Open Field Test (OFT)
The open field test was developed by Calvin S. Hall, and this is an experimental test that is used to explore the anxiety and willingness of animals in scientific research. For example, some researchers use the open field test to assess the memory of animals in recognizing certain objects and stimuli. Researchers have uncovered that lower levels of anxiety in animals lead to more exploratory behavior. On the other hand, an increased level of anxiety will lead to reduced locomotion, meaning that animals prefer to stay within the closed walls of the field itself. Researchers who conduct this type of test measure a wide variety of parameters including rearing, stretch attend postures, defecation, and urination.