Among all the experiences in psychosis, command hallucinations are the ones that most worry patients, families, and clinicians. A command hallucination is a voice or other auditory experience that instructs the person to do something — usually a small, mundane action, sometimes something harmful. The popular fear that "the voices made him do it" is far less common in reality than in headlines, but the experience is still deeply distressing and worth understanding clearly.
Command hallucinations are voices that issue instructions; most commands are mundane and most are not obeyed, but those that involve self-harm or harm to others need urgent clinical attention.
What command hallucinations actually involve
Studies of people with command voices, including a widely cited body of work by Alan Bell and Max Birchwood at the University of Birmingham, find that the great majority of commands are mundane: "stand up," "drink water," "go to the kitchen." A smaller fraction involve more serious actions, including self-harm, harm to others, or socially inappropriate behaviour.
The crucial finding is that compliance with commands is not the default. Most people most of the time do not obey their voices, especially when commands involve harm. Compliance is more likely when:
- The voice is identified as familiar or trusted
- The command is consistent with what the person already wanted to do
- The person believes the voice is omnipotent or all-knowing
- The person fears retribution from the voice for disobeying
- Substance use is involved
Why this matters clinically
Risk assessment for command hallucinations is not as simple as "does the person hear commands to harm." It includes the person's beliefs about the voice, their history of past compliance, their current substance use, and the surrounding context. The NICE psychosis guideline emphasises individualised risk planning rather than blanket assumptions.
How CBT for psychosis approaches commands
One of the most effective non-medication approaches is to work directly with beliefs about the voices — particularly beliefs about their power. CBTp for command voices typically helps the person:
- Notice that they have, in fact, disobeyed the voice many times before without consequences
- Identify the difference between a voice's confidence and its actual authority
- Practice small, planned acts of disobedience to test predictions
- Develop an internal voice that responds to the command — "I see you, but I'm not doing that"
The COMMAND trial, published in The Lancet Psychiatry (Birchwood et al., 2014), found that targeted CBT reduced compliance with harmful commands compared to standard care. See our CBTp for voices guide.
Avatar therapy
Avatar therapy, in which the person creates a digital character to represent the voice and engages with it under therapist guidance, has shown particular promise for distressing voices including commanding ones. See our avatar therapy piece.
Medication
Antipsychotic medication reduces voice frequency and intensity for many people. Clozapine has the strongest evidence for voices that have not responded to other antipsychotics. For some people, command voices fade entirely on medication; for others they soften but remain. See our clozapine overview.
Practical safety planning
If you or a loved one experiences command voices, especially harmful ones, building a safety plan with a clinician is essential. Components typically include:
- An identified person to call when commands intensify
- A simple, written script for what to do (e.g., "call my therapist, leave the room, take a PRN if prescribed")
- Agreed-upon early warning signs that signal the need for clinical contact
- A plan for reducing access to means of self-harm
- A plan for crisis services — see 988
Command voices are urging self-harm or harm to others, or if the urge to obey feels strong. Call 988 in the US, your local crisis line, or go to an emergency department. See when to call 911.
What helps in the moment
People who manage command voices well often describe a few common strategies:
- Naming the voice — labelling it ("that's the critic") creates psychological distance
- Negotiating — agreeing to a less harmful version of the command, or delaying
- Distraction — music, a phone call, intense exercise
- Physical grounding — cold water, ice, strong sensory input
- Reality-checking with a trusted person
- Not arguing — engaging in a long debate often makes voices louder, not quieter
What helps families
If a loved one experiences command voices, the most useful things you can do are stay calm, take their experience seriously without confirming the voice's authority, and know the safety plan. You don't need to argue the voice away. You need to be a stable presence and know who to call. Our piece on talking to someone in psychosis covers practical language.
The big picture
Command hallucinations sound terrifying, and they can be. They are also, with the right combination of medication, therapy, and planning, highly manageable for most people who experience them. The most important shift in modern care has been moving from "obey the voice" framing to a more accurate one: the voice is part of the person's experience, but the person retains the agency to choose what to do.
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.