Decentering: How to See a Thought as a Mental Event, Not a Fact
Decentering is the ability to step back from a thought and see it as a mental event passing through, rather than as a fact about the world or about you. This guide explains where the idea comes from, why it matters for depression and anxiety, and the simple cue that makes it practical.
Reviewed byMichael Callans, MSWKey terms
A four-step decentering practice
- Notice: catch the thought as it arrives. A useful tell is a sudden change in mood or a tightening in the body.
- Label: say slowly, 'I am having the thought that [the thought].' If it helps, add 'I notice I am having the thought that...'.
- Observe: is the thought loud or quiet, fast or slow, old or new? Describe it like weather you are watching, not an argument you are losing.
- Return: bring attention back to what you were doing or to your breath. When the thought returns, and it will, repeat from step one. Each return is one repetition of the skill.
Decentering compared with two things it is not
Decentering
Sees the thought as a mental event. Lets it stay in view. Asks: what is this? Loosens the grip without changing the content.
Restructuring (CBT)
Engages with the content. Weighs the evidence and writes a balanced alternative. Useful, and partly works because it requires stepping back first.
Suppression
Treats the thought as a threat and pushes it away. Requires monitoring for its return, which keeps it active. Tends to backfire.
When to go gently
If stepping back from thoughts leaves you feeling unreal or detached from your body, stop and use a grounding exercise before trying again. If the thought you are practicing on is about ending your life, do not observe it and move on: use a safety plan and talk to someone today.
About this tool
Decentering is the ability to observe a thought or feeling as a mental event that is passing through you, rather than as a fact about the world or a statement of who you are. When the thought 'I am going to mess this up' arrives, a person who is fused with it experiences a prediction; a person who has decentred experiences a thought about messing up, noticed from a step back. The content is the same. What changes is the relationship to it, and that change is what the research on decentering says matters.
The term was introduced into cognitive therapy by Jeremy Safran and Zindel Segal in 1990, and it became a central idea in mindfulness-based cognitive therapy (MBCT), developed by Segal, Mark Williams and John Teasdale for preventing relapse in recurrent depression. Teasdale's interest came from a puzzle. Cognitive therapy was supposed to work by changing the content of beliefs, yet patients often got better without their beliefs changing much. He proposed that what really protected people was a shift in how they related to their thoughts: a capacity he called metacognitive awareness, which is decentering by another name. In a 2002 study, Teasdale and colleagues showed that both cognitive therapy and MBCT increased this capacity in people recovered from depression, and that higher levels predicted a lower risk of relapse.
The same idea appears across several traditions under different names, which is part of why people find it confusing. Acceptance and commitment therapy calls it cognitive defusion, and ACT contributed the best-known practical cue. Shauna Shapiro and colleagues called it reperceiving in their model of how mindfulness works. Metacognitive therapy talks about detached mindfulness. Bernstein and colleagues reviewed these constructs in 2015 and argued they share three processes: meta-awareness (noticing that you are thinking), disidentification (experiencing the thought as separate from the self), and reduced reactivity to thought content. If you can do those three things, you are decentering, whatever your therapist calls it.
The most practical cue comes from ACT. Take the thought and put 'I am having the thought that' in front of it. 'I am a failure' becomes 'I am having the thought that I am a failure.' Said slowly, the sentence creates a small gap between you and the content. A second step, if you want it, is 'I notice I am having the thought that I am a failure.' The point is not to make the thought sound silly or to argue with it. The point is to label it accurately as what it is: a thought, produced by a mind, arriving at a moment, which will be followed by another thought. Many people find that once the thought is correctly labeled, its emotional charge drops without any further work.
Decentering is often confused with two things it is not. It is not cognitive restructuring, the CBT skill of examining the evidence for a thought and writing a more balanced one. Restructuring engages with the content; decentering steps back from it. Both are useful, and Teasdale's point was that restructuring may work partly because it forces a person to decentre in order to look at the thought at all. Decentering is also not suppression or distraction. Pushing a thought away requires treating it as a threat and monitoring for its return, which keeps it active. Decentering lets the thought stay in view while loosening its grip. If you find yourself using 'I am having the thought that' as a way to make the thought leave, you have slipped into suppression.
The research is encouraging and still developing. Decentering can be measured with self-report scales such as the Experiences Questionnaire, and several studies have found that increases in decentering during MBCT and related programmes track improvement in depression and anxiety, consistent with it being an active ingredient. Meta-analyses of mindfulness-based interventions find they reduce depressive relapse and symptoms of anxiety, and decentering is one of the more consistently supported mechanisms. What the evidence does not yet show is that decentering practiced on its own, outside a structured program, produces the same effects, or that it works equally for everyone. Treat it as a well-supported skill within a larger approach rather than a stand-alone cure.
Decentering tends to help most with recurrent depression, where rumination pulls old patterns back into action, and with anxiety and worry, where thoughts are treated as forecasts. It helps with self-critical thinking and with the sticky, repetitive thoughts of perfectionism. It is less suited to situations where the thought is carrying information you need to act on; decentering from 'I should get this mole checked' is not the goal. And it needs care in two groups. People prone to dissociation or depersonalisation can find that stepping back from thoughts tips into feeling unreal, in which case grounding comes first. And a thought of suicide is not something to observe neutrally and move past; it is a reason to use a safety plan and talk to someone.
The common mistakes are predictable. Using the cue only in a crisis, when the skill has not been built in calm conditions. Treating the thought as false because it is 'only a thought': decentering says nothing about whether a thought is true, only that its truth is a separate question from its presence. Turning the practice into an argument, where every 'I am having the thought that' is followed by 'but that is not true'. And expecting the thought to leave. Thoughts come back. The skill is noticing them come back, labeling them again, and returning to what you were doing, as many times as it takes.
Decentering is taught properly in MBCT, in ACT, and in many mindfulness programmes, usually over eight weeks with a trained teacher. If your thoughts are driving persistent low mood, if you have had three or more episodes of depression, or if rumination is stealing hours a day, that structured route is worth the time and a licensed therapist can help you find it. The printable summarises the key terms and gives you a four-step practice to start with.
References
- Safran JD, Segal ZV. Interpersonal Process in Cognitive Therapy. New York: Basic Books; 1990.
- Teasdale JD, Moore RG, Hayhurst H, Pope M, Williams S, Segal ZV. Metacognitive awareness and prevention of relapse in depression: empirical evidence. J Consult Clin Psychol. 2002;70(2):275–287.
- Segal ZV, Williams JMG, Teasdale JD. Mindfulness-Based Cognitive Therapy for Depression. 2nd ed. New York: Guilford Press; 2013.
- Fresco DM, Moore MT, van Dulmen MHM, et al. Initial psychometric properties of the Experiences Questionnaire: validation of a self-report measure of decentering. Behav Ther. 2007;38(3):234–246.
- Bernstein A, Hadash Y, Lichtash Y, Tanay G, Shepherd K, Fresco DM. Decentering and related constructs: a critical review and metacognitive processes model. Perspect Psychol Sci. 2015;10(5):599–617.
Cite this source
Psychology.com. (2026, October 19). Decentering. Psychology.com. https://psychology.com/tools/decentering
Decentering FAQ
What does decentering mean in psychology?
Decentering means observing your thoughts and feelings as passing mental events rather than as facts about the world or truths about you. The thought 'nobody likes me' is experienced as a thought that has arrived, not as a verdict. The term was brought into cognitive therapy by Safran and Segal in 1990 and became central to mindfulness-based cognitive therapy, where John Teasdale and colleagues found that this stance, which they also called metacognitive awareness, predicted a lower risk of depressive relapse. The content of the thought does not have to change; the relationship to it does.
Is decentering the same as cognitive defusion?
Close enough that most clinicians use the terms interchangeably. Decentering comes from the cognitive therapy and MBCT tradition; cognitive defusion is the acceptance and commitment therapy term for the same shift, and ACT supplied the best-known exercises, including 'I am having the thought that' and leaves on a stream. Other names for the overlapping idea include reperceiving and detached mindfulness. A 2015 review by Bernstein and colleagues argued they all involve noticing that you are thinking, experiencing the thought as separate from yourself, and reacting less to its content.
How do I practice decentering?
Start with a mild, irritating thought rather than a frightening one. When it arrives, say slowly, 'I am having the thought that...' followed by the thought. Notice what changes. Then describe the thought as if it were weather: loud or quiet, familiar or new. Finally, return your attention to what you were doing. When the thought comes back, repeat. Practise several times a day for a week before applying it to heavier thoughts, and do it when you are calm as well as when you are not, because the skill is built in calm and spent in difficulty.
Does decentering mean my thoughts are not true?
No. Decentering says nothing about whether a thought is accurate; it separates the question of whether the thought is present from the question of whether it is true. Some thoughts you decentre from will turn out to be right, and you can act on them with a clearer head. The mistake is to turn the practice into an argument, following every 'I am having the thought that' with 'but that is not true'. That is restructuring, a different and also useful skill. Decentering simply gives you room to decide whether the thought deserves a response.
Can decentering help with depression?
The evidence suggests it is one of the ways mindfulness-based cognitive therapy prevents relapse. Teasdale and colleagues showed in 2002 that MBCT increased metacognitive awareness in people recovered from depression and that higher awareness predicted lower relapse. Later studies have found increases in decentering track symptom improvement in MBCT and related programmes. It has been studied mainly inside structured eight-week courses, so practicing it on your own may help but has less evidence behind it. If you have had repeated episodes of depression, a full MBCT course with a trained teacher is the better-supported route.
Is decentering safe for everyone?
For most people, yes. Two groups need care. People prone to dissociation or depersonalisation can find that stepping back from thoughts tips into feeling unreal; if that happens, stop and use a grounding exercise, and consider working with a therapist rather than alone. And a thought about ending your life should not be treated as something to observe and move past. It is a reason to use a safety plan and to talk to someone today. In an emergency, call your local emergency number or, in the US, call or text 988.