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The open field is an arena with walls to prevent escape. Commonly, the field is marked with a grid and square crossings. The center of the field is marked with a different color to differentiate from the other squares. In the modern open field apparatus, infrared beams or video cameras with associated software can be used to automate the ...
The test rather reflects the anxiolytic effects of antidepressants and the response is seen only after chronic treatment with antidepressants. Elevated plus maze. Open field: [38] Rodents tend to avoid brightly illuminated areas, and this avoidance is interpreted as a symptom of anxiety. Open field is a bright enclosure and during the test ...
The LDB apparatus has two compartments. The light compartment is 2/3 of the box and is brightly lit and open. The dark compartment is 1/3 of the total box and is covered and dark. A door of 7 cm connects the two compartments. [2] Rodents prefer darker areas over lighter areas.
The test was first developed by Dr. Carol Barnes in 1979. [1] The test subjects are usually rodents such as mice or lab rats , which either serve as a control or may have some genetic variable or deficiency present in them which will cause them to react to the maze differently.
The test uses an elevated, plus-shaped (+) apparatus with two open and two enclosed arms. The behavioral model is based on the general aversion of rodents to open spaces. This aversion leads to thigmotaxis : a preference for remaining in enclosed spaces or close to the edges of a bounded space.
The tail suspension test (TST) is an experimental method used in scientific research to measure stress in rodents. It is based on the observation that if a mouse is subjected to short term inescapable stress then the mouse will become immobile .