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conditioned response |
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response /re·sponse/ (re-spons´) any action or change of condition evoked by a stimulus.respon´sive acute phase response a group of physiological processes occurring soon after the onset of infection, trauma, inflammatory processes, and some malignant conditions; it includes increase in acute phase proteins in serum, fever, increased vascular permeability, and metabolic and pathologic changes. anamnestic response secondary immune r. autoimmune response the immune response against an autoantigen. conditioned response a response evoked by a conditioned stimulus; a response to a stimulus that was incapable of evoking it before conditioning. galvanic skin response the alteration in the electrical resistance of the skin associated with sympathetic nerve discharge. immune response any response of the immune system to an antigenic stimulus, including antibody production, cell-mediated immunity, and immunological tolerance. primary immune response the immune response occurring on the first exposure to an antigen, with specific antibodies appearing in the blood after a multiple day latent period. relaxation response a group of physiologic changes that cause decreased activity of the sympathetic nervous system and consequent relaxation after stimulation of certain regions of the hypothalamus. They may be self-induced through techniques such as meditation and biofeedback. secondary immune response the immune response occurring on second and subsequent exposures to an antigen, with a stronger response to a lesser amount of antigen, and a shorter lag time compared to the primary immune response. triple response (of Lewis) a triphasic skin reaction to being stroked with a blunt instrument: first a red line develops at the site due to histamine release, then a flare develops around the red line, and lastly a wheal is formed as a result of local edema. unconditioned response an unlearned response, i.e., one that occurs naturally to an unconditioned stimulus.
conditioned response, an automatic reaction learned through training to a stimulus that does not normally elicit such response. Such responses can be physical or psychologic and are produced by repeated association of some physiologic function or behavioral pattern with an unrelated stimulus or event. In Pavlov's classic experiments, dogs learned to associate the sound of a ringing bell with feeding time so that they salivated at the sound of the bell, regardless of whether or not food was given to them. Also called acquired reflex, behavior reflex, conditioned reflex, trained reflex. Compare unconditioned response. See also classical conditioning, operant conditioning. conditioned educated by a conditioning process. See conditioning. conditioned reinforcer the pairing of a neutral stimulus with a primary, or natural, reinforcer. conditioned response a response that does not occur naturally in the animal but that may be developed by regular association of some physiological function with an unrelated outside event, such as ringing of a bell or flashing of a light. Soon the physiological function starts whenever the outside event occurs. Called also conditioned reflex. See also conditioning. response any action or change of condition evoked by a stimulus. autoimmune response the immune response in which antibodies or immune lymphoid cells are produced against the body's own tissues. conditioned response see also conditioned response, conditioning. dazzle response shining a bright light in the eye causes a blink. Called also dazzle reflex. galvanic skin response the alteration in the electrical resistance of the skin associated with sympathetic nerve discharge. immune response specifically altered reactivity of the animal body after exposure to antigen, manifested as antibody-production, cell-mediated immunity, development of hypersensitivity, or as immunological tolerance. Called also immune reaction. See also immune response. maze response a test of vision for animals. placing response see placing reflex. response rate in surveys, the number of completed survey instruments (questionnaires, interview records) divided by the total number of persons approached. response trial a field trial conducted to test a hypothesis, often about the cause of a disease but can encompass therapeutics or control of a disease. The hypothesis is tested by observing the response to an alteration in the system, e.g. in feeding or in management. triple response (of Lewis) a physiological reaction of the skin to stroking with a blunt instrument: first a red line develops at the site of stroking, owing to the release of histamine or a histamine-like substance, then a flare develops around the red line, and lastly a wheal is formed as a result of local edema. unconditioned response an unlearned response, i.e. one that occurs naturally. See also conditioning. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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conditional probability conditionally essential nutrients conditioned conditioned avoidance response conditioned escape response conditioned orientation response conditioned reflex conditioned reflexes conditioned response conditioned stimulus conditioner conditioning conditions of employment condom condom catheter |
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