Watch for
Feeling strongly that an idea is yours when it might be something you encountered before.
Memory & AttentionBias #62
Cryptomnesia
Forgotten memories feel like original ideas.
A memory error where a forgotten memory returns without being recognised as a memory leading the person to believe it is an original newly generated idea.
Why it matters: Responsible for many unintentional plagiarism cases in music literature and science.
Try this
When you have a creative insight search for existing sources before claiming originality.
Real-world example
A songwriter creates a melody they believe is original only to discover it matches an existing song they heard years ago.
Key researchers
Carl Jung, Daniel Wegner
First described in 1970
Psychological mechanism
Source monitoring error. The memory trace of the fact is preserved but the contextual tag indicating its source (when and where you learned it) has decayed or detached making it feel self-generated.
Seminal research
Explored by Carl Jung as "cryptomnesia" and later systematically studied by Daniel Wegner and colleagues.
Related Biases
Below is a realistic scenario. Read it, then choose what you would do. The feedback will show whether a cognitive bias influenced your choice — not to judge, but to reveal the pattern in action.
Thought Experiment
This experiment places you in a realistic decision. Your instinctive choice will reveal whether bias is at work.
STEP 1 → ReadSTEP 2 → ChooseSTEP 3 → Reveal
Debrief
Cryptomnesia happens because memory has two components: the content and the source tag. If the source tag fades the content feels self-generated. This is why creative people sometimes unintentionally plagiarise. Always check existing sources when inspiration strikes.
Sources
Original ResearchWegner (1987) — Cryptomnesia research
EducationalAPA Dictionary entry