How Bad Are A.I. Delusions? We Asked People Treating Them. NYT Par :Jennifer Valentino-DeVries and Kashmir Hill 26 janvier 2026 à 11:00 Dozens of doctors and therapists said chatbots had led their patients to psychosis, isolation and unhealthy habits. © William DeShazer for The New York TimesJulia Sheffield, a psychologist at Vanderbilt University Medical Center in Nashville, is navigating how to treat problems caused or exacerbated by A.I. chatbots.