The test measures how long mice stay put after they are placed in a chamber where they previously received small electric shocks. (sciencemag.org)
This treatment involves attaching electrodes to certain parts of the brain that are connected by a wire under the skin to a box that produces small electric shocks and specified intervals. (essaythinker.com)
Then, the team asked the participants to rate the amount of pain they felt from small electric shocks and gauge the pain they thought someone in an adjacent room felt from the same type of shocks. (sciencemag.org)