Articles tagged with Human Brain
A new study reveals distinct DNA methylation profiles of human microglia cells across different age groups, disease states, and brain regions. The researchers found that interindividual differences in methylation variability had a larger impact than regional or diagnostic differences.
A study by UC Riverside researchers shows that reactivating the Fmr1 gene in young transgenic mice with Fragile X syndrome eliminates symptoms. This breakthrough treatment offers hope for young children living with FXS and suggests targeting early brain development may be effective.
Researchers at the University of Bath have optimised a peptide that prevents alpha-synuclein misfolding, a key feature of Parkinson's disease. The new molecule, 4654W(N6A), has shown significant promise in lab experiments and could lead to the development of a disease-modifying treatment.
Researchers at the University of Ottawa have made a breakthrough in reversing memory deficits and slowing disease progression in female mouse models of Alzheimer's disease. The study found that activating a specific receptor was effective in treating females, who make up two-thirds of diagnosed cases.
The human brain contains trillions of contact points, requiring massive computational resources. Researchers outline the need for exascale computing power to tackle brain complexity.
A new study by Ritsumeikan University reveals that whole-body dynamic balance training increases brain connectivity and improves motor learning. The research found significant changes in brain activity associated with offline learning, opening up new avenues for studying neural networks during natural tasks.
Researchers at OHSU have discovered a unique neural cell assembly that enables complex learning in songbirds, similar to those found in the human primary motor cortex. This finding has implications for understanding fine motor control and may lead to new avenues for treating disorders such as ALS.
Researchers at the University of Trento discovered brain cells acting as a compass for navigating conceptual spaces, similar to those found in physical environments. These 'head-direction cells' signal direction even when movement occurs in abstract spaces, suggesting a complementary mechanism for conceptual navigation.
Researchers from HSE School of Linguistics and Centre for Language and Brain conducted an experiment to understand how language speakers perceive polysemous words. The proximity of figurative senses to the literal sense affects perception as semantically different.
Researchers found that human neurons have a lower density of ion channels compared to other mammals, suggesting an evolutionary adaptation for energy efficiency. This difference in channel density may enable the human brain to allocate more resources to complex cognitive processes.
A study by University of Minnesota Medical School researchers shows that merging AI with electrical brain stimulation can enhance specific brain functions related to self-control and mental flexibility. The method improved cognitive control in patients undergoing brain surgery for epilepsy, reducing anxiety and depression symptoms.
A new algorithm has been developed to train spiking neural networks, mimicking the human brain's structure and function. This approach enables these powerful, fast, and energy-efficient systems to solve complex tasks like image classification with high precision.
A new study by Hungarian researchers finds that dogs use complex computations and brain regions similar to humans to learn word boundaries in speech. Dogs can recognize syllable patterning, such as frequent words with consistent syllables, and use this information to extract words from continuous speech.
A new study published in Scientific Reports found that lack of sleep affects gait control, with students who stayed awake all night performing poorly. However, those who compensated for lost sleep by catching up on weekends showed improved walking control.
A new study reveals that high-performing AI next-word prediction models resemble the function of language-processing centers in the human brain. The models' activity patterns closely match those seen in the brain during language tasks, suggesting a potential connection between AI and human language processing.
Aging affects bilateral coordination, particularly anti-phase movement, by altering alpha and beta neural activity. Researchers discovered that older subjects displayed lower synchronization between sides of the body during anti-phase movements, making such tasks more challenging.
Researchers found that human brains decreased in size around 3,000 years ago, coinciding with the expansion of collective intelligence and social groups. This decrease was linked to a reduction in brain energy use due to the externalization of knowledge.
Researchers at University of Cambridge have developed lab-grown mini brains that can mimic the development of motor neurone disease and frontotemporal dementia. The models, grown for up to 340 days, provide valuable insights into early stages of these devastating conditions.
The Human Brain Project unveiled its 8th annual Summit with presentations of new scientific insights and technologies. The project has developed a powerful new infrastructure called EBRAINS, which will serve generations of brain scientists.
The study found that negative smells trigger a physical avoidance response, indicating an unconscious and rapid reaction mechanism. The olfactory bulb processes smells rapidly, with signals reaching the brain within 100-150 milliseconds.
A global study of 46,500 people aged 18-99 found that older adults are more willing to donate to charities within their own country, but less likely to do so internationally. This preference for 'in-group' behavior remains consistent even after accounting for wealth, pandemic severity, and perceived risk.
