An Occurrence of Mass Psychogenic Illness: LeRoy, New York.
McVige J; Masset L; Mechtler L; Rooney M; Eugeni P; Kaur-Spencer D; Trzcinski A; Niu Z · 2026 · Journal of child neurology
WASTE classifies this as Negative / Null Result Report · AI classification, approximate
The study found no significant effect — useful as a negative control or null benchmark for your own design.
Abstract (excerpt)
Mass psychogenic illness (MPI), also known as mass sociogenic illness, is a functional neurologic symptom disorder affecting multiple people simultaneously. This study presents a pediatric MPI outbreak involving abrupt-onset tics in LeRoy,…
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Metadata source: Europe PMC · DOI 10.1177/08830738251369759