Cognitive Defusion
Updated 2026-08-08
INTRODUCTION
English translation pending.
CORE DEFINITION
A core process in acceptance and commitment therapy, developed by Steven Hayes and colleagues. Fusion is the ordinary state in which a thought is experienced as literal truth that must be acted upon; defusion is the deliberate shift to noticing the thought as a thought. Standard techniques include prefixing the statement with a phrase such as 'I am having the thought that', repeating the thought in a comic voice, or visualizing it as a passing cloud. The aim is not to remove or replace the thought but to reduce its power to dictate behavior.
SCAFFOLDING EFFECT
Reduce cognitive load
- Observer shift: relabel a self-critical thought as an event you are noticing rather than a fact you are stating. - Distance technique: repeat the thought in a slow or comic voice to strip it of authority. - Value reconnection: carry the thought along while still taking the action your values require.
Anchor fast decisions
A thought's behavioral power comes from its context, not from its content. When a verbal statement functions as a description of reality, the listener inside the head must comply with it; when the same words are framed as a mental event, they become one stimulus among many. Changing the context around the words, through prefixes, tempo, or imagery, changes their function without changing their content, so the person can act on values instead of on the thought.
MINIMUM ACTION
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Source support: Explicit
- en.wikipedia.orghttps://en.wikipedia.org/wiki/Acceptance_and_commitment_therapyverified
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