choice chamber

choice chamber

a piece of apparatus used in experiments in animal behaviour in which it is possible for an organism to choose between, say, damp or dry, hot or cold conditions.
References in periodicals archive ?
These animals were tested in a choice chamber (see Fig.
In the present work, the header tank, stimulus tanks, and choice chamber itself were all made from clear acrylic plastic.
The choice chamber was positioned on a wet bench close to the sea urchin holding tank, so quick transfers of experimental animals were possible.
This delivery rate of stimuli helped ensure that the stimulus had equally permeated all parts of the appropriate half of the choice chamber and that the test animals were exposed to as constant a stimulus as possible.
No response: part of the animal remained on the drainage base plate or the animal moved to the sides of the choice chamber such that at least part of its body was in line with the base plate.
After each experiment the choice chamber was thoroughly rinsed and cleaned of all animal debris.
That the two sides of the choice chamber gave similar flow rates and volumes so that the test animals did not favor one side over the other.
Overall, about 75% of the test animals responded to stimuli in the choice chamber within 5 min of the start of each experiment, and 80% had traversed the full length of one arm of the chamber within 30 min.
3a--c), starfish and urchins tested when no stimulus was introduced to the apparatus failed to display a significant preference for one side or the other of the choice chamber (P > 0.
Using a choice chamber similar to the one in the present study, Mann et at.
The use of the dye tests to obtain the correct balance of water flow through the choice chamber allowed us to determine a 10-mm regime of stimulus application that subjected the test animals to the most precise stimulus conditions we could obtain.
The Anyphaenidae was the only spider family that significantly settled in the tubes that interconnected the choice chambers to one another as opposed to actually settling in the foliage or nests of A.