When we fall asleep, our brains don’t just shut off; they get to work. One of their primary jobs is memory consolidation—sorting through the events of the day and filing them into long-term storage. The brain does this by spontaneously “reactivating” or replaying memories.
Recent memories are consolidated during sleep by spontaneous reactivation. However, whether and how memory reactivation affects sleep dynamics remain unclear. By tracking and modulating memory activity during sleep in mice, we revealed that negative memory reactivation promoted arousal, whereas positive memory supported sleep stability. This regulation was mediated by the reactivation of experience-specific hippocampus-amygdala engram circuits during sleep. In chronic stress models, negative memory reactivation promoted sleep disturbance, and targeted suppression of memory reactivation restored normal sleep. Our findings establish a memory-dependent sleep regulation in which memory reactivation engages downstream circuits responsive to specific memory content.
In the next few decades, many physicists are hopeful that nuclear fusion could become a realistic source of practically limitless energy. But before this can happen, it will be critical to ensure that reactors cannot be covertly misused to produce materials for nuclear weapons.
Through new analysis published in Physical Review Applied, a team led by Patrick Huber at Virginia Tech has shown that an existing type of particle detector could be used to flag any such misuse.
Delve into the fascinating world of organoid intelligence at XPANSE 2024 in Abu Dhabi. Presented by Dr. Thomas Hartung, Professor of Medical Microbiology at Johns Hopkins University, this session explores the cutting-edge research and potential of lab-grown organoids to revolutionize computing, medicine, and neuroscience.
XPANSE, the world’s first visioning of the future with exponential technologies, is an Abu Dhabi-based global initiative and an invitation-only forum for exponential technology. XPANSE 2024, hosted by ADQ, convened 3,000 world’s brightest minds, technology trailblazers, Nobel Laureates, industry leaders, CEOs, ministers and scientists to set the horizons of exponential technologies spanning quantum, genomics, exotic computing, embodied intelligence, next-gen 2D matter, AGI, Brain-Machine Interfaces, Future G and beyond.
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Hello and welcome! My name is Anton and in this video, we will talk about a few studies that explain how the human brain developed complexity. Links: https://linkinghub.elsevier.com/retri… Other videos: • Surprise Evidence That Gut Microbes Direct… • Mindblowing Discoveries About Bacteria Liv… • Direct Connection Between Gut Microbiome a… #brain #biology #evolution.
0:00 Discoveries about the evolution of the brain. 1:20 800 Million years ago… how it all began. 3:10 Did nervous system evolve multiple times? Comb jellies. 4:45 Big brains — primates vs octopuses. 9:20 Human brains and human intelligence genes. 11:20 Gut microbes and fuel for the brain. 12:20 Conclusions and implications.
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What is matter, really? Is matter an independent substance, or is reality fundamentally relational? In this episode, we explore some of the deepest questions in philosophy, metaphysics, and modern science, including Quantum Physics, Relativity, Quantum Field Theory, Dark Matter, Consciousness, Space, Time, Cosmology, and the Nature of Reality itself.
From atoms and particles to galaxies and the Universe, modern science increasingly points toward a world of processes, relationships, and dynamic structures rather than isolated objects. Could Matter and Consciousness be different expressions of the same underlying Reality? What can Systems Thinking, Complexity Theory, Nonduality, Taoism, Buddhism, and Vedanta contribute to our understanding of existence?
Let us examine the Nature of Matter, the mystery of Dark Matter, the meaning of Space-Time, and the interconnected fabric of the cosmos. This exploration may challenge the way you think about Reality, Existence, Consciousness, and your place within the Universe.
0:00 Intro. 0:55 A Necessary Correction of Attitude. 4:39 What is Matter? 8:09 Rethinking Properties. 10:34 An Important Question. 14:11 Redefining Matter. 17:43 Outro.
If you love my content, you can support me here: https://buymeacoffee.com/philosophydi… For inquiries: [email protected] ============================= 🎬Suggested videos for you: ▶️ • 3 Quantum Entanglement ▶️ • 2 Wave-Particle Duality ▶️ • 1 Observer Effect ▶️ • Food and Your Mind | How What You Eat Shap… ▶️ • Indian Vegetarian Cooking | How to Make De… ▶️ • Merry Christmas 🎄 ▶️ • 2 What does addiction feel like? ▶️ • Quickly cooking Chinese food😋 ▶️ • 1 Do we really need the “shortcut” to spi… ▶️ • 4 Re-understanding Manifestation ▶️ • 3 Re-understanding Matter ▶️ • 2 Re-understanding Energy ▶️ • 7 Where Does Existence Come From? Final An… ▶️ • 6 There was no “Creation” =================================.
In brief: A historical look into how brain computer interfaces have transformed over the past few decades: the landmark research of the past, the landmark research of today, and how it’s going to transform the future of XR. As a neuroscientist for about a decade, my work has focused on how people represent spatial contexts, concepts, and events. I have been able to place people in VR experiences and then through the use of neuroimaging and AI methods untangle their thoughts and how those thoughts influenced what they remember. As this neuroimaging technology reduces in form-factor and increases in accessibility, we can no longer turn a blind-eye to how it may be used nefariously in consumer products. In this talk, I will describe how Brain-computer interfaces (BCIs) have been defined over the years, how research in this field has catapulted, an overview of the neuroscience behind the technology, the landmark studies of the past and present, use-cases in which XR, robotics, prosthetics and BCI have intertwined, and how new AI models are being used to perform mind-reading of both language and mental images. “With great power comes great responsibility” – I will end the talk by describing how and what it means for the future of XR and why it’s important to be careful with this technology, but also how incredibly empowering it can be for the future of XR.
US Army scientists have demonstrated a new quantum sensor that can measure the full 3D direction of radio-frequency electromagnetic fields, a milestone that could reshape how signals are detected on the battlefield.
The breakthrough was achieved by scientists at the U.S. Army Combat Capabilities Development Command, known as DEVCOM, Army Research Laboratory.
According to the researchers, the sensor could improve situational awareness, strengthen secure communications, and help soldiers make faster, better-informed decisions in complex battlefield environments.
Scientists at Florida International University may have found a way to make a powerful cancer treatment work even better. The treatment, called CAR-T therapy, uses a patient’s own immune cells to fight cancer. Doctors remove special immune cells called T-cells from the body, genetically change them in a lab so they can recognize cancer, and then put them back into the patient to attack tumors. The therapy has already helped many people with serious blood cancers such as lymphoma and leukemia.
But there is still a problem: Cancer fights back. Tumors create a protective environment around themselves that can weaken or shut down immune cells before they finish destroying the cancer. In many cases, CAR-T cells do not survive long enough to completely wipe out the disease.
Now, FIU researchers say they may have found a way to help.
Just 90–120 minutes of strength training a week may deliver some of the biggest long-term health rewards, according to a study tracking more than 147,000 people for 30 years. That amount was linked to lower risks of death overall, particularly from cardiovascular and neurological diseases. Combining strength workouts with aerobic exercise produced even stronger benefits.
