BIOL 1F25 Lecture Notes - Lecture 26: Lymnaea, Pneumostome, Operant Conditioning Chamber
2 Apr 2017
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Requires person to perform a behaviour: vertebrates. Skinner box consists of a lever that animal can press. The skinner box is considered the operant chamber" of this experiment. If there is a consequence when the animal presses the lever, they learn overtime that when they press the lever, they receive the reward. Animal will press the lever more often to obtain the award, and less often to avoid the punishment. Homeostatic response in this experiment, that is aerial respiration. Because they live in stagnant environments, oxygen is not always. Lymnaea stagnalis are found in stagnant ponds abundant in the water. They can therefore breath in two ways; they breath primarily through their skin, but when water is deficient in oxygen, they breath (air) above the surface of the water, through pneumostomes (their lungs) Lymnaea stagnalis can survive 12-24 hours without oxygen. Punishing stimulus poke on pneumostome when animal tries to open it. Cells underlying behaviour have been individually identified.
