A patient has produced content that you suspect may not be as original as they believe. Before revealing the answer, decide how you would explore whether this is cryptamnesia.

Where possible, try to establish whether the content actually corresponds to something the patient could genuinely have encountered before, such as a book, conversation, or piece of media, since cryptamnesia specifically requires that the material really was previously encountered somewhere. Assess the patient's sincerity and degree of conviction that the material is original, since the misattribution is genuine and unintentional rather than a deliberate deception, and this distinguishes cryptamnesia from ordinary plagiarism. Ask whether this pattern affects creative or intellectual output more broadly, such as writing or problem-solving, since this is a recognised context in which cryptamnesia becomes noticeable, and note that its clinical significance, where it occurs in isolation, remains genuinely uncertain compared with several of the other, better-characterised distortions of recall.