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BrainHook Glossary

Self-other Entanglement

A cognitive process where anxious individuals project their own self-traits onto others, making others appear as reflections of their internal inadequacy or lovability.

Self-other Entanglement — BrainHook Glossary card

Self-other entanglement is a cognitive process in social psychology where individuals project traits of their own self-concept onto others, causing others to appear as reflections of their internal state. It is distinct from identity merger, occurring primarily in anxious attachment where self-referential processing shifts under relational threat to confirm perceived inadequacies or lovability in another person.

What this means in real life

A parent becomes so focused on managing their adult child's anxiety that they can't tell where their child's worry ends and their own begins—they feel responsible for fixing it and experience the same panic, even when the child is coping fine.

What it isn’t

It is not simply empathy or caring about someone else. Empathy lets you understand another's feelings while keeping your own identity intact; entanglement means losing that boundary so thoroughly that you can't separate your emotional state from theirs.

Commonly misused online

Often used as a trendy synonym for 'codependency' or 'toxic relationship,' when it actually describes a specific psychological mechanism—the blurring of self-boundaries—that can occur in many relationship contexts, not just romantic ones.