Perception changes
Hearing, seeing or sensing things others do not can occur, but context and cause need professional evaluation.
Psychosis and schizophrenia
Psychosis signs, first-episode evaluation and when urgent help is needed
Psychosis can involve changes in perception, beliefs, thinking, speech or behavior. Early evaluation matters, but unusual experiences have many possible causes and an online screen cannot diagnose schizophrenia or predict who will develop psychosis.
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Important use limits
This hub is educational and the connected screener is not a diagnosis. Persistent, severe, worsening or safety-related concerns should be discussed with a qualified professional.
Overview
Psychosis is a clinical syndrome with many possible causes
Psychosis can involve hallucinations, delusions, disorganized thinking or behavior and marked changes in functioning. Symptoms can occur in schizophrenia-spectrum disorders, mood disorders, substance-related states, medical conditions and other contexts.
Belief changes
Strong fixed beliefs that are not shared by others may be part of a psychotic presentation.
Disorganization
Speech, thinking or behavior can become difficult to follow or markedly disorganized.
Functioning changes
Withdrawal, decline in self-care, school or work functioning can be important when they occur alongside other symptoms.
Connected screening route
Psychosis Risk Screen (PQ-B)
The PQ-B is a first-stage self-report screen for unusual experiences and related distress. A positive result does not mean someone has psychosis or will develop it; specialist follow-up is required to interpret risk.
21 unusual-experience itemsConditional distress ratingsFirst-stage onlyHigh-caution screening route
Evaluation
First-episode psychosis evaluation should be prompt and comprehensive
Assessment may include psychiatric symptoms, safety, substance use, medications, sleep, neurological or medical causes, mood symptoms, developmental history and collateral information when appropriate.
Urgency
Rapid change needs prompt assessment
New hallucinations, delusions, severe confusion or disorganization deserve timely professional evaluation.
Explore →DifferentialMany causes must be considered
Substances, mood episodes, sleep deprivation, neurological conditions and other medical problems can produce psychotic symptoms.
Explore →Early careEarly treatment can improve outcomes
Specialized first-episode psychosis services can coordinate medication, therapy, family support and recovery goals.
Explore →!
Immediate danger, severe confusion or inability to care for basic needs requires urgent help
If psychosis symptoms are accompanied by immediate danger, severe agitation, inability to stay safe, inability to care for basic needs, or another medical emergency, call 911 or seek emergency care now.
Use this hub well
Do not turn unusual experiences into a schizophrenia prediction
Screening can surface experiences worth discussing with a professional, but it cannot determine diagnosis, prognosis or whether a person will develop a psychotic disorder.
- Consider distress, functional change, safety and recent onset rather than one unusual experience in isolation.
- Review substance use, medications, severe sleep loss and medical causes with a professional.
- Seek prompt specialist evaluation for new or worsening psychotic symptoms.
Psychosis in context
Psychosis describes a syndrome, not one single diagnosis
Psychosis can involve hallucinations, delusions, disorganized thinking or marked difficulty distinguishing internal experiences from shared reality. It can occur in schizophrenia-spectrum conditions, mood disorders, substance-related states, medical or neurological conditions and other situations. That is why a first episode needs broader assessment rather than an online prediction.
| Change | Why it deserves attention |
|---|---|
| Perception | New voices, visions or other experiences that others do not share, especially when distressing or commanding. |
| Beliefs | Fixed beliefs that are difficult to reconsider and lead to fear, conflict or risky behavior. |
| Thinking and speech | Marked disorganization, difficulty following thoughts or communication that becomes hard to understand. |
| Function | Rapid decline in self-care, work, school, relationships or ability to manage basic needs. |
| Safety | Immediate danger, severe agitation, inability to care for basic needs or confusion requires urgent assessment. |
Early signs are not a schizophrenia diagnosis
Withdrawal, sleep disruption, suspiciousness, concentration problems or unusual experiences can have many explanations. A clinician may review the timeline, medications, substance use, mood symptoms, trauma, medical causes and family observations. The purpose is to identify what is happening and what support is needed, not to force a label from one symptom.
For a focused distinction, see psychosis vs schizophrenia and early signs of psychosis.
First-episode evaluation
Bring information about timing, substances, sleep and functional change
When unusual experiences are new, a clinician may ask exactly when they began, whether they appeared suddenly or gradually, what was happening with sleep, and whether alcohol, cannabis, stimulants or other substances were involved. Medication changes and medical or neurological symptoms are also important.
Family or friends can sometimes provide useful observations about changes in speech, self-care, suspiciousness, social withdrawal or functioning. Their perspective should add context rather than replace the person’s own account.
Early professional assessment matters because psychosis can have several causes and some are medically urgent. The goal of first contact is not to force a lifelong diagnosis; it is to identify immediate risk, clarify likely causes, reduce distress and connect the person with appropriate follow-up.
Evidence and source notes
Authoritative sources behind this page
These sources support the general educational framing on this hub. They do not substitute for individual medical advice or final independent clinical review of DesperateMinds content.
NIMH: Understanding Psychosis
NIMH provides education about psychosis, early warning signs, causes and treatment.
Read the source →NIMH: Schizophrenia
NIMH describes schizophrenia symptoms, diagnosis and treatment while emphasizing professional evaluation.
Read the source →Next step
New or worsening psychosis symptoms deserve prompt professional evaluation
Use Find Help for routine care navigation when safe to do so. If there is immediate danger, severe confusion or inability to stay safe, seek emergency help now.