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the claim

Alcohol, certain drugs, brain tumors, brain infections, and stroke can cause psychosis.

the verdict
SUPPORTED
the evidence backs this
Recorded sources
4 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that Alcohol, certain drugs, brain tumors, brain infections, and stroke can cause psychosis?

Yes. Clinical evidence consistently demonstrates that various medical conditions, including substance use, brain tumors, central nervous system infections, and cerebrovascular events like strokes, can directly cause secondary psychosis.

Verdict: SUPPORTED · 4 sources for, 0 against · Last checked

The analysis

The claim states that alcohol, certain drugs, brain tumors, brain infections, and stroke can cause psychosis. Multiple retrieved clinical papers and case studies corroborate that secondary etiologies—such as substance/medication use (Paper 0), brain tumors (Paper 4), CNS infections (Papers 5 and 6), and cerebrovascular/stroke conditions (Paper 5)—frequently manifest with or directly cause psychotic symptoms. No papers refute this well-established medical phenomenon.

Evidence for · 4
Medical evaluation of first presentation of psychotic symptoms in children and adolescents.
2026
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O, L., E, G., A, G., T, M., S, F., A, A., S, F., N, B., & A, K. (2026). Medical evaluation of first presentation of psychotic symptoms in children and adolescents.. doi.org. https://doi.org/10.3389/fpsyt.2026.1678974

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More for · 3
Pseudohallucination and Pilocytic Astrocytoma in the Pons.
2026
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A, M., B, K., M, K., & W, B. (2026). Pseudohallucination and Pilocytic Astrocytoma in the Pons.. doi.org. https://doi.org/10.1002/brb3.71367

Clinical features, etiological spectrum, and outcomes of neurological patients initially presenting with psychiatric symptoms.
2026
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C, C., Y, X., Z, Z., Y, H., S, X., & T, C. (2026). Clinical features, etiological spectrum, and outcomes of neurological patients initially presenting with psychiatric symptoms.. doi.org. https://doi.org/10.3389/fneur.2026.1853336

Calcified frontal neurocysticercosis presenting with acute psychosis in a non-endemic context: a case report.
2026
Get citation
MS, A. & T, J. (2026). Calcified frontal neurocysticercosis presenting with acute psychosis in a non-endemic context: a case report.. doi.org. https://doi.org/10.3389/fpsyt.2026.1771798

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