Remembering some people's faces/voices better than others

[animus]

For example, since meeting this person, I have not been able to picture her in my mind nor recall her voice well at all. In fact, I always picture her as another woman I know for some reason. (How unintentionally rude!) She [the woman I can never recall] is probably the most important person to me, and I have seen her almost every day for almost a year. Stranger yet, is that when I dream about her, I can reconstruct her presence just fine. She looks and sounds just as she is in real life.

Does anyone know why the brain (well, maybe not everyone's?) does this?

[david23]

This probably fits more with behavioral science than neurology

[animus]

Hm.. that's true. Are you suggesting I change the category? I don't think there are any for neither behavioral science nor neurology.

Thanks, though.