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Hi-Tech Electrical Probes Reveal Visual Information Flow Mirrors Structural Organization


Hi-Tech Electrical Probes Reveal Visual Information Flow Mirrors Structural Organization
January 25, 2021
Using high-resolution Neuropixels silicon probes thinner than a human hair, scientists at the Allen Institute for Brain Science have captured hundreds of split-second electrical signals that fire when an animal is interpreting what it sees. Analyzing the data collected reveals that functional connectivity between different areas mirrors the complex structural hierarchy in the visual system and provides key insights on how signals propagate along the organizational layers of the visual system.
High-resolution Neuropixels silicon probes. [Allen Institue]
“Historically, people have studied one brain region at a time, but the brain doesn’t mediate behavior and cognition with just one area alone,” says Shawn Olsen, PhD, Associate Investigator. “We’re learning that the brain operates through the interaction of areas and signals sent from one area to another ....

Josh Siegle , Allen Institute Mindscope Program , Allen Institute For Brain Science , Allen Institute , Brain Science , Assistant Investigator , Allen Mouse Brain Connectivity Atlas , ஜோஷ் சிகிலே , ஆலன் நிறுவனம் க்கு மூளை அறிவியல் , ஆலன் நிறுவனம் , மூளை அறிவியல் , உதவியாளர் புலனாய்வாளர் , ஆலன் சுட்டி மூளை இணைப்பு அட்லஸ் ,

Tiny high-tech probes reveal how information flows across the brain


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IMAGE: A new study from researchers at the Allen Institute collected and analyzed the largest single dataset of neurons electrical activity to glean principles of how we perceive the visual world.
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Credit: Allen Institute
A new study from researchers at the Allen Institute collected and analyzed the largest single dataset of neurons electrical activity to glean principles of how we perceive the visual world around us. The study, published Wednesday in the journal
Nature, captures the hundreds of split-second electrical signals that fire when an animal is interpreting what it sees.
Your brain processes the world around you nearly instantaneously, but there are numerous lightning-fast steps between light hitting your retinas and the point at which you become aware of what s in front of you. Humans have three dozen different brain areas responsible for understanding the visual world, and scientists still don t know many of the de ....

Shawn Olsen , Josh Siegle , Christof Koch , Xiaoxuan Jia , Allen Institute , Allen Institute Mindscope Program , Assistant Investigator , Senior Scientist , Associate Investigator , Chief Scientist , Allen Mouse Brain Connectivity Atlas , Medicine Health , ஷான் ஓல்‌ஸெந் , ஜோஷ் சிகிலே , ஆலன் நிறுவனம் , உதவியாளர் புலனாய்வாளர் , மூத்தவர் விஞ்ஞானி , இணை புலனாய்வாளர் , தலைமை விஞ்ஞானி , ஆலன் சுட்டி மூளை இணைப்பு அட்லஸ் , மருந்து ஆரோக்கியம் ,