This is the reverse of ADHD. I most people, their brain produces almost enough internal stimulation to keep itself happy. They still need a small amount to get there though. This can be external (books, films, conversation etc) or internal. In ADHD, the level is low enough that it can't be pulled up enough internally, leading to the short term novelty seeking that is the classic symptom.
At the other end, is this. For some people, the level of natural stimulation is enough to be happy, independent of external (or even internal) sources. They don't need the boost. They are happy sitting staring at a wall, and possibly see it as a nice break from the overstimulation of normal life.
This is the reverse of ADHD. I most people, their brain produces almost enough internal stimulation to keep itself happy. They still need a small amount to get there though. This can be external (books, films, conversation etc) or internal. In ADHD, the level is low enough that it can't be pulled up enough internally, leading to the short term novelty seeking that is the classic symptom.
At the other end, is this. For some people, the level of natural stimulation is enough to be happy, independent of external (or even internal) sources. They don't need the boost. They are happy sitting staring at a wall, and possibly see it as a nice break from the overstimulation of normal life.
In their own way, these people are scary.