If you have ever read a textbook description of schizophrenia, chances are you have come across Kurt Schneider's first-rank symptoms. For decades, their presence was considered nearly diagnostic. Modern research has been more cautious, and they no longer carry the weight they once did — but they remain a useful clinical vocabulary for describing the strange, hard-to-articulate experiences of psychosis.
Schneider's first-rank symptoms are a set of distinctive psychotic experiences once thought to be highly specific to schizophrenia; modern systems treat them as suggestive rather than diagnostic.
Who was Kurt Schneider?
Kurt Schneider (1887–1967) was a German psychiatrist whose 1959 textbook Klinische Psychopathologie was enormously influential in twentieth-century European psychiatry. He proposed that certain symptoms — when present in the absence of a known brain disease — were of first rank for diagnosing schizophrenia. Other classic symptoms (hallucinations of any kind, sustained delusional moods, perplexity) were of second rank: meaningful but less specific.
The symptoms
Schneider's eleven first-rank symptoms (groupings vary by translation) include:
- Audible thoughts — hearing one's own thoughts spoken aloud
- Voices arguing — two or more voices discussing the patient
- Voices commenting — running commentary on the patient's actions
- Somatic passivity — bodily sensations imposed by an outside force
- Thought withdrawal — thoughts being removed from the mind
- Thought insertion — thoughts being placed into the mind by others
- Thought broadcasting — thoughts being made known to others
- Made feelings — emotions imposed by an outside force
- Made impulses — drives or urges felt as imposed
- Made volitional acts — actions experienced as controlled by outside agents
- Delusional perception — a normal perception interpreted with sudden, idiosyncratic delusional meaning
What unites them is a sense of passivity — the boundary between self and other becoming porous. This is why first-rank symptoms are sometimes called passivity phenomena.
Their place in DSM and ICD
For most of the twentieth century, the influence of Schneider's symptoms varied across diagnostic systems. ICD-10 explicitly used several of them as defining features of schizophrenia. DSM-IV gave them special weight: a single first-rank symptom alone could meet the symptom criterion. DSM-5 and DSM-5-TR removed that special status, requiring two or more symptoms from a broader list (delusions, hallucinations, disorganised speech, grossly disorganised behaviour, negative symptoms) and at least one of those being a "core" positive symptom. ICD-11 has likewise shifted away from giving Schneider's symptoms a privileged role.
Why their special status was downgraded
Multiple studies, summarised in the systematic review by Soares-Weiser and colleagues for the WHO (2015), showed that first-rank symptoms are not specific to schizophrenia. They occur in:
- Bipolar disorder with psychotic features
- Schizoaffective disorder
- Substance-induced psychoses
- Temporal lobe epilepsy and other neurological conditions
- Severe dissociative disorders
- Some cases of post-traumatic stress disorder
Their sensitivity for schizophrenia is moderate — they appear in roughly half of cases — and their specificity is lower than once assumed. So the rule "first-rank symptoms equal schizophrenia" turned out to be too strong.
Why they still matter
Modern diagnostic systems have stepped back, but that does not mean Schneider's symptoms are unimportant. They:
- Provide vocabulary for experiences patients often struggle to describe
- Are still strongly associated with schizophrenia spectrum disorders
- Often signal the need for urgent assessment, especially when new in onset
- Are particularly valuable for training clinicians to recognise psychotic-spectrum experiences
For families and patients, knowing the names of these experiences can also reduce shame: "thought insertion" is a recognised symptom, not a moral failing or a strange personal quirk.
You or a loved one is experiencing voices commenting on behaviour, the sense that thoughts are being inserted or removed, or that actions are controlled by outside forces. These experiences need timely psychiatric evaluation — they do not always mean schizophrenia, but they always deserve assessment.
How clinicians use them today
A modern psychiatric assessment will still ask about each of these phenomena, but no single one is treated as diagnostic on its own. The clinician integrates symptoms across time, considers mood and substance use, screens for medical causes, and uses the broader DSM-5-TR or ICD-11 criteria to reach a diagnosis. Read more in our overview of DSM-5 criteria for schizophrenia.
Resources
- NIMH — Schizophrenia overview
- WHO — ICD-11 browser
- WHO/Cochrane review of first-rank symptoms (Soares-Weiser et al.)
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.