The Open Field Maze (OFM) was initially developed in 1934 as a test to measure emotionality in rodents. Developed by Calvin S. Hall, the open field test is an experimental test used to assay general locomotor activity levels, anxiety, and willingness to explore in animals (usually rodents) in scientific research. It has one of the most widely used measures of behavior in animal psychology. OFM consists of a wall-enclosed area that is of sufficient height to prevent the subject from escaping and is divided into 2 zones, inner zone that spans in center and outer zone that spans towards wall of the maze. Greater time spent in the outer zones of the maze is recorded as increased thigmotaxis and is indicative of amplified anxiety-related behavior.