Im guessing that you dont lack in imagination and concentration because thats what dissociation is....

dissociation is like moving from point A, to point B to point C.....by that I mean it has different points of reference....normal (examples concentrating, imagination , thinking about things so deeply that you dont pay attention to whats outside yourself and your thoughts.) then it moves along the line into the abnormal of what here in america we call each of the dissociative disorders depending upon many other factors and problems/accompanying symptoms.

every human being naturally has normal dissociative times in their lives. you may want to read some of your past posts, I bet doing that you will be able to find many instances where you posted about things that include concentrating and using your imagination.

i do know some people have a harder time concentrating and using their imagination when they are on meds or using medical marijuana or stressed out....gosh there are many different things that can interfere with a persons concentration/imagination processes.

suggestion maybe you can talk with your treatment providers. there are ways ...meds, mental exercises and such that can help you to improve your concentration/imagination skills. one thing I do is play matching games. take a deck of cards, shuffle and then place them face down. then pick up two cards at a time, if they dont match put them back the way they were. you will be surprised at how fast your brain does its natural concentration skill of letting you know where the matches are as you go through the game. the game /mental exercise ends when all cards have been matched.