Articles tagged with Human Brain
Research collaboration reveals that blood flow to the brain increased by 600% over human evolution, linked to intelligence growth. Ancient fossil skulls show larger holes in arteries, indicating faster increase in blood flow rate.
A new study reveals dogs can distinguish both vocabulary words and the intonation of human speech through brain regions used by humans. The research found that dogs process vocabulary in the left hemisphere and intonation in the right hemisphere, mirroring human brain function.
Researchers are uniting to tackle the complex challenge of understanding brain function through large-scale computational modeling. This approach aims to improve our knowledge of brain function by creating realistic models based on biological data.
Researchers at Georgia State University are investigating how the human brain has evolved to support technological learning. The study aims to identify unique aspects of the human brain and understand the factors that cause individuals to acquire technological skills differently.
A study suggests that humans' disproportionately large brain size resulted from sizing each other up in large social groups. The research proposes that helping others who are at least as successful as themselves favored by evolution. This idea has implications for engineering intelligent machines to decide cooperation and generosity.
A new study finds that humans have the highest number of cortical neurons among primates, but the prefrontal region's size is similar to non-human primates. Cooking allowed early humans to overcome energetic barriers, enabling brain growth and development.
A novel PET radiotracer called Martinostat has been developed to image epigenetic activity in the human brain. The tracer reveals patterns of uptake consistent with histone deacetylase (HDAC) expression levels, providing insights into gene regulation and potential therapies for brain disorders.
Researchers have created a detailed molecular atlas of primate brain development, revealing key differences between humans and our close evolutionary relatives. The study provides insights into the genetic code underlying brain development and neuropsychiatric diseases.
Johns Hopkins researchers track brain activity as participants make choices entirely on their own, pinpointing the parietal lobe's role in attention switching and frontal cortex involvement in deliberation. The findings shed light on the neural mechanisms underlying human volition and decision-making.
Researchers found that even when conflicting information is invisible, the human brain initiates mechanisms to resolve it. This occurs in the early visual cortex with minimal involvement of the fronto-parietal cortex.
Researchers have identified 16 distinct neuronal subtypes in the human cerebral cortex, revealing a surprising diversity in gene expression. This discovery provides insights into brain function and may shed light on diseases such as Alzheimer's and Parkinson's.
A team of researchers has developed a method to identify different subtypes of neurons in the human brain, revealing unique characteristics that can lead to differences in cellular function. The study provides a unified framework to analyze individual neurons and could help diagnose and treat brain disorders.
New research reveals that hierarchy in biological networks arises due to cost constraints on connections, leading to more efficient networks. This finding may accelerate the development of complex computational brains in AI and robotics.
Researchers found that archerfish can distinguish between up to 44 new faces, demonstrating impressive visual recognition capabilities. The study suggests that simple brains may be capable of complex tasks like facial recognition.
Researchers at UC Santa Barbara have pinpointed a specific long non-coding RNA that regulates neural development and drives human brain expansion. The lncRNA, called lncND, binds to microRNAs and regulates the expression of Notch proteins, which are critical for cell differentiation and development.
Researchers create a detailed semantic atlas of the brain's language processing areas, revealing similarities in semantic topography across individuals. The study has potential applications in brain-machine interfaces, decoding difficult-to-speak patients, and translating languages.
A new study maps the human brain's semantic atlas, revealing how different areas respond to words with similar meanings. This discovery holds promise for decoding inner dialogue in individuals who struggle to communicate, such as stroke or ALS patients.
Researchers at Carnegie Mellon University have identified specific neural systems used to encode new scientific concepts. The study shows that the brain repurposes existing neural structures to form new knowledge, enabling humans to learn abstract ideas.
A study published in Attention, Perception, & Psychophysics reveals that people can intentionally exclude objects from their mental model of their environment. Test observers were faster at finding a target when the objects matched the color of the rectangle, but not when they did not, indicating top-down control over attention.
A team of researchers has successfully replicated the folding of a human brain in three-dimensional form using a simple mechanical principle. The study suggests that the unique shape of the human brain plays a crucial role in determining its folds, which are essential for maintaining proper brain function.
Researchers demonstrate that human brain uses different frequency channels depending on the direction of information transport, similar to macaque monkeys. The findings might help understand the cause of psychiatric illnesses where top-down and bottom-up flows get mixed up.
