Weyburn Mental Hospital
E389498
Weyburn Mental Hospital was a Canadian psychiatric institution in Saskatchewan known for its pioneering but controversial mid-20th-century experiments with psychedelic drugs and innovative approaches to mental health treatment.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Weyburn Mental Hospital canonical | 1 |
| Weyburn Mental Hospital and Training School | 1 |
| Weyburn Mental Institution | 1 |
| Weyburn Psychiatric Hospital | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3793286 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Weyburn Mental Hospital Context triple: [Humphry Osmond, workedAt, Weyburn Mental Hospital]
-
A.
Medfield State Hospital
Medfield State Hospital is a historic, now-closed psychiatric hospital in Medfield, Massachusetts, known for its extensive campus and frequent use as a filming location for movies and television.
-
B.
Ashecliffe Hospital for the Criminally Insane
Ashecliffe Hospital for the Criminally Insane is the fictional, isolated psychiatric facility on Shutter Island that serves as the central setting for the psychological thriller of the same name.
-
C.
Battle Creek Sanitarium
Battle Creek Sanitarium was a famous health resort and medical institution in Battle Creek, Michigan, led by Dr. John Harvey Kellogg and known for pioneering diet, exercise, and holistic wellness practices in the late 19th and early 20th centuries.
-
D.
Backus Hospital
Backus Hospital is a regional acute care medical center serving the community of Norwich and eastern Connecticut.
-
E.
Trenton Psychiatric Hospital
Trenton Psychiatric Hospital is a state-run mental health facility in New Jersey that provides inpatient psychiatric care and treatment services.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Weyburn Mental Hospital Target entity description: Weyburn Mental Hospital was a Canadian psychiatric institution in Saskatchewan known for its pioneering but controversial mid-20th-century experiments with psychedelic drugs and innovative approaches to mental health treatment.
-
A.
Medfield State Hospital
Medfield State Hospital is a historic, now-closed psychiatric hospital in Medfield, Massachusetts, known for its extensive campus and frequent use as a filming location for movies and television.
-
B.
Ashecliffe Hospital for the Criminally Insane
Ashecliffe Hospital for the Criminally Insane is the fictional, isolated psychiatric facility on Shutter Island that serves as the central setting for the psychological thriller of the same name.
-
C.
Battle Creek Sanitarium
Battle Creek Sanitarium was a famous health resort and medical institution in Battle Creek, Michigan, led by Dr. John Harvey Kellogg and known for pioneering diet, exercise, and holistic wellness practices in the late 19th and early 20th centuries.
-
D.
Backus Hospital
Backus Hospital is a regional acute care medical center serving the community of Norwich and eastern Connecticut.
-
E.
Trenton Psychiatric Hospital
Trenton Psychiatric Hospital is a state-run mental health facility in New Jersey that provides inpatient psychiatric care and treatment services.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
mental health institution
ⓘ
psychiatric hospital ⓘ |
| alsoKnownAs |
Weyburn Mental Hospital
ⓘ
surface form:
Weyburn Mental Hospital and Training School
Weyburn Mental Hospital ⓘ
surface form:
Weyburn Mental Institution
Weyburn Mental Hospital ⓘ
surface form:
Weyburn Psychiatric Hospital
|
| architecturalStyle | Collegiate Gothic ⓘ |
| country | Canada ⓘ |
| criticizedFor |
institutional conditions typical of large asylums of the era
ⓘ
use of powerful psychoactive drugs on vulnerable patients ⓘ |
| demolished | most original buildings demolished after closure ⓘ |
| dissolved | 1971 ⓘ |
| employed |
Abram Hoffer
ⓘ
Duncan Blewett ⓘ Humphry Osmond ⓘ |
| fieldOfWork |
psychedelic research
ⓘ
psychiatry ⓘ psychopharmacology ⓘ |
| hasResearcher |
Abram Hoffer
ⓘ
Duncan Blewett ⓘ Humphry Osmond ⓘ |
| hasUse |
institutional care for people with mental illness
ⓘ
psychiatric care ⓘ psychiatric research ⓘ |
| inception | 1921 ⓘ |
| influenced |
Canadian mental health policy reforms in mid-20th century
ⓘ
development of psychedelic-assisted psychotherapy ⓘ |
| locatedIn | Weyburn, Saskatchewan ⓘ |
| locatedInAdministrativeTerritory | Saskatchewan ⓘ |
| locatedInTimeZone |
Central Time Zone
ⓘ
surface form:
Central Standard Time
|
| locationOfDiscovery | term "psychedelic" coined by Humphry Osmond ⓘ |
| notableFor |
controversial mid-20th-century psychedelic experiments
ⓘ
early clinical use of LSD in psychiatry ⓘ innovative approaches to mental health treatment ⓘ large-scale institutional care of psychiatric patients in Saskatchewan ⓘ |
| numberOfBeds | approximately 1500 ⓘ |
| opened | 1921 ⓘ |
| operatedBy | Government of Saskatchewan ⓘ |
| ownedBy | Government of Saskatchewan ⓘ |
| participantIn |
Saskatchewan model of psychiatry
ⓘ
early North American psychedelic therapy movement ⓘ |
| replacedBy | community-based mental health services in Saskatchewan ⓘ |
| researchFocus |
biochemical theories of schizophrenia
ⓘ
use of LSD to model psychosis ⓘ use of psychedelics in treatment of alcoholism ⓘ |
| significantEvent |
closure and deinstitutionalization of patients in the late 1960s and early 1970s
ⓘ
introduction of LSD in psychiatric research ⓘ pioneering psychedelic drug experiments in the 1950s ⓘ |
| usedDrug |
lysergic acid diethylamide (LSD)
ⓘ
mescaline ⓘ other hallucinogenic substances in research ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Weyburn Mental Hospital Description of subject: Weyburn Mental Hospital was a Canadian psychiatric institution in Saskatchewan known for its pioneering but controversial mid-20th-century experiments with psychedelic drugs and innovative approaches to mental health treatment.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Weyburn Mental Hospital and Training School
this entity surface form:
Weyburn Psychiatric Hospital
this entity surface form:
Weyburn Mental Institution