Researchers at Lund University discovered a previously overlooked part of our DNA that appears to contribute to the development of human and chimpanzee brains. The study found that humans and chimpanzees use a structural variant of DNA in different ways, which plays a significant role in brain evolution.
The Human Brain Project's Scientific Conference presents abundant scientific achievements in neuroscience, brain medicine, and technology. Renowned experts discuss past, present, and future of brain research, highlighting the role of HBP in driving innovation.
Researchers at Hebrew University developed a novel approach to mapping brain white matter fiber architecture using Nissl staining. The technique, called Nissl-ST, reveals the hidden patterns and organization of glial cells in white matter, opening new avenues for studying brain development, aging, and neurodegenerative diseases.
Researchers from Cold Spring Harbor Laboratory have published a comprehensive census of cell types in the primary motor cortex of human, mouse, and monkey brains. This milestone could lead to breakthroughs in studying and treating conditions like schizophrenia, depression, Alzheimer's, and traumatic brain injuries.
Researchers used fractal analysis to study brain network patterns while listening to a story. The results show that complex thoughts are reflected in high-order dynamic correlations in neural activity patterns.
Neuroscientists at Lieber Institute for Brain Development discover similar cell types across human and mouse brains associated with reward and addiction. The study provides molecular profiles of cell types in key regions, including the nucleus accumbens and amygdala.
A recent study from Aarhus University found that the brain experiences musical phrases as complete when they end in uncertainty, allowing it to save completed phrases for future recall. This challenges traditional theories of auditory perception, suggesting the brain is a prediction machine.
Researchers at the University of Birmingham discovered that humans process written words rapidly, using pre-processing judgments within 100ms, and that this activity is linked to the complexity of the word. This study has significant implications for diagnosing and training individuals with dyslexia where pre-processing is impaired.
Scientists at Aarhus University are working on a nano-sized brain-inspired computer that can harvest its own energy, making it the smallest and most efficient AI system yet. The project aims to reduce power consumption by 12 orders of magnitude compared to modern supercomputers.
A research team identified H3 acetylation as a crucial factor in human brain development, leading to the unique neocortex structure. This finding could pave the way for new treatments for neurodegenerative diseases by manipulating basal progenitor cell proliferation.
Researchers at University of Toronto found that the brain's prefrontal cortex generalizes perceptual experiences from different senses, producing sensations even without direct experience. The study used functional magnetic resonance imaging and massage stones to capture neural activity patterns in the brain.
Researchers at The Hebrew University of Jerusalem have developed a new deep learning artificial infrastructure inspired by individual neurons. Their approach uses complex mathematical modeling to replicate the brain's electrical processes and create more intelligent AI systems.
Researchers at the University of California, Davis, have developed a new model for solving abstract problems by utilizing internal cognitive maps. The study found that humans can mentally reconstruct complex social networks and use these maps to make decisions, even with limited information.
A recent study has identified nearly half of the fastest-evolving human genes as playing a crucial role in rewriting the course of human brain development. The research used an innovative approach called CaptureMPRA to analyze the function of Human Accelerated Regions (HARs) in regulating gene expression in the brain.
Researchers from Binghamton University and Harvard Medical School are using computer modeling and advanced imaging to study brain folding and growth in fetuses. They hope to understand the underlying mechanism of how brains form and how early weeks affect later life.
Researchers at UCLA developed brain organoids that mimic human brain structure and function, allowing for the study of neurological disorders like Rett syndrome. The organoids showed organized waves of activity similar to those found in living brains and responded to treatment with an experimental drug.
A new study from Binghamton University tracked how practicing meditation for just a couple of months changed the brain patterns of 10 students. The results show that meditation training led to faster switching between the brain's two general states of consciousness, indicating an effect on fast switching and maintaining attention.
Researchers found that auditory and speech processing occur in parallel, with areas of the STG responding as fast as the primary auditory cortex when sentences were played. This challenges the traditional hierarchy model of speech processing and may offer new insights into conditions like dyslexia.
A new study has found that chronic opioid use changes gene expression in the brains of people with opioid use disorder (OUD), suggesting proinflammatory signaling and synaptic remodeling. The affected genes involved in immune response and neuronal connections were also identified, offering new targets for treatment.
