#Neuron

The brain’s 86 billion neurons make it one of science’s hardest puzzles, so the tools we use matter. NINDS’s Dr. Amy Bany Adams and Dr. Amir Tamiz explore New Approach Methodologies (NAMs) and how new and established methods work better together:

“In the 2030s and 2040s, nanobots will swim in our bloodstream, performing medical tasks with precision.” “They will go into our brains non-invasively and provide wireless communication between our neocortex and digital neurons in the cloud.”

This study analyzed nuclear tau epitopes in neuroblastoma cells and post-mortem hippocampal CA1 neurons. AT8 reduction during ageing and AD correlated with nuclear stress, aberrant cell cycle activity, and neuronal vulnerability 🧠📊 #Alzheimers #Tau

Hippocampal neurons use related but distinct codes to represent self, others, and gaze

This is how the neurons in your brain look when you learn something new. Isn't it amazing?!

This Is What Happens Inside Your Brain When You Learn Something New! 🧠✨ Neurons communicate through intricate networks, and learning can strengthen or reshape their connections. Isn't the human brain incredible?

Hypothesis: One of the biggest fallacies in computational neuroscience and neuro-engineering is treating neurons as mere input-output machines. Intrinsic cell behavior has causal significance.

Using DISCO clearing, a recent Nature paper investigates why prior adversity makes the next stressor hit harder. Zachary Pennington, @denisejcai and colleagues used unbiased whole-brain activity mapping across more than 450 mouse brain regions to identify the anterior hypothalamic nucleus (AHN) as a key region involved in stress sensitization. Miniscope imaging showed that previous stress recruited more AHN neurons responsive to negative experiences. Circuit experiments then showed that silencing amygdala→AHN inputs prevented the heightened defensive response to a later stressor, linking the brain-wide map to a causal pathway in mice.

This is how the neurons in your brain look when you learn something new. Isn't it amazing?!

🧠 Silence May Help Your Brain Grow New Neurons. What happens inside your brain when everything goes quiet? Scientists found something fascinating in a mouse study. Researchers discovered that two hours of daily silence stimulated neural precursor cells in the hippocampus, a brain region important for learning and memory. Even more interesting, silence was associated with the formation of more new immature neurons. Could quiet moments actually support brain health? Researchers still need to determine whether the same effect happens in humans. For now, the findings offer a fascinating reason to appreciate a little peace and quiet. Source: Kirste, I., Nicola, Z., Kronenberg, G., Walker, T. L., Liu, R. C., & Kempermann, G. (2015). Is silence golden? Effects of auditory stimuli and their absence on adult hippocampal neurogenesis. Brain Structure and Function, 220(2), 1221–1228.

Scientists removed the brain's immune cells from aging mice and let them regenerate. Spatial memory improved. A key learning mechanism was restored. Same neurons. Different immune cells. What if cognitive aging is partly about the environment surrounding our neurons?

ELON MUSK EXPLAINS WHY YOU ARE YOUR BRAIN Elon Musk says you can get a heart transplant or a kidney transplant. But no one has ever gotten a brain transplant. He explains that you are your brain. When he speaks, it is just neurons firing in his brain that create the words you hear. Those same neurons then fire in your brain too. All your experiences and understanding of the world come from trillions of synapses firing inside your brain.

On-chain governance that actually runs the network! 🏛️ The NNS lets $ICP holders vote on upgrades that execute automatically, and the way @dfinity's neurons earn rewards is the key part. Get the details:

PhDone! After years researching the capabilities of single neurons, I gave my PhD presentation and submitted my thesis! Now a postdoc, going from single neurons with dendrites to networks with dendrites. Open to research opportunities in academia & industry. Let's connect!

I believe the cause of ALS is most frequently physical trauma to a nerve/ nerves that propagate damage and eventually destroy all motor neurons. Given my unique position knowing more people with ALS and hearing their stories, I started developing this theory within the past year or two. Anytime I bring it up with a medical professional or someone with a loved one who has ALS, they always say the same thing: "It's possible, but no one knows for sure." Then this story is what solidified my thinking- this video and the first post in the thread align with my theory. This is such a horrible disease. Hopefully SI will find a cure soon.

@GMA Chris Johnson reflects on DRIVE-BY accident

Before an AI learns anything, someone has to decide how it’s built. 
How many neurons. How they connect. What rules they follow. 
So who designs the brain? 
NIA Vol. 14 is live. 🧵

It’s officially November with winter right around the corner.... Like me, you’ve probably seen these and been just as fascinated by them, especially in that year after year, these branchin shapes appear in ice, looking remarkably like neurons. Love that @neurovium has developed a mathematical model exploring this resemblance and what makes a living neuron different. His model shows how feedback between neuronal activity and the surrounding electric field can help signals persist, even without changing the branching shape. Check it out here:

Neurons and glia etched into a pond. #brainfreeze #StonehamMA

Ranked up to Silver on Neurons with 354 Neurons. Holding MDG on @MindGames_AI.

"...all of the major categories of psychiatric drugs are neurotoxic. They poison neurons, and sometimes destroy them." - Dr Peter Breggin "The nervous system is particularly sensitive to dysfunction caused by chemical toxicity." - Dr Raymond Singer Peter Breggin ⬇️

A microscopic view of neurons forming a connection, showing an axon extending its growth cone to bridge the gap and link with another cell.