Show notes
A letter landed on Masud Husain’s desk about a man in his thirties who had stopped doing anything at all.
Dr. Masud Husain is a clinical neurologist, neuroscientist, and Professor of Neurology and Cognitive Neuroscience at the University of Oxford. He is Editor-in-Chief of the journal Brain and author of Our Brains, Our Selves, winner of the 2025 Royal Society Trivedi Science Book Prize.
The letter was about a man named David who had been highly productive, worked in finance, and was charming company. Then he lost his job, stopped showering, and could not be bothered to claim the benefits that would have covered his rent. Asked why he no longer listened to music, he said it would take five minutes to connect the cables.
David was not depressed. He had suffered two tiny strokes in the basal ganglia, structures deep in the brain that help link motivational cues to action. Nothing was worth the effort to him anymore.
After an initial treatment failed, Masud’s team tried another drug that acts on the dopamine system. Three months later David came back with a haircut, a suit, a new job, and a new girlfriend.
Addiction researchers had arrived at that same circuit from the other direction: Masud says it is the circuit hijacked by almost every drug of addiction. He and Mike get into what that overlap means about the science of motivation, why apathy and depression are different conditions, why there are more than 200 causes of dementia and what that means for prevention, and whether there is a self to be found in the brain at all.
This is a conversation for anyone who has decided to do something and then not done it. Masud frames motivation as a calculation of whether the reward is worth the effort, and the lever most of us have is the size of the effort.
After thirty years of seeing patients, the thing Masud says he has learned is that the self is not set in stone. You can change.
Enjoy the conversation.
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Links & Resources:
Dr. Masud Husain’s Website: masudhusain.org
Dr. Masud Husain’s Books: Our Brains, Our Selves: What a Neurologist’s Patients Taught Him About the Brain, Oxford Textbook of Cognitive Neurology and Dementia (co-editor)
Dr. Masud Husain’s Journal: Brain, where he is Editor-in-Chief
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