Study connects late-life psychosis to abnormal tau protein buildup

https://www.news-medical.net/news/20260804/Study-connects-late-life-psychosis-to-abnormal-tau-protein-buildup.aspx Hallucinations and delusions that appear for the first time in midlife or later are often treated as psychiatric symptoms whose biological cause is unclear. The study, published online in Molecular Psychiatry on August 2, 2026, suggests that, for many patients, these symptoms may be linked to brain changes also seen in dementia.