Similarly, I think Coltheart's criticism described here was flawed because it made the prior too specific. How often do you see a person at a distance or facing away and you "recognize" them as a loved one, but then the person comes closer or turns around and you realize you were wrong? It's not often, but it happens enough that we all know that feeling of sudden non-recognition. I often see it in children who come up to me expecting to find their father. The likelihood ratio of priors doesn't have to be for "my wife" versus "an imposter", but could be for "my wife" versus "not my wife". If that is the case, then the brain-damaged person uses the imposter theory to explain the general "not my wife" endogenous evidence.