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Перевод: stimulus
[существительное] стимул ; побудительная причина; побудитель ; возбуждающий фактор; раздражитель ; влияние [существительное]
Тезаурус:
- And the Kremer result does not require us to accept that a pre-exposed stimulus inhibits a CR in the way that a CS- does.
- It would seem therefore that the contingent or empirical links uncovered by experimental science between the nature of the stimulus and the intensity and distribution of neural activity on the one hand and between the properties of the stimulus and those of the evoked sensation on the other are not based on discoveries that go beyond, or arise outside of, ordinary experience.
- Each cell had its own stimulus requirements and when it became active this said something about the nature of the event or object in its own part of the visual field.
- We have already acknowledged that latent inhibition can be expected only when the CS is identified as being the same as the pre-exposed stimulus.
- In other words, when it comes to an attempt to understand how someone is likely to respond to a stimulus, a description of the stimulus in terms of its simple physical dimensions is not going to be of any value.
- According to this interpretation, the associability of each stimulus element might be expected to decline as it becomes associated with others, just as a CS as a whole is thought to lose associability as it becomes linked with a US.
- (I am leaving aside phenomena such as accommodation, whereby a constant stimulus when sustained may activate the nervous system progressively less intensively, with a corresponding reduction in the perceived intensity of the stimulus.
- The first fifty or so milliseconds of these waves are the most consistent for any particular stimulus and it is thought that they are almost entirely generated by the incoming stimulus, irrespective of any mental activity on the part of the subject.
- If this were so, the strengthening of the various associations generated by the inhibitory conditioning procedure would proceed only slowly for a pre-exposed stimulus and this effect could well outweigh any advantage that the existence of a stimulus-no event association might bestow.
- What is more, the experimental results that have been taken to demonstrate that retrieval plays a part in latent inhibition cannot demonstrate this failure to be the sole source of the effect - these experiments show that a CS-US association is indeed formed after latent inhibition training and can be revealed if the conditions of testing are appropriate; they do not show convincingly that the association is just as strong as that formed in subjects given no pre-exposure to the target stimulus.
- The idea is that if some action, X, is followed by a stimulus, for example food, which is "reinforcing", then the animal is more likely to do X in the future.
- The repeated confirmation of the correlation between the physical characteristics of the stimulus and the characteristics of the neural activity it triggers, and between the characteristics of the stimulus and that of the subjective sensation, has encouraged the belief that our sensations are in some sense to be understood in terms of a set of stimulation levels (spiking frequencies) in the appropriate sensory pathways.
- Thus, the extent of habituation increases with the number of exposures to the stimulus and so does the magnitude of latent inhibition (e.g. Lubow 1965; Lubow, Markman, and Allen 1968; Lantz 1973).
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