In the experiment, the volunteers were asked to play computer "shooter" where you need to kill civilians and enemy soldiers. During the game, the scientists examined the brain using MRI, writes Science World Report.
During the shelling of civilians in volunteers active area of the lateral part of the orbitofrontal cortex, the structure responsible for making moral decisions. Killing enemy soldiers is not increased activity in this area.
Scientists have discovered one of the mechanisms of inhibition of the reaction when performing a single action under various pretexts. The killing of a citizen and the enemy is killing people, but in one case, there is conscience, and the other moral choice falls on the murder.
Perhaps murderers and criminals disruption of the orbitofrontal cortex occurs more often than usual. This will show future research.