Articles tagged with Human Brain
Researchers at UCSF and UC Berkeley have developed a brain-computer interface (BCI) that allows a woman with severe paralysis from a brainstem stroke to speak through a digital avatar. The system can decode brain signals into text at nearly 80 words per minute, making it a vast improvement over commercially available technology.
Researchers developed a digital biomarker that detects early signs of Alzheimer's disease using EEG headbands, identifying abnormal levels of proteins in sleep patterns. The study found measurable problems with memory reactivation in 205 aging adults, paving the way for affordable devices to monitor brain health.
New research published in Human Brain Mapping indicates that deafness does not affect the mechanisms and brain circuits supporting social skills. Deaf individuals show greater activation in regions involved in processing visual inputs like signs and lip reading.
A study found that dogs are more sensitive to speech directed at them than adult-directed speech, with a greater response to female voices. The researchers measured dog brain activity via fMRI and found that the sensitivity was affected by voice pitch and variation.
Researchers found a lognormal distribution of neuron densities in mammalian brains, influencing network connectivity and potentially promoting efficient information transmission. The discovery is relevant for modeling the brain accurately and designing brain-inspired technology.
Researchers found that C9ORF72 mutations impair neural stem cell renewal, leading to reduced brain regions during embryonic development. This impairment could contribute to disease symptoms later in life. The study used patient-derived nerve cells and laboratory mice to demonstrate the impact of C9ORF72 on neurodevelopment.
A new study from Texas A&M University finds a correlation between secondhand smoke exposure and higher blood lead levels in children. The research suggests that education and mitigation efforts can further protect kids and adolescents from lