Jon Freeman in “Unfinished Business”

Morgan Freeman:  Why would we make life-and-death decisions based on stereotypes we don't even believe?  I always thought we could overcome these bigoted ideas, but one neuroscientist says it's not that simple; racist stereotypes hijack our subconscious minds.Neuroscientist Jon Freeman believes we all carry around stereotypes in our subconscious.  …  These prejudiced thoughts are quickly snuffed out by the conscious mind, but that doesn't mean that they're harmless.

  Those stereotypes can actually wind up impacting behaviour.  So, for example, if individuals unconsciously see African-American faces as being slightly more angry than they are, that's probably going to impact how much they approach or avoid that individual at a spontaneous level.