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High-resolution imaging method details nerves across a mouse’s body

news.ycombinator.com Lenharo 2025-07-23 23:14:51

The cranial nerves (blue) and blood vessels (red) in the head of a mouse are revealed by a high-resolution imaging technique. Credit: M.-Y. Shi et al./Cell (CC-BY-4.0) A speedy imaging method can map the nerves running from a mouse’s brain and spinal cord to the rest of its body at micrometre-scale resolution, revealing details such as individual fibres travelling from a key nerve to distant organs1. Previous efforts have mapped the network of connections between nerve cells, known as the conn

Topics: body brain cell mouse nerves

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New Study Flips Everything We Know About Addiction Upside Down

futurism.com Unknown 2025-07-30 08:05:30

Since the 1970s, countless experts and the US government have sold the public a simple explanation for drug addiction, now clinically called substance abuse disorder: the myth of the gateway drug. The gateway drug — usually cast as weed, alcohol, tobacco, or inhalants — refers to the theory that the earlier a kid starts using drugs, the more likely they are to get into the harder stuff later in life, like heroin or cocaine. Though the idea was pioneered as early as the 1930s, the policy term wa

Topics: brain drug drugs gateway theory

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Scientists Succeed in Reversing Parkinson’s Symptoms in Mice

wired.com Fernanda González 2025-08-03 09:30:00

Cases of Parkinson’s disease have doubled in the last 25 years, according to figures from the World Health Organization. For decades, the scientists have investigated what triggers this disorder to mitigate its symptoms and anticipate its onset. Now, a series of experimental therapies are laying the groundwork for potentially reversing the condition, which affects nearly 10 million people worldwide and can generate costs of approximately $10,000 per patient per year, when considering direct and

Topics: brain copper mice parkinson sod1

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As AI use expands, platforms like Brain Max seek to simplify cross-app integration

venturebeat.com Emilia David 2025-08-06 08:03:27

Want smarter insights in your inbox? Sign up for our weekly newsletters to get only what matters to enterprise AI, data, and security leaders. Subscribe Now As more companies choose to bring generative AI tools into their workflows, the number of AI applications they need to connect to their stack increases. An emerging trend brings more visibility into all these applications in one place, allowing enterprises to query, search, and monitor their data and AI applications without needing to open

Topics: applications brain clickup max said

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Do You Really Learn When You Use AI? What MIT Researchers Found

cnet.com See Full Bio 2025-08-10 00:00:06

Your brain works differently when you're using generative AI for a task than when you use your brain alone. Namely, you're less likely to remember what you did. That's the somewhat obvious-sounding conclusion of an MIT study that looked at how people think when they write an essay -- one of the earliest scientific studies of how using gen AI affects us. The study, a preprint that has not yet been peer-reviewed, is pretty small (54 participants) and preliminary, but it points toward the need for

Topics: ai brain said study writing

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Is It Cake? How Our Brain Deciphers Materials

news.ycombinator.com Dale Markowitz 2025-08-07 19:43:57

One of the greatest questions of the modern age is: Is it cake? As in: Is it an espresso machine, or cake? Paint can, or cake? Air fryer, or …? Millions of viewers have watched rapt as TikTok bakers slice or bite into inedible-looking objects with fluffy, frosting-filled innards … or have tuned into Is It Cake?, the aptly named Netflix show. Why? As a form of entertainment, this kind of visual trick is hardly new. For centuries, artists have delighted in fooling us into thinking one material is

Topics: brain material materials paper perception

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New Research Debunks Myth That Brain Cells Stop Growing After Childhood

gizmodo.com Ed Cara 2025-08-13 09:00:50

You’ve probably heard the old canard that new brain cells simply stop forming as we become adults. But research out today is the latest to show that this isn’t really true. Scientists in Sweden led the study, published Thursday in Science. They found abundant signs of neural stem cells growing in the hippocampus of adult brains. The findings reveal more about the human brain as we get older, the researchers say, and also hint at potential new ways to treat neurological disorders. “We’ve found

Topics: adult brain cells neurogenesis new

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A proof-of-concept neural brain implant providing speech

news.ycombinator.com Unknown 2025-08-14 03:16:14

Stephen Hawking, a British physicist and arguably the most famous man suffering from amyotrophic lateral sclerosis (ALS), communicated with the world using a sensor installed in his glasses. That sensor used tiny movements of a single muscle in his cheek to select characters on a screen. Once he typed a full sentence at a rate of roughly one word per minute, the text was synthesized into speech by a DECtalk TC01 synthesizer, which gave him his iconic, robotic voice. But a lot has changed since

