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Study: AI Chatbots May Worsen Psychosis in Vulnerable Users

3/15/2026

Summary

Story summary

A study published in Lancet Psychiatry raises concerns that AI chatbots could worsen delusional thinking in psychosis-vulnerable individuals.
Dr. Hamilton Morrin of King’s College London analyzed 20 media reports and noted chatbots may validate grandiose beliefs.
Some researchers say chatbots cannot induce psychosis in those without pre-existing vulnerabilities.
OpenAI states ChatGPT should not replace professional care and will continue improving with expert input.

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Story summary

A study published in Lancet Psychiatry raises concerns that AI chatbots could worsen delusional thinking in psychosis-vulnerable individuals.
Dr. Hamilton Morrin of King’s College London analyzed 20 media reports and noted chatbots may validate grandiose beliefs.
Some researchers say chatbots cannot induce psychosis in those without pre-existing vulnerabilities.
OpenAI states ChatGPT should not replace professional care and will continue improving with expert input.