blocking effect


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blocking effect

In classic conditioning, the failure of a new stimulus to become a conditioned stimulus, if accompanied by an already effective conditioned stimulus during the conditioning phase.
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References in periodicals archive ?
Tamsulosin has a weak D2-dopamine receptor blocking effect besides alpha-1-receptor blocking effect (5), and elevates blood prolactin level significantly in rats and mice.
One resident said occupants would be able to look directly into his house and there was a significant "sun blocking effect", especially in the winter months.
He stressed that the newer biologics represented an advance over older agents in that they were more effective with a more specific blocking effect and were well tolerated.
The third one is debated, but it is thought that flecainide also has a direct blocking effect on RYR2.
This action might, at least partially, be due to the neuromuscular transmission blocking effect of topiramate.
Ticagrelor inhibits cellular uptake of adenosine and thus increases its plasma concentration which can cause AV blocking effect. It is also thought to affect the cardiac automaticity and conduction [6, 7].
The blocking effect occurs when pairings of a stimulus and an outcome prevent subsequent conditioning of a second stimulus, which is presented simultaneously with the first, and followed by the same outcome (A+, AX+).
Considering the mechanism of action of the vasorelaxant effect, the fact that in isolated preparations a complete relaxation was observed under the influence of NA but no relaxation in [K.sup.+]-induced contractions argues against a blocking effect of the extract on voltage-dependent L-type [Ca.sup.2+] channels.
The change in structure can also be linked to a robust blocking effect of the cationic surfactant of solanum tuberosum juice and Al dispatched oxide films which might influence nuclei replenishment and impact smaller grain size.
Vari-Stem Plugs work by creating a blocking effect within the drill hole by wedging the stemming material between the drill hole wall and plug.