Am I Normal?habits
I lock the door, walk five steps, and immediately doubt whether I locked the door
Automatic behaviours like locking doors are processed in procedural memory without creating a strong episodic memory trace. Because the action was automatic, there is no clear memory of doing it, which triggers doubt. The uncertainty is real, not irrational.
Have you ever done this?
Be honest — have you ever done this?
Related fact
The word "automatic" comes from the Greek automatos, meaning acting of itself — the brain designed routine actions to run on autopilot to free up conscious resources.