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stimulus
(redirected from conditioned stimulus)

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stimulus

Change in the environment of an organism that the organism can detect and respond to. These changes may be noise, light, heat, or pressure. The changes are detected by specialized cells called receptors. The skin contains many receptors for heat, touch, pressure, and pain. Sometimes the receptors are found in an organ which is so specialized for this purpose it is called a sense organ - for example the eye. See sensitivity.



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? Mentioned in ? References in periodicals archive
 
For each trial, a 5-sec conditioned stimulus (CS), consisting of a buzzer and light, was followed by a 5-sec unconditioned stimulus (UCS), which included a scrambled shock of 0.
Behavioral alterations in response to fear-provoking stimuli and ... by Yoshikawa, Yasuhiro / Environmental Health Perspectives
The capsule they receive is pharmacologically inert, but hardly inert with respect to its symbolic value and its power as a conditioned stimulus.
Placebos for depression attract scrutiny by Bower, B. / Science News
The EBC procedure involves pairing a conditioned stimulus (CS; typically a pure tone) and an unconditioned stimulus (US; typically a brief air puff to the eyelid area).
Comparable measures of cognitive function in human infants and ... by McMaster, Suzanne B. / Environmental Health Perspectives
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