Summary: A new study has found that delusions typically emerge before hallucinations in individuals at high risk for psychosis, overturning a long-standing belief that hallucinations drive delusional thinking. By analyzing symptom progression across three large cohorts, researchers consistently observed that delusions were the earliest symptom, reappearing even before hallucinations during relapses.
The study suggests that disruptions in how the brain processes prediction errors may underlie delusions, with hallucinations emerging as a secondary effect. These insights may lead to earlier intervention strategies and better prevention of full-blown psychotic disorders.
Key Facts:
- Symptom Onset: Delusions often appear before hallucinations in early psychosis.
- Predictive Processing: Psychosis may stem from the brain…