A new study demonstrates that artificial intelligence networks based on human brain connectivity can perform cognitive tasks efficiently. Researchers created a brain connectivity pattern and applied it to an artificial neural network, which performed cognitive memory tasks more flexibly and efficiently than other benchmark architectures.
Researchers at Brown University introduce 'dignity neuroscience,' arguing that universal rights are rooted in human brain science. The concept posits five core elements - agency, autonomy, and self-determination; freedom from want and fear; uniqueness; and unconditionality - which reflect fundamental features of the human brain.
Researchers at Nagoya University have successfully created graphene-diamond junctions that mimic key brain functions such as synaptic plasticity and excitatory postsynaptic current. These junctions exhibit photo-sensing and photo-controllable functions similar to those performed by the brain and retina.
Researchers from NYUAD and University of Wisconsin-Madison develop interactive 3D diagrams to teach functional neuroanatomy. The study shows that VR exceeded PC viewing for experience-based learning outcomes, making it an enjoyable and easier learning tool.
Researchers at Keck School of Medicine and Caltech demonstrate a new way to produce highly detailed images of the human brain using functional photoacoustic computerized tomography (fPACT). This technology has the potential to be less expensive, more portable, and accessible to patients with implants.
A study by University of Missouri researchers reveals that physical layout and structure of print newspapers can improve readers' understanding of news on digital platforms. The team identified 10 affordances, or contextual clues, that help readers make sense of news, including physical, perceived, and relational affordances.
A Columbia Engineering/UCLA team discovers phase precession in the human brain, allowing neurons to signal information through precise timing. This finding has implications for understanding brain function and creating brain-machine interfaces.
The study found that the brain processes individual features of an object, such as sounds and actions, and also abstract symbol-like features. The researchers developed a hierarchical model to reflect how conceptual knowledge is represented in the human brain.
A study reveals significant epigenetic differences in the cerebellum of humans, chimpanzees, and monkeys, highlighting its importance in human brain evolution. The findings suggest that the cerebellum played a key role in the development of human culture, language, and tool use.
The eNeuro special collection explores the documentary In Silico, featuring reactions from leading neuroscientists on brain modelling and massive research collaborations. The commentaries discuss next steps for large-scale initiatives, charismatic leadership's impact, and the history of building brain models.
A new study reveals that human frontal cortex development follows a similar trajectory to that of other primates. The research analyzed brain structure and behavioral markers in humans, chimpanzees, mice, and macaques, finding that the three species show consistent patterns of brain maturation.
Researchers identified two distinct types of uncertainty affecting human anticipatory behavior: whether an event will occur and when it will happen. The brain dynamically adjusts its readiness to respond based on separate probability estimates of these two uncertainties, allowing for more accurate predictions in real-time.
Biologists found that plasticisers bisphenol A and bisphenol S disrupt nerve cell communication in fish brains. They warn of similar effects on human brains, highlighting the need for alternative plasticisers.
Using human brain organoid models, researchers demonstrate various viruses cause microcephaly through different mechanisms. ZIKV and HSV-1 infections impair neuroepithelial identity and attenuate Type I interferon responses.
A new study found that modern human-like brains evolved comparatively late in the genus Homo and after their first African dispersal. The research analyzed fossilized skulls to discover that early humans retained primitive brain organization until later innovations allowed for unique behaviors and abilities.
The modern human brain is believed to have originated in Africa around 1.7 million years ago, with significant advancements in brain structure and function occurring during this time frame. The study used CT scans to analyze fossil skulls and compared them to those of great apes and humans.
The film IN SILICO chronicles the ambitious quest to simulate the human brain on supercomputers, exposing controversy and ego in the scientific process. It encourages critical evaluation of brain research and technology, highlighting the need for a more nuanced approach to neuroscience.
A new study reveals the genetic mechanism behind human brain development, identifying a key molecule called ZEB2 that influences brain growth. The research found that human brain organoids grow larger and have more neurons than those from other apes due to a delayed change in cell shape.
Researchers found that certain genes in inflammatory cells called glial cells increased their activity and grew longer appendages after death. This discovery challenges current understanding of post-mortem gene expression and cell activity, which may impact research on disorders like autism, schizophrenia, and Alzheimer's disease.
Scientists have developed a novel technology combining 3-D bioelectronic systems with human neural cultures to study brain development and repair. The device can record electrical activity, manipulate neural activity using light pulses, and perform optogenetic experiments.