Would you sacrifice one person to save the lives of many? Your answer to this moral dilemma may reveal how popular you are

It is almost an impossible choice - deciding whether to sacrifice the life of one innocent person to save the lives of five others. But scientists have discovered that the choice you make in this scenario could have a drastic impact on how trustworthy people think you are. The findings may help to explain why humans are often drawn to moral choices that do not benefit the greater good, such as refusing to make such sacrifices. Psychologists have explored why humans seen to be drawn to making'illogical' moral choices, like sacrificing the lives of many to save the life of one person, depicted in Saving Private Ryan (pictured). It suggests there may be certain rules about morality hardwired into human nature due to our evolution as a social species. Jim Everett, a psychologist at the University of Oxford who led the work, said such rule-based decisions - known as deontological morality which focuses on ideas of right and wrong – may have served to increase group cohesion in the past by helping people trust each other.