🧠 New research suggests spontaneous laughter involves different brain networks than voluntary laughter.

💡 Studies on epilepsy patients undergoing brain surgery provided insights into the neural mechanisms of uncontrolled laughter triggered by electrical stimulation.

🧠 Spontaneous laughter appears linked to brain areas controlling motor function and emotions, potentially impacting mood and pain regulation.

🔬 Voluntary laughter, used in conversation, seems tied to distinct motor control regions and doesn't affect mood in the same way.

#Neuroscience #Laughter #BrainResearch

🧠 UQ researchers found evidence that tiny cellular structures called vaults, known for nearly 40 years, may be crucial for brain memory formation.

🚀 These barrel-shaped complexes, described as "miniature spaceships," appear to act as transport vehicles within neurons, carrying RNA.

💡 The study suggests a specific RNA molecule, Vaultrc5, helps coordinate vault movement and their cargo, potentially linking vaults to memory.

🔬 When Vaultrc5 levels were reduced, vaults shifted from carrying RNA for brain plasticity to RNA for immune surveillance, highlighting their regulatory role.

#Neuroscience #BrainResearch #ScienceNews

Inhibiting a stress protein prevents the consequences of childhood trauma: The effects on the brain and social behavior might one day be reversible

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#ChildhoodTrauma #BrainResearch #SocialBehavior

🧠 High-resolution MRI shows the visual cortex of blind individuals is thicker due to reduced myelination, altering the gray and white matter boundary.

🧠 The visual cortex in blind people isn't impaired; it reorganizes to handle functions like language processing and working memory.

🧠 This structural difference is linked to the absence of visual input, as similar changes were not seen in auditory or touch-related brain areas.

#Neuroscience #BrainResearch #ScienceNews

🧠 New UC Davis research suggests adolescent brain activity when viewing emotional faces predicts future social health.

📈 High amygdala activity in response to faces indicated more peer involvement for girls but less for boys two years later.

🔬 The amygdala, known for emotional responses and face processing, was the sole brain region found to predict social health outcomes.

#Neuroscience #AdolescentHealth #BrainResearch

Brain autopsy reveals Alzheimer’s drug only clears some brain regions

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#Alzheimers #BrainResearch #Neuroscience

🧠 Researchers at the Chinese University of Hong Kong identified neural differences in 101 adult Mandarin-speakers that explain why some learn languages faster than others.

🧠 Stronger activity in the dorsal attention network and frontoparietal network, crucial for attention, goal-directed behavior, problem-solving, and memory, was linked to better language learning outcomes.

🧠 The study, published in The Journal of Neuroscience, suggests that in the initial stages of learning, variations in these large-scale brain networks are key to individual differences in language acquisition speed.

#Neuroscience #LanguageLearning #BrainResearch

🧠 Three anesthetic drugs shut down awareness by different routes, all converging on a shared signature in brain's electrical activity: slow, heavy waves rolling through the cortex, causing different parts to fall out of sync.

🧠 Researchers at MIT's Picower Institute propose that brain waves, not just neural connections, are crucial for thinking. They argue that these waves "push" neurons, and this push is as vital as the wiring.

🧠 The study introduces "mixed selectivity," where single neurons perform multiple jobs depending on context, and proposes that slower brain waves create shifting patterns of quiet across the cortex, controlling which faster waves carrying sensory information can get through.

🧠 This research suggests consciousness may depend on the coordination and timing of brain activity across the entire cortex, rather than specific neural connections, likening anesthesia to a conductor leaving an orchestra.

#Neuroscience #BrainResearch #CognitiveScience

🧠 Researchers at Nagoya University have identified orexin-producing neurons in rats' brains that play a key role in food-reward motivation. These neurons, located in the hypothalamus, influence how much effort an animal is willing to exert for a reward.

💡 Activating these orexin neurons made rats work harder for food, while inhibiting them led to quicker abandonment of the effort. Activity increased before a reward and decreased afterward, with sustained high activity when a reward was expected but absent.

📈 The study, published in PNAS, suggests orexin activity could serve as a marker for the effort involved in pursuing expected rewards and is crucial for linking expectations with motivated behavior.

🔬 Future research will explore how these orexin neurons connect with other brain circuits to understand the natural triggers for motivated actions, with potential implications for treating conditions linked to disrupted motivation, like depression and addiction.

#Neuroscience #Motivation #BrainResearch

Scientists implanted lab-grown human brain tissue into mice and found that the neurons survived, integrated with the animals' brain circuits, and responded to sensory signals, providing a new model for studying human neurological disorders.

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#BrainResearch #Neurobiology #NeurologicalDisorders

🧠 Stanford researchers have successfully grown human cortical tissue within mice, with the human tissue comprising over 90% of the cortical volume within three months. This integrated tissue became electrically active and connected to the mouse's nervous system.

