The doctors who perform today's delicate cardiac, ear, eye, pulmonary and brain surgeries, as well as doctors in training, must develop the necessary skills before patients' lives are entrusted to their care. Neither computer models, cell cultures, nor artificial substances can simulate flesh, muscle, blood, and organs like the ones in live animals...
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Living systems are complex. The nervous system, blood and brain chemistry, and gland secretions are all interrelated. It is impossible to explore, explain or predict the course of many diseases or the effects of many treatments without observing and testing the entire living system. Cell and tissue cultures, often suggested as "alternatives" to using animals, have been used in medical research for many years...
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Classical vs. Operant Conditioning If reinforcement is withheld, extinction will occur in operant conditioning. Another factor that is involved in conditioning is spontaneous recovery. That is the reappearance of an extinguished response after the passage of time, without further training...	3 / 609
Ivan Pavlov and Classical Conditioning The dog salivating to the bell is known as the "conditioned" response, because it had to be learned through conditioning (SBB). The same goes for the cause, the "stimulus"...	3 / 661
Pavlov'S Dogs The theory of classical conditioning is universally accepted and has remained unchanged since its conception through Pavlov’s work. Other psychologists have worked with Pavlov’s conditioning...	2 / 388
Classical Conditioning All of these things symbolize stopping. Yes, when you turn sixteen and you get your license you are told that red means stop, but by this point in your life, this is common knowledge...	2 / 469