Your Brain's Logic & Function | Dr. David Berson

About this video

Dr. David Berson, a professor at Brown University, joins Huberman to explain the logic and organisation of the nervous system, moving layer by layer from the periphery deep into the brain. Huberman credits Dr. Berson’s laboratory with discovering the intrinsically photosensitive melanopsin cells in the eye that set circadian rhythms and inform the brain and body about time of day. They discuss how perceptions become motor action. Dr. Berson explains that animals stabilise the image of the world on the retina as much as possible, making quick movements then resting stable, which is why pigeons bob their heads and chickens hold their heads still when moved. On motion sickness, Dr. Berson describes visual-vestibular conflict: when vision and the balance system disagree about movement, such as looking at a phone in a moving car, nausea results, while looking out the front windshield reduces the mismatch.

Key takeaways

• Dr. Berson is credited by Huberman with discovering the eye cells that set circadian rhythms.
• Dr. Berson explains animals stabilise retinal images with quick movements followed by stability.
• Dr. Berson describes motion sickness as a visual-vestibular conflict between sensory systems.
• Dr. Berson uses pigeon head bobbing as an example of keeping the visual world stable.
• Huberman presents Dr. Berson’s framework as organising circuits from sensation to action.

Episode details: published December 13, 2021 · 281.6K views · 1:52:48 long. Summary written by Self Growth Videos from the episode itself. The science and protocols described are Andrew Huberman’s, presented for education — not medical advice. Consult a qualified professional before changing your own health practices.

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