The basal ganglia (the brain's reward center) operates on 'Expected Value.' It calculates: [Reward] minus [Friction]. For preparing taxes, the reward is a potential refund (which is delayed, meaning 'Temporal Discounting' reduces its neurological value to near zero). The friction, however, is phenomenally high: gathering documents, finding passwords, doing math.
Because the Friction wildly outweighs the Reward, the brain's algorithm returns a 'Negative Expected Value.' The prefrontal cortex actively refuses to send the 'Go' signal to the motor cortex. It physically will not let you initiate the task.
Simultaneously, 'Ambiguity Aversion' creates an active stress response. The ADHD brain craves clear, immediate feedback. Tax forms are pure ambiguity—complex language, undefined outcomes. The brain interprets this ambiguity as a risk, spiking cortisol levels. You are desperately attempting to execute a low-dopamine task while experiencing a high-cortisol panic attack.
