by michaelhalassa | Mar 16, 2026 | ADHD medication and psychosis, Algorithmic psychiatry, Chronic stimulant use, Cobenfy, Computational psychiatry, Distributed neural systems, Dopamine and psychosis, Executive Control, Reward-seeking systems, Schizophrenia, Stimulant side effects, Stimulant-induced psychosis
When I wrote about Stephanie earlier this summer, the 58-year-old executive who kept photographing “dimensional breach points” in her neighbors’ basements, I discussed the potential relationship to her long-term use of prescription stimulant...
by michaelhalassa | Jul 10, 2025 | Computational psychiatry, Executive Control, Michael Halassa, Reinforcement learning, Schizophrenia
As a psychiatrist who treats patients with schizophrenia, I’ve long been struck by a fundamental puzzle: why do individuals with psychosis hold onto beliefs with such unwavering certainty, even when presented with compelling contradictory evidence? The answer,...
by | Apr 1, 2025 | Distributed neural systems, Executive Control, Predictive coding, Predictive systems, Psychosis and mania, Reinforcement learning, Reward-seeking systems, Uncategorized
Introduction: The iPhone Analogy Imagine your brain as an iPhone. In a healthy state, all your apps—email, maps, music, social media—run smoothly, even if they occasionally compete for resources. For example, your email app might want to check for new messages while...