🔬 This breakthrough aims to overcome the limitations of studying the human brain in isolation, offering a more complete model than previous organoids or experiments in rats.

💡 The research, published in Nature, could pave the way for better understanding and testing treatments for neurological conditions like frontotemporal dementia and epilepsy by using patient-derived cortical organoids integrated into mice.

#Neuroscience #BrainResearch #ScienceBreakthrough

Human brain is two separate organs, Stanford Medicine-led research finds

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#BrainResearch #Neuroscience #StanfordMedicine

🧠 Stanford Medicine Discovery: Research reveals the human brain is not one unified organ, but two distinct systems that evolved independently over hundreds of millions of years.

🔬 Two Evolved Nervous Systems: The brain comprises a more primitive part controlling vital functions (heartbeat, breathing) and a newer part enabling higher-level thinking (poetry, math).

💡 Unlocking Disease Research: This finding helps explain difficulties in growing certain brain cells and opens new avenues for studying devastating diseases like spinal muscular atrophy (SMA) and amyotrophic lateral sclerosis (ALS).

🧪 Lab-Grown Hindbrain Neurons: Researchers successfully grew functional hindbrain motor neurons in the lab, a breakthrough for understanding and potentially treating brain stem conditions.

#BrainResearch #Neuroscience #ScienceDiscovery

🧠 Stanford Medicine research reveals the human brain is composed of two distinct organs that evolved separately over millions of years, overturning a long-held model of unified brain development.

🔬 This discovery suggests the forebrain, responsible for higher-level thinking, and the hindbrain, controlling essential life functions, originate from different progenitor cells.

💡 This breakthrough could revolutionize research into devastating brain stem diseases like spinal muscular atrophy (SMA) and amyotrophic lateral sclerosis (ALS), enabling the lab growth of previously elusive hindbrain neurons.

#BrainResearch #Neuroscience #MedicalBreakthrough

A new study led by Stanford Medicine found the brain is two separate organs adjacent to one another. The finding could aid research into devastating neurological diseases.

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#BrainResearch #Neuroscience #StanfordMedicine

🧠 Brain Reimagined: Not One, But Two Organs
New research from Stanford Medicine reveals the human brain is actually two distinct organs that evolved separately over hundreds of millions of years, overturning previous models of a single origin.

🔬 Explaining Past Research Challenges
This discovery helps explain why scientists have struggled to grow certain brain cells in labs and opens new avenues for studying diseases like spinal muscular atrophy (SMA) and amyotrophic lateral sclerosis (ALS).

💡 Two Systems, Two Fates
The "forebrain" handles complex thinking, while a more primitive "hindbrain" (brain stem) controls vital automatic functions. These arise from different progenitor cells, explaining why attempts to convert one type to the other failed.

📅 Published September 18th in Nature Neuroscience.

#BrainResearch #Neuroscience #ScienceDiscovery

Human brain is two separate organs, Stanford Medicine-led research finds

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#BrainResearch #Neuroscience #StanfordMedicine

🧠 Stanford Medicine Uncovers Two Distinct Brain Origins
New research reveals the human brain is not a single organ but two distinct systems that evolved separately over millions of years. This challenges long-held scientific models of brain development.

🔬 Implications for Disease Research and Treatment
This discovery may explain difficulties in growing specific brain cells in labs and opens new avenues for studying diseases like spinal muscular atrophy (SMA) and amyotrophic lateral sclerosis (ALS).

📅 Published September 18 in Nature Neuroscience
The study, led by Kyle Loh, PhD, with co-first authors Carolyn "C" Dundes and Rayyan Jokhai, identifies separate progenitor cells for the forebrain/midbrain and hindbrain, discovered by examining mouse embryos.

#BrainResearch #Neuroscience #ScienceDiscovery

🧠 Stanford Medicine research reveals the brain is two distinct organs, not one, that evolved separately over hundreds of millions of years, overturning decades of scientific understanding about brain development.

💡 This discovery explains why growing certain brain cells in labs has been difficult and opens new pathways for studying diseases like spinal muscular atrophy (SMA) and amyotrophic lateral sclerosis (ALS).

🔬 Researchers successfully grew functional human hindbrain motor neurons in a lab for the first time by understanding their separate developmental origins from forebrain and midbrain cells.

🌍 The same two-origin brain pattern has been observed in chickens, zebrafish, and even acorn worms, suggesting a deep evolutionary history for this dual-brain structure.

#BrainResearch #Neuroscience #ScienceDiscovery

🧠 Research shows physical attractiveness and moral history influence how we process empathy for others in pain.

🤔 Moral judgments play a larger role in conscious feelings of pity, while physical attractiveness subtly impacts brain activity at different stages.

⚡️ Early brain activity shows more attention to ambiguous moral information, while later stages reveal how attractiveness can soften negative judgments or require more effort to empathize with those deemed "outcasts."

#Empathy #Psychology #BrainResearch