I have relatively mild prosopagnosia; I can recognize people I know well. My understanding is that the brain's object recognition system takes over from the fac

I have relatively mild prosopagnosia; I can recognize people I know well. My understanding is that the brain's object recognition system takes over from the facial recognition system. It's less efficient but it works well enough. Anyone I know well enough to recognize from the back (by gait, voice, height, hair color, etc.) I can also recognize from the front by looking at their face. It's hardest when I'm first meeting a lot of new people, like at a new job. Other people, with more severe prosopagnosia, can't even recognize their own family members' faces. They rely on gait and voice and other cues. It's really hard on them when, say, their spouse decides to get their hair dyed blue.