unconditioned stimulus

collocation in English

meaningsofstimulus

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stimulus
noun[C]
uk
/ˈstɪm.jə.ləs/us
/ˈstɪm.jə.ləs/
something that causes growth ...
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(Definition ofstimulusfrom theCambridge English Dictionary© Cambridge University Press)

Examplesofunconditioned stimulus

These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.
It implies that there is anunconditionedstimulusthat activates major components of the behavior of interest.
From theCambridge English Corpus
By being able to anticipate anunconditionedstimulus, the animal is better able to respond to it in a highly beneficial fashion.
From theCambridge English Corpus
In studies of the conditioning of agonistic behavior, theunconditionedstimulushas been an encounter with an intruding male.
From theCambridge English Corpus
Past experience is more applicable to animal studies because of its role in determining a subject's response to anunconditionedstimulus.
From theCambridge English Corpus
Therefore, contagious distress from offspring to parent can act as anunconditionedstimulus, motivating the parent to act before a stressful display erupts.
From theCambridge English Corpus
The conditioned and unconditioned response output of one system functions as the conditioned andunconditionedstimulusinput of another system consisting of a mirror set of components.
From theCambridge English Corpus
If the opportunity for social contact and play can serve as a reinforcer, then the social play partner, for our purposes, can be considered anunconditionedstimulus.
From theCambridge English Corpus
In the study with the blue gourami, for example, the conditioned stimulus was the presentation of a red light, and theunconditionedstimuluswas visual access to a female.
From theCambridge English Corpus
Alternatively, when theunconditionedstimulusis aversive, rodents will be more likely to escape and avoid the compartment that contains cues associated with it.
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The conditioned stimulus is presented with theunconditionedstimulus.
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Later the rats would be exposed to radiation or drugs (theunconditionedstimulus), which would make the rats sick.
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The environment will come to elicit approach or avoidance-withdrawal depending on the nature of theunconditionedstimulus.
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This compartment will become associated with the motivational effects of theunconditionedstimulus.
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In classical conditioning, when used together with anunconditionedstimulus, the neutral stimulus becomes a conditioned stimulus.
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An example is stated to be having a piece of chocolate in our mouth (unconditionedstimulus) and have a later response of salivation (unconditioned response).
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In addition, lab experiments generally require very brief (less than a second) intervals between a neutral stimulus and anunconditionedstimulus.
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Recovery takes place even though there has not been any additional associations between the conditioned stimulus and theunconditionedstimulus.
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Following conditioning, the response occurs both to theunconditionedstimulusand to the other, unrelated stimulus (now referred to as the conditioned stimulus).
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The other is by giving them a small dose of theunconditionedstimulus.
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The initially neutral environmental cues become associated with the motivational properties of theunconditionedstimulusleading to either approach or avoidance of the environment.
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These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.
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