Researchers at Imperial College London have discovered two clusters of genes linked to human intelligence, which may influence cognitive functions such as memory and attention. The study provides new insights into the genetic basis of intelligence and may lead to future treatments for neurodevelopmental diseases.
Researchers analyzed neuronal avalanches in the human brain during perceptual tasks, discovering a high degree of similarity in temporal and spatial distribution. The study provides an analytic 'biometric' technique to link MEG-generated data to specific individuals.
The American Epilepsy Society awarded Dr. Christian E. Elger the William G. Lennox Award for expanding his department into a leading program in epilepsy surgery and human brain research. Elger's pioneering work includes studying seizure prediction and developing pre-surgical cognitive outcomes.
Scientists measured dopamine signals in Parkinson's patients during brain surgery, revealing rapid dopamine release encodes information crucial for human choice. The findings have widespread implications for neurological and psychiatric disorders, including depression and addiction.
The study reveals that both humans and monkeys have a common brain area that recognizes the orderliness of sound sequences, suggesting evolutionary origins of cognitive functions underlying language. This knowledge may help understanding how we learn and lose language, such as in aphasia after a stroke or dementia.
Researchers discovered human brains exhibit greater plasticity and adaptability than chimpanzee brains. Human brain organization is less influenced by genetics compared to chimpanzees, suggesting a strong role for environmental factors in shaping the human cerebral structure.
Researchers identified a conserved set of gene expression patterns common to all individuals, providing key insights into the core genetic code that makes our brains human. These patterns include those associated with diseases like autism and Alzheimer's, offering new opportunities for therapeutic targeting.
Researchers found human brains exhibit greater adaptability to environments and cultures due to higher plasticity, whereas chimpanzees' brain organization is more genetically determined. This study provides insight into human evolution and potential susceptibility to neurodegenerative diseases.
Scientists develop first-of-its-kind synthetic synapse that mimics the plasticity of the real thing, allowing for learning and self-healing capabilities. The novel dynamic system made from aluminum oxide and twisted bilayer graphene has the potential to aid in the development of biology-inspired electronics.
Researchers found that individuals with faster alpha oscillations can perceive two flashes of light in 25 milliseconds, whereas those with slower frequencies require a 45-millisecond delay. This suggests that finer resolution in visual perception is linked to faster brain waves.
A recent study has found that the human visual cortex contains neurons that selectively respond to intermediate colors, not just red, green, yellow, and blue. This discovery challenges existing color encoding models and may provide clues for designing more precise multi-primary-color displays.
Researchers have developed a nearly complete human brain model, engineered from adult human skin cells, with an identifiable structure and containing 99% of the genes present in the human fetal brain. The lab-grown brain has the potential to accelerate studies of genetic and environmental causes of central nervous system disorders.
Researchers at Rockefeller University have identified a similar process in flies that ignores visual input caused by their own flight turns. This finding can help understand how ongoing behavior influences visual perception and may provide insights into sensory processing disorders such as schizophrenia.
A new UC Berkeley study finds that brain rhythms synchronize within the frontal lobe to connect with other brain regions during cognitively challenging tasks. This synchronization enables quick communication between neurons, which is critical in various disorders such as Parkinson's disease and autism.
A unique brain network in humans controls and redirects attention, allowing us to select and prioritize information based on our needs. This network, which includes the dorsal and ventral attention networks, may have evolved to better process complex social cues and distinguish between relevant and irrelevant stimuli.
Researchers discovered over 100 DNA segments, known as enhancers, that play a vital role in normal development by controlling gene activity in the human brain. The study provides new insights into the genetic basis of autism and related neurological disorders.
The study reveals that 89% of connections in the idealized brain network showed up in the real brain network, suggesting evolutionarily designed to be very close to what our algorithm shows. The scientists' strategy prioritizes function over structure, highlighting essential links for optimal navigation.
Researchers have identified the epicenter of the brain's predictive ability in limbic tissue, which also plays a key role in emotions. This discovery challenges traditional theories on emotion and suggests that the brain is wired to ask questions about past experiences rather than react to external stimuli.
Research at Duke-NUS Medical School reveals lysophosphatidylcholines (LPCs) are crucial for human brain development and function. Studies show that mutations in the protein Mfsd2a, which transports LPCs, lead to impaired brain growth and function.
