Delusions

Delusions of control: external forces moving the body

March 19, 2026 7 min read

Delusions of control are among the most distinctive experiences in psychosis. Unlike persecutory or referential delusions, which are about beliefs about the world, delusions of control involve a disturbance in the basic sense of being the agent of one's own body and mind. A person may feel that their arm is being moved by an outside force, that an emotion has been "placed" in them, or that an action they performed was not really their own.

In one sentence

A delusion of control — sometimes called a passivity phenomenon — is the experience that one's own actions, feelings, or impulses are being caused or directed by an external agent rather than one's own self.

The Schneiderian background

The German psychiatrist Kurt Schneider in the 1950s identified a list of "first-rank symptoms" he believed were particularly suggestive of schizophrenia. Several of them are forms of delusion of control:

Modern diagnostic systems no longer treat first-rank symptoms as pathognomonic — they appear in other conditions and not all schizophrenia cases include them — but they remain a useful clinical vocabulary. The DSM-5-TR recognises these as types of bizarre delusions.

What it can feel like

People who have lived through delusions of control describe experiences such as:

The experience is not metaphorical. It is the literal felt sense that the boundary between self and not-self has been crossed.

Why this happens — current thinking

Researchers think delusions of control reflect a disruption in what neuroscientists call predictive motor signalling or the sense of agency. When you move your arm, your brain normally generates a "copy" of the motor command — a so-called efference copy — that lets you predict and recognise the movement as your own. In schizophrenia, this signalling appears disturbed, so movements and impulses generated by one's own brain do not feel self-generated. The brain then constructs an explanation for the foreign-feeling movement, and that explanation becomes the delusion.

Differential diagnosis

Other conditions can produce similar experiences and need to be ruled out:

Risk and safety

Delusions of control can drive dangerous behaviour because the person may feel compelled by an outside force and may not feel responsible for their actions. Made impulses to harm self or others should be treated as urgent.

Seek care if

A loved one describes being "made" to do dangerous things, hearing commands they feel they must obey, or feeling that an outside force is moving their body to harm. Call 988 in the US, your local emergency number, or take them to an emergency department.

Treatment

Antipsychotic medication is the first-line treatment, and delusions of control typically reduce in intensity along with other positive symptoms over weeks of treatment. Severe or persistent first-rank symptoms in someone who has not responded to two adequate trials of antipsychotics should raise the question of clozapine. CBTp can help people make sense of these experiences, reduce distress, and rebuild a sense of agency over time.

What helps in the moment

For someone who is currently experiencing delusions of control, the goal is grounding and safety, not argument:

For practical resources, see our pieces on grounding techniques and how to talk to someone in psychosis.


This article is for educational purposes only and is not medical advice, diagnosis, or treatment. Always consult a qualified mental health professional. If you or someone you know is in crisis, call or text 988 in the US, or your local emergency number.

Frequently asked questions

Are delusions of control specific to schizophrenia?
They are most strongly associated with schizophrenia and were classically called Schneiderian first-rank symptoms, but they can also appear in schizoaffective disorder, severe bipolar with psychotic features, and substance-induced psychosis.
Can someone refuse responsibility for an act they experienced as 'made'?
Legal responsibility is decided case by case and depends on jurisdiction. Clinically, the experience is real to the person and treatment is the priority, but legal questions are separate and may involve forensic evaluation.
Do these symptoms ever fully resolve?
Yes, often. With effective treatment many people no longer experience delusions of control between episodes. Some have residual symptoms that are less intense and less distressing over time.

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