The trolley problem

 There is a runaway trolley speeding towards four men working on the tracks. People are given a choice to pull a lever, which would change the course of the trolley to different tracks with only one man working on it. Somebody will die. In this choice people choose to pull the lever which results in one man dying, but saving four lives. In a similar scenario the runaway trolley is speeding towards four men working on the tracks. People are told that they are on the bridge and there is a big fat man there with them. They are given a choice to either let the four men die or push the big fat man off the bridge, resulting in his death, but saving four lives. It this case, people would let the four men die, rather than pushing another to his death. These two problems are so similar, yet people choose different options. It seems that people do not concentrate only on the outcome of the problem. Different areas of the brain are activated during making these choices and this of course provides  different outcomes.