Surveillance, poisoning, implanted-device, or espionage beliefs can occur during delirium, seizures, neurological illness, infection, endocrine or metabolic problems, medication reactions, intoxication, and withdrawal. The story’s theme does not reveal the cause.
One warning sign can be enough to change the safest care setting. Give responders the observable sign and the time it began.
Rapidly developing mission beliefs, paranoia, voices, severe insomnia, agitation, confusion, or unusually elevated mood during pregnancy or after birth should not be managed only with reassurance or a routine future appointment.
This comparison is not a self-diagnostic test. Delirium and dementia can coexist with a psychiatric disorder, and a clinician must assess the whole picture.
| Feature | Delirium or acute encephalopathy | Primary psychosis may more often show |
|---|---|---|
| Onset | Hours to days, often linked to illness, medication, withdrawal, surgery, injury, or metabolic change. | May be gradual or acute, but without the defining global attention disturbance of delirium. |
| Attention | Markedly impaired; the person cannot reliably sustain or shift attention. | Can be distracted or preoccupied, but basic alertness and attention may be more stable. |
| Course | Fluctuates through the day, sometimes with brief lucid periods. | Beliefs and hallucinations may remain more consistent across the day. |
| Orientation and memory | Disorientation and short-term memory failure are common. | Orientation can remain intact, especially outside severe disorganization. |
| Perceptual experiences | Visual illusions, vivid visual hallucinations, misidentification, and fragmented fear may dominate. | Auditory hallucinations and organized delusional explanations may be more prominent. |
| Treatment priority | Identify and treat the physiological cause while reducing immediate distress and risk. | Treat the psychiatric syndrome while still checking for medical and substance-related causes. |
Stopping alcohol, benzodiazepines, some sedatives, corticosteroids, or other prescribed treatments suddenly can worsen illness or create withdrawal risk. For severe symptoms, use emergency or poison services. Otherwise contact the prescriber, pharmacist, or urgent medical service for a supervised plan.
MedlinePlus
Symptoms, causes, diagnosis, and treatment of delirium.
National Institute on Aging
Information about sudden confusion and medical causes in older adults.
National Institute of Neurological Disorders and Stroke
Government medical overview of encephalitis.
Autoimmune Encephalitis Alliance
Information and support for autoimmune encephalitis, which can present with psychiatric symptoms.
America’s Poison Centers
Immediate expert guidance for possible poisoning or medication exposure in the United States.
U.S. Food and Drug Administration
Official safety alerts for prescription and over-the-counter medicines.
U.S. Food and Drug Administration
Official information for reporting serious medication and medical-product adverse events in the United States.
Note: Do not abruptly stop a prescribed medication unless emergency clinicians advise it; contact the prescriber or urgent care.
NHS
Urgent information about psychosis after childbirth.
Action on Postpartum Psychosis
Specialist information and peer support for people and families affected by postpartum psychosis.
Note: New or rapidly worsening postpartum psychosis symptoms need urgent medical assessment.
Postpartum Support International
International and U.S. pathways to perinatal mental-health support, provider directories, and peer resources.
Note: Use emergency services for immediate danger or rapidly developing postpartum psychosis symptoms.
Espionage Psychosis is an educational resource, not a diagnosis, emergency service, law-enforcement service, or substitute for a licensed clinician. Actual stalking, abuse, and privacy violations can occur; serious concerns deserve calm professional assessment without automatically confirming or dismissing them.