FIGURE 2.

Social defeat stress and social interaction test. A, The mouse on the left is a C57BL/6J mouse, and the one on the right is a CD‐1 mouse. There is a transparent partition plate with a number of small holes between the two animals, through which they can visually and olfactorily recognize each other. B, Schematic diagram of the social interaction test. A mesh box with a diameter of 7 cm and a height of 10.6 cm in a box with a diameter of 45 cm and a height of 40 cm. The surrounding area of 13 × 23 cm is defined as an interaction zone. The box is empty in the first trial, and CD‐1 is in the second trial