The basal ganglia uses environmental stimuli to trigger cognitive sets. When you enter an office building, the visual cues (cubicles, fluorescent lights, business clothes) activate the brain's 'Productivity Network' (TPN).
At home, these cues are missing. The ADHD brain's 'Default Mode Network' (DMN)—responsible for daydreaming and internal distraction—remains highly active because the environment signals 'safety and rest.' Trying to force the TPN online using pure willpower while sitting in your living room requires immense, unsustainable glucose consumption in the prefrontal cortex.
Furthermore, the absence of 'Body Doubling' is fatal. Mirror neurons in the human brain automatically mimic the behavior of those around us. If four people near you are typing intensely, your mirror neurons make it chemically easier for you to type. At home alone, your mirror neurons are isolated, cutting off this vital source of "activation energy."
