Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas 317 | Nicole Rust on Why Neuroscience Hasn't Solved Brain Disorders
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Jun 9, 2025 
Nicole Rust, a Professor of Psychology at the University of Pennsylvania and a neuroscientist specializing in mood, visual recognition, and memory, discusses the complicated nature of the brain and its impact on understanding brain disorders. She explores why advancements in neuroscience haven't translated into effective treatments, emphasizing the need for innovative diagnostic tools and a compassionate view of neurodiversity. Rust also touches on the roles of genetics, the interplay of environment, and alternative therapies, including psychedelics, in addressing psychiatric challenges.
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Serendipity Shapes Brain Drugs
- Many brain disorder drugs were serendipitously discovered, like early antidepressants during tuberculosis trials.
- Drug refinements often happen after initial serendipitous findings rather than direct bench-to-bedside breakthroughs.
Insomnia Drug’s Decades-Long Story
- Discovery of orexin as wakefulness chemical led to drug suvorexant for insomnia after decades of research.
- This shows how sustained multi-decade academic and industry work leads to new treatments.
Treating Brain Disorders as Control Problems
- Brain disorders like depression require shifting brain states, a control problem in complex dynamical systems.
- Behavioral therapies are a form of reprogramming brain plasticity; drugs might enhance therapy effectiveness.
