Lesson 2 in CBT 101 lol.
Core beliefs, who knows what they really are? Notice I didn't say negative core beliefs. Core beliefs can be negative or positive but if they have possibilities they are core thoughts. Core thoughts are things you think are possible but you are not positive about yet you use them anyway because you have no answer. They come from semantic (associated) memory if they are things or procedural memory if they are actions. You will use them as long as they work and over time they change to core beliefs or get discarded as wrong. Core beliefs are definite because you believe them yet they can still be wrong. The mind doesn't care because it works on appropriate and core beliefs are appropriate, even if they are wrong. Core beliefs can not be discarded. Often even if you know they are wrong.
Where do they come from? Well the first ones come from observations. We are born with practically empty brains, all the neurons are there and joined together but the only functioning part is the part we have no control of. The first nine days there is very little activity and we store nothing. After that everything is fair game. Everything is believable because we have nothing to compare it to to challenge it. Everything is an instant core belief. One of the first is that crying either gets attention or it doesn't. So the first core beliefs are acquired, they are not ours and don't become ours till we have enough information to make decisions. By this time any damage done is permanent. Damage is easy to do. You might think saying "your a fat little baby" is cute but baby doesn't know if this is true or not so since it came from some one you believe, it becomes true. It skips core thoughts because it comes from a reliable source. Next cores come from peers along with a lot of core thoughts from observations. the difference is of course belief.
My first negative core belief came at three and lasted till I was fifty.
Core beliefs I built or were installed were that I was not loveable, My mother gave me that one. That I was not wanted my brother gave to me and my family reinforced it. And there are lots more. Many contributing to my anxiety. Few changed.