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A conditioned reflex is learned through association, such as Pavlov's dogs salivating at the sound of a bell paired with food. In contrast, an unconditioned reflex is an innate, automatic response to a stimulus without prior learning, like blinking when something comes close to your eye.
Classical conditioning involves the pairing of a neutral stimulus with an unconditioned stimulus to create a conditioned response. The key elements include an unconditioned stimulus that naturally triggers a response, a neutral stimulus that initially does not elicit a response, and the pairing of the two stimuli to produce a conditioned response. Over time, the neutral stimulus alone can evoke the conditioned response.
A simple reflex is an automatic response to a stimulus that is innate and does not require learning. In contrast, a conditioned reflex is a learned response to a previously neutral stimulus that becomes associated with a specific outcome through repeated pairing.
Ivan Pavlov's hypothesis was that dogs develop a learned response (conditioned reflex) to a neutral stimulus, such as a bell, when it is repeatedly paired with an unconditioned stimulus, like food. This laid the foundation for his classical conditioning theory.
In Pavlov's experiment, the unconditioned stimulus (US) was the food that naturally triggers the dog's salivation reflex. This means that the food automatically causes the dog to salivate without any conditioning.
Ivan Pavlov provided evidence that reflexes can be learned through classical conditioning, a type of learning where a neutral stimulus comes to evoke a response after being paired with a stimulus that naturally evokes that response.