 Zeno Franco and Philip Zimbardo point out differences between heroism and altruism, and they offer evidence that observer perceptions of unjustified risk play a role above and beyond risk type in determining the ascription of heroic status.Psychologists have also identified the traits of heroes.Elaine Kinsella and her colleagues have identified 12 central traits of heroism, which consist of brave, moral integrity, conviction, courageous, self-sacrifice, protecting, honest, selfless, determined, saves others, inspiring, and helpful.