Somatoparaphrenia is a rare delusion in which a person denies that one of their limbs, or an entire side of their body, belongs to them -- even when shown direct proof. Patients don't just forget the limb is theirs; they invent an explanation for ...
In 1985, Mariko Aoki wrote to a Japanese magazine about her bookstore bathroom problem. The magazine got so many responses that they named the phenomenon after her.