Significados de internal voices en inglés

Maybe one of her internal voices was that of her own mother....

A lot depends on how they speak: their conversations with other characters as well as their internal voices.

But it was on this spot that the internal voices of Raquella's female ancestry had first spoken to her.

But can any person survive the constant pressure of so many internal voices whose goals are entirely different from those of the living?

How can you share your distress with someone else if you can't distinguish between internal voices in your head from those around you?