The 'Ostrich Effect' is a cognitive bias where individuals actively avoid negative financial or administrative information. In ADHD, this bias is heavily magnified by 'Ambiguity Aversion.' The ADHD brain craves certainty and instant feedback. A sealed envelope is pure ambiguity.
The prefrontal cortex requires dopamine to step into the unknown. Because administrative tasks provide zero dopamine, the brain cannot override the fear mechanism in the amygdala. The amygdala initiates an 'Inhibitory Freeze'—it literally paralyzes your hands to prevent you from taking action that might result in psychological pain.
Furthermore, the ADHD working memory cannot tolerate "open loops" (unfinished tasks). The prefrontal cortex knows that if you open the bill but don't pay it immediately, the uncompleted task will consume massive amounts of background RAM, causing deep distress. The paralysis is the brain's attempt to keep the 'loop' from opening in the first place.
