I infer by the modality of the study, the controversy is because the parameters are not careful and all the results can not be generalized. With a functional magnetic resonance it can be determined that the areas have injured patients with suicidal tendencies, that like the other words that have to do with the action, that areas of the limbic system are activated because they have to do with emotion, between those the brain tonsil, it seems to me that a series of tests is still needed for the determining sea, although it is interesting