From New Scientist WHY do we sometimes wrestle with moral dilemmas? A twist on a classic psychology experiment suggests that our minds have two parallel moral systems, and they don't always agree. In the trolley experiment, participants are told that a runaway tram trolley could kill five people...

By Tiffanny O'Callaghan, in The New Scientist Disgust can be a bewildering emotion. In her new book, That's Disgusting, research psychologist Rachel Herz points out that our tendency to react by pulling away is based on a combination of self-preservation and learned behaviour. When we are grossed...

The Vexing Mental Tug-of-War Called Morality By Kristin Ohlson, Discover magazine Would you kill a crying baby to save yourself and others from hostile soldiers outside? Neuroscience offers new ways to approach such moral questions, allowing logic to triumph over deep-rooted instinct. You arrive at the...