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Related to conditioned stimulus: unconditioned stimulus, stimulus generalization, classical conditioning, conditioned response, operant conditioning
any agent, act, or influence that produces functional or trophic reaction in a receptor or an irritable tissue.
conditioned stimulus a stimulus that acquires the ability to evoke a given response by repeatedly being linked with another stimulus that naturally evokes that response; see also conditioning.
depolarizing stimulus a stimulus that lowers the resting potential, making the inside of a fiber less negative. In cardiac fibers this means bringing the resting potential from −90 mV to −70 mV.
discriminative stimulus a stimulus associated with reinforcement, which exerts control over a given type of behavior; the subject must discriminate between closely related stimuli and respond positively only with this particular stimulus.
eliciting stimulus any stimulus, conditioned or unconditioned, that elicits a response.
threshold stimulus a stimulus that is just strong enough to elicit a response.
unconditioned stimulus any stimulus that naturally evokes a specific response; see also conditioning.
1. a stimulus applied to one of the sense organs (for example, receptors of vision, hearing, touch) that are an essential and integral part of the neural mechanism underlying a conditioned reflex;
2. a neutral stimulus, when paired with the unconditioned stimulus in simultaneous presentation to an organism, capable of eliciting a given response.
A previously neutral stimulus that, after repeated association with an unconditioned stimulus, elicits the response effected by the unconditioned stimulus itself.
con·di·tioned stim·u·lus(kŏn-dish'ŭnd stim'yū-lŭs)
1. A stimulus applied to one of the sense organs that are an essential and integral part of the neural mechanism underlying a conditioned reflex.
2. A neutral stimulus, when paired with the unconditioned stimulus in simultaneous presentation to an organism, capable of eliciting a given response.
3. To improve one's physical state by exercise.