus arrived. - He got a dog used to feeding after the sound of a metronome. Before, the sound of this had no effect on the dog. But after the dog got used to feeding after the sound, it began to salivate every time it heard this sound because the idea of food would come to mind and this was what the brain got used too. - Pavlov was technically studying a contingent relationship: the presentation of one stimulus reliably leads to the presentation of another. Ex; you see a flash of lightning before the crash of thunder. - When an organism learns the association between a signal and an event, we say that a contingent r
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