Study of not only humans but animals as well. The mind is not directly observable therefore they are not available to experimental study, but we can study the visible indicators of mind or mental activity. These are a human and animal behavior. psychology and the study of animals: Study animal behavior to further understanding of human behavior. (comparative psychology; when they compare human behavior to animals behavior) One of the most popular areas of animal research is psycho surgery, where psychologists do surgery on animals to relate the brain to the animals actions. Lobotomy: connections are severed between various parts of the brain. Most usually between the frontal lobes (thinking area) and the thalamus (pg. This would be beneficial for people who are depressed. Too little research was done on the animals therefore many side effects emerged from the lobotomy procedure.