A new study published in Nature Genetics highlights the critical role of essential fatty acids like omega-3 in human brain growth and development. The research, conducted in a rural community in Pakistan, identified a genetic mutation that impairs the brain's ability to absorb these vital fats.
Researchers at UC Santa Barbara demonstrate a simple artificial neural circuit that performs image classification, using memristor technology to achieve brain-like efficiency. The breakthrough has potential applications in medical imaging, navigation systems, and search technologies.
Researchers found a key difference in human and chimpanzee DNA that boosts brain size in mouse embryos. This discovery sheds light on the genetic basis of human brain evolution and may help explain why humans have unique capabilities compared to chimps.
The University of Waterloo has three researchers recognized as among Canada's top natural sciences and engineering researchers for 2015. Chris Eliasmith, David Blowes and Michael McTavish are making significant advancements in human brain research, environmental impact reduction and invasive species understanding through their work. Th...
New research reveals that unexpected brain connectivity can lead to fast brain specialization, allowing humans to adapt to rapid technological and cultural innovations. Blind individuals using sensory substitution devices activate specialized brain areas for tasks such as reading and recognizing numerical symbols.
Researchers found that endogenous retroviruses, constituting around 5% of human DNA, regulate gene expression and have an important regulatory role in the brain. The study suggests that viruses take a firm hold on cellular machinery over evolution, leading to complex brain functions.
Researchers at the University of Rochester used imaging technique to show how brain heals itself after surgery, predicting vision recovery based on myelin insulation. This finding could have implications for treating various central nervous system injuries.
Researchers from UC San Francisco discovered a protein called PDGFD that is made in growing human brains but not in mice, driving brain cell growth. The protein's presence may have played an evolutionary role in the huge increase in cortical size in mammals leading to humans.
Researchers at Karolinska Institutet discovered that human brains have a higher rate of oligodendrocyte maintenance and can modulate myelin production, enabling faster adaptation and learning. This finding has significant implications for understanding neurological diseases such as MS.
Researchers discuss the limitations of brain simulations, citing the need to account for individual experience and social context. They also raise concerns about the potential creation of artificial consciousness and the technical challenges of simulating complex biological systems.
Researchers at Lund University have identified a previously unknown mechanism by which the brain produces new nerve cells after a stroke. Astrocytes, support cells in the brain, can form immature nerve cells that mature into functional neurons.
Researchers discovered that a single dose of antidepressant can dramatically change the human brain's functional architecture within three hours. The study found increased connectivity in two specific brain regions, while reducing intrinsic connectivity elsewhere.
A team of neuroscientists and robotics engineers has demonstrated direct brain-to-brain communication in humans, transmitting information via the internet between two human subjects separated by 5,000 miles. The study used advanced precision neuro-technologies to directly transmit a thought from one person to another without them havin...
A study at the University of Adelaide found that certain areas of the brain remain protected from aging, enabling spatial attention skills to remain consistent across ages. The research challenges current models of cognitive aging and may have implications for understanding Alzheimer's disease.
Researchers at Cornell University have discovered that the human brain uses fine-grained patterns of neural activity to represent emotions in a standardized code. This code allows individuals to share similar emotional experiences, regardless of personal perspectives or cultural backgrounds.
Researchers developed a new circuit board, Neurogrid, capable of simulating 1 million neurons and billions of synaptic connections using 16 custom-designed chips. The device is more efficient than other brain mimics on the power it takes to run a tablet computer.
A groundbreaking study reveals that the human brain is sensitive to language universals, with frequent syllables processed more readily than infrequent ones. The brain's response to ill-formed syllables points to a universal linguistic principle governing sound patterns in human language.
Researchers have created a high-resolution blueprint for the developing human brain, mapping where genes are turned on and off during mid-pregnancy. This atlas provides insight into diseases like autism and the origins of human uniqueness, revealing key genetic hubs linked to social behavior and cognitive features.
The Allen Mouse Brain Connectivity Atlas provides a comprehensive wiring diagram of the mammalian brain, revealing specific patterns in connections between brain regions and varying connection strengths. The atlas offers unparalleled details into how structures are connected inside the brain.
A study published in PLOS Genetics found that the DUF1220 gene family is linked to the severity of autism symptoms. The research suggests that increasing copies of this gene segment may be associated with more severe symptoms, particularly social deficits, communicative impairments, and repetitive behaviors.