So like, would they take an x-Ray and say, "yup there's an injury to your hypothalamus, you're suffering memory loss", or would they just say "how far back can you remember? A day? Ok, yup you've got memory loss"
Lol ok stupid examples I know haha, but I guess what i'm trying to figure out is, will memory loss always show up on an x-ray, or is it only discoverable based on questioning the patient?