Topics: brain davis speech text words

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What Happens to Your Brain When You Use ChatGPT? Scientists Took a Look

cnet.com See Full Bio 2025-08-17 01:02:47

Your brain works differently when you're using generative AI to complete a task than it does when you use your brain alone. Namely, you're less likely to remember what you did. That's the somewhat obvious-sounding conclusion of an MIT study that looked at how people think when they write an essay -- one of the earliest scientific studies of how using gen AI affects us. The study, a preprint that has not yet been peer-reviewed, is pretty small (54 participants) and preliminary, but it points tow

Topics: ai brain said study writing

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This Survey Asked Neuroscientists If Memories Can Be Extracted From the Dead. Here’s What They Said

gizmodo.com Natalia Mesa 2025-08-19 21:20:54

The allure and terror of transferring your consciousness to a computer has long been fodder for cyberpunk novels and billionaire-backed immortality startups. But a substantial chunk of neuroscientists think it might be possible to extract memories from a preserved brain and store those memories inside a computer, according to a new study. The study, published in the journal PLOS One, suggests that most neuroscientists believe that memory has a physical basis and, on average, give a 40% probabil

Topics: brain memories memory neuroscientists study

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The Download: meet RFK Jr’s right-hand man, and inside OpenAI

technologyreview.com Rhiannon Williams 2025-08-20 23:10:00

The must-reads I’ve combed the internet to find you today’s most fun/important/scary/fascinating stories about technology. 1 Donald Trump claims to have found buyers for TikTok But will China agree to sell to them? That’s the real hurdle. (FT $) + They have between now and the September 17 deadline to thrash it all out. (CNBC) 2 The Trump administration is becoming even more secretive Staff are being instructed to avoid leaving a paper trial at all costs. (WP $) 3 Canada has rescinded

Topics: ai brain canada tax technology

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Startling Percentage of Neuroscientists Say We Could Extract Memories From Dead Brains

futurism.com Unknown 2025-08-20 02:45:16

Image by Getty Images Studies When you die, your memories die with you, never to be experienced again. Or at least, that's always been how the case. Now, though, in an exercise to assess shifting scientific consensus, a cohort of 312 neuroscientists were quizzed by researchers on whether memories might live on in the structure of deceased brains. And a surprisingly larger number — 70.7 percent of the group — believe they may, findings which were newly published in the science journal PLOS One.

Topics: brain memories neuroscientists science scientists

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Scientists Intrigued to Discover That Human Brains Are Glowing Faintly

futurism.com Unknown 2025-08-21 11:00:19

Image by Getty / Futurim Developments Scientists have some exciting news: your brain is likely glowing, whether you can see it or not. The news comes from researchers at Algoma University in Ontario, who found evidence that the human brain, of all things, possesses luminescent properties. Essentially, they found that as the brain metabolizes energy, it releases super-faint traces of visible light. Called ultra-weak photon emissions (UPEs), the flashes of light are emitted when electrons break

Topics: brain energy light researchers upes

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A neural brain implant provides near instantaneous speech

arstechnica.com Unknown 2025-08-21 09:00:58

Stephen Hawking, a British physicist and arguably the most famous man suffering from amyotrophic lateral sclerosis (ALS), communicated with the world using a sensor installed in his glasses. That sensor used tiny movements of a single muscle in his cheek to select characters on a screen. Once he typed a full sentence at a rate of roughly one word per minute, the text was synthesized into speech by a DECtalk TC01 synthesizer, which gave him his iconic, robotic voice. But a lot has changed since

Topics: brain davis speech text words

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I deleted my second brain

news.ycombinator.com Joan Westenberg 2025-08-21 04:27:29

Two nights ago, I deleted everything. Every note in Obsidian. Every half-baked atomic thought, every Zettelkasten slip, every carefully linked concept map. I deleted every Apple Note I’d synced since 2015. Every quote I’d ever highlighted. Every to-do list from every productivity system I’d ever borrowed, broken, or bastardized. Gone. Erased in seconds. What followed: Relief. And a comforting silence where the noise used to be. For years, I had been building what technologists and lifehacker

Topics: brain like memory old want

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E.A. Spitzka's Studies of Exceptional and Deviant Brains (2024)

news.ycombinator.com Unknown 2025-08-22 10:11:30

The younger Spitzka’s career flourished after he took a position at Thomas Jefferson University in Philadelphia, where he gained recognition for his studies on the relationship between brain structures and behavior. His particular interest lay in the extremes of human nature—both pathological and extraordinary—and he sought to understand the physiology behind deviance and brilliance. In addition to his academic pursuits, Spitzka served as the editor of the 1910 edition of Gray’s Anatomy, one of

Topics: american brain collection huntington spitzka

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The first non-opoid painkiller

news.ycombinator.com Michelle Ma 2025-08-26 00:16:53

In the nineteenth century, the invention of anesthesia was considered a gift from God. But post-operative pain relief has continued to rely on opioids, derivatives of opium, the addictive substance employed since ancient times. Although no other drug has managed to match the rapid, potent, and broadly effective relief delivered by opioids, their side effects have led to decades of addiction and overdose, leaving researchers keen to find a better solution. This all changed in January 2025, when

Topics: brain nav1 opioid opioids pain

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Newborns have elevated levels of a biomarker for Alzheimer's

news.ycombinator.com University Of Gothenburg 2025-08-30 05:30:37

This article has been reviewed according to Science X's editorial process and policies . Editors have highlighted the following attributes while ensuring the content's credibility: Credit: Brain Communications (2025). DOI: 10.1093/braincomms/fcaf221 Newborn babies and patients with Alzheimer's disease share an unexpected biological trait: elevated levels of a well-known biomarker for Alzheimer's, as shown in a study led by researchers at the University of Gothenburg and published in Brain Comm

Topics: alzheimer brain levels newborns tau217

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Real-world performance comparison of ebtree/cebtree/rbtree

news.ycombinator.com Willy Tarreau 2025-09-01 14:07:29

Brain dumps. Reports about experiments, ideas, and various stuff that's more useful on the net than written on paper stacked on my desk.

Topics: brain desk dumps experiments ideas

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Researchers Scanned the Brains of ChatGPT Users and Found Something Deeply Alarming

futurism.com Unknown 2025-09-02 20:19:58

Image by Getty / Futurism Studies Scientists at the Massachusetts Institute of Technology have found some startling results in the brain scans of ChatGPT users, adding to the growing body of evidence suggesting that AI is having a serious — and barely-understood — impact on its users' cognition even as it explodes in popularity worldwide. In a new paper currently awaiting peer review, researchers from the school's storied Media Lab documented the vast differences between the brain activity of

Topics: brain chatbot chatgpt group users

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MIT brain scans suggest that using GenAI tools reduces cognitive activity

techspot.com Daniel Sims 2025-09-04 01:20:00

Why it matters: As the use of generative AI becomes increasingly common in education, law, politics, media, and other fields, many worry that reliance on the technology may reduce cognitive independence. A recent study from MIT strongly supports this concern, indicating that the use of digital tools significantly alters brain activity. The newly published paper explains that as participants in an experiment wrote a series of essays, electronic brain monitoring revealed substantially weaker conn

Topics: brain group llm participants use

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Scientists Scanned the Brains of Hardcore Gooners and Found Something Ominous

futurism.com Unknown 2025-09-05 04:45:42

Image by Getty / Futurism Neuroscience/Brain Science Watching a whole bunch of smut has some major side effects — and no, we're not just talking about stained bedsheets. In a new study published in the journal Frontiers in Human Neuroscience, researchers at the Chengdu Medical College in China found that people who watch a lot of pornography had lower cognitive performance and showed signs of neurological arousal akin to opioid addiction. It's new data in a swirling debate over whether watchi

Topics: addiction brain porn study watchers

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Brain activity much lower when using AI chatbots, MIT boffins find

news.ycombinator.com Brandon Vigliarolo 2025-09-06 00:43:58

Using AI chatbots actually reduces activity in the brain versus accomplishing the same tasks unaided, and may lead to poorer fact retention, according to a new preprint study out of MIT. Seeking to understand how the use of LLM chatbots affects the brain, a team led by MIT Media Lab research scientist Dr. Nataliya Kosmyna hooked up a group of Boston-area college students to electroencephalogram (EEG) headsets and gave them 20 minutes to write a short essay. One group was directed to write witho

Topics: ai brain group llm research

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The Grug Brained Developer (2022)

news.ycombinator.com Unknown 2025-09-09 09:24:36

The Grug Brained Developer A layman's guide to thinking like the self-aware smol brained Introduction this collection of thoughts on software development gathered by grug brain developer grug brain developer not so smart, but grug brain developer program many long year and learn some things although mostly still confused grug brain developer try collect learns into small, easily digestible and funny page, not only for you, the young grug, but also for him because as grug brain developer get

Topics: big brain code good grug

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Cyborg Embryos Offer New Insights into Brain Growth

news.ycombinator.com Charles Q. Choi 2025-09-09 19:11:17

Scientists have created cyborg embryos by implanting electrode arrays into the developing brains of frogs, mice, and salamanders. Although the researchers reject implants in human embryos as unethical, they suggest their technology might one day help study and treat neurodevelopmental conditions in children. The stretchable technology at the core of the electrode arrays could record brain activity while remaining soft enough to accommodate the children’s growth. Recording the activity of neuron

Topics: activity brain development embryos liu

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Climate Disasters Hit the Brain Before Babies Are Even Born, Study Suggests

gizmodo.com Kate Yoder 2025-09-13 05:00:55

When Superstorm Sandy made a beeline for New York City in October 2012, it flooded huge swaths of downtown Manhattan, leaving 2 million people without electricity and heat and damaging tens of thousands of homes. The storm followed a sweltering summer in New York City, with a procession of heat waves nearing 100 degrees. For those who were pregnant at the time, enduring these extreme conditions wasn’t just uncomfortable—it may have left a lasting imprint on their children’s brains. That’s accor

Topics: brain climate heat said study

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Why does my ripped CD have messed up track names? And why is one track missing?

news.ycombinator.com Unknown 2025-09-15 15:03:52

A delve into CD ripping and metadata As of late, I've been getting into growing my music collection by buying and ripping CDs. That was all fine and dandy until I discovered that one of my albums, Echo Afternoon by Finish Ticket, was slightly off. On the left, the artist's Bandcamp page. On the right, my ripped files in VLC. There are three problems here: One track has changed name - Raincloud has turned into "Rainclous". Nothing Coming Soon should be 41 seconds long, but is instead 4 minute

Topics: cd disk id musicbrainz track

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Why Does My Ripped CD Have Messed Up Track Names? and Why Is One Track Missing?

news.ycombinator.com Unknown 2025-09-16 16:03:52

A delve into CD ripping and metadata As of late, I've been getting into growing my music collection by buying and ripping CDs. That was all fine and dandy until I discovered that one of my albums, Echo Afternoon by Finish Ticket, was slightly off. On the left, the artist's Bandcamp page. On the right, my ripped files in VLC. There are three problems here: One track has changed name - Raincloud has turned into "Rainclous". Nothing Coming Soon should be 41 seconds long, but is instead 4 minute

Topics: cd disk id musicbrainz track

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Dancing brainwaves: How sound reshapes your brain networks in real time

news.ycombinator.com Unknown 2025-09-13 18:47:44

What happens inside your brain when you hear a steady rhythm or musical tone? According to a new study from Aarhus University and the University of Oxford, your brain doesn't just hear it -- it reorganizes itself in real time. Every beep, tone and new sound you hear travels from the ear to registering in your brain. But what actually happens in your brain when you listen to a continuous stream of sounds? A new study from Aarhus University and University of Oxford published in Advanced Science r

Topics: brain frequency ness oxford university

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Latest Tech News

High-resolution imaging method details nerves across a mouse’s body

New Study Flips Everything We Know About Addiction Upside Down

Scientists Succeed in Reversing Parkinson’s Symptoms in Mice

As AI use expands, platforms like Brain Max seek to simplify cross-app integration

Do You Really Learn When You Use AI? What MIT Researchers Found

Is It Cake? How Our Brain Deciphers Materials

New Research Debunks Myth That Brain Cells Stop Growing After Childhood

A proof-of-concept neural brain implant providing speech

What Happens to Your Brain When You Use ChatGPT? Scientists Took a Look

This Survey Asked Neuroscientists If Memories Can Be Extracted From the Dead. Here’s What They Said

The Download: meet RFK Jr’s right-hand man, and inside OpenAI

Startling Percentage of Neuroscientists Say We Could Extract Memories From Dead Brains

Scientists Intrigued to Discover That Human Brains Are Glowing Faintly

A neural brain implant provides near instantaneous speech

I deleted my second brain

E.A. Spitzka's Studies of Exceptional and Deviant Brains (2024)

The first non-opoid painkiller

Newborns have elevated levels of a biomarker for Alzheimer's

Real-world performance comparison of ebtree/cebtree/rbtree

Researchers Scanned the Brains of ChatGPT Users and Found Something Deeply Alarming

MIT brain scans suggest that using GenAI tools reduces cognitive activity

Scientists Scanned the Brains of Hardcore Gooners and Found Something Ominous

Brain activity much lower when using AI chatbots, MIT boffins find

The Grug Brained Developer (2022)

Cyborg Embryos Offer New Insights into Brain Growth

Climate Disasters Hit the Brain Before Babies Are Even Born, Study Suggests

Why does my ripped CD have messed up track names? And why is one track missing?

Why Does My Ripped CD Have Messed Up Track Names? and Why Is One Track Missing?

Dancing brainwaves: How sound reshapes your brain networks in real time

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