For those with disordered avoidance, a common theme is the inability to do something which is beneficial and, perhaps more importantly, even pleasurable.
For those that study motivation, intrinsic or otherwise...
In the situation where one chooses to do nothing or something else --not because it is preferable or more enjoyable but simply because they are unable to psychologically tolerate the object of their own desire....
Question: what does it mean to "want to" if one is unable to force oneself to do? And, what areas of the brain are competing in such a struggle with the self?
(Differentiate this from procrastination in which there is a preference for one active over another in the short term)