unconditioned reflex

physiology

Also known as: UR, unconditional response, unconditioned response

Learn about this topic in these articles:

In conditioning
…its mouth is called the unconditioned response (UR) to food, which is the unconditioned stimulus (US).
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In animal learning: Classical and instrumental conditioning
…salivation, which is termed an unconditional response. The ticking of the metronome is a conditional stimulus, because its ability to elicit salivation (now a conditional response when it occurs in reaction to the conditional stimulus alone) is conditional on a particular set of experiences. The elicitation of the conditional response…
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In reflex
Many automatic, unconditioned reflexes can thus be modified by or adapted to new stimuli, making possible the conditioning of reflex responses. The experiments of the Russian physiologist Ivan Petrovich Pavlov, for example, showed that if an animal salivates at the sight of food while another stimulus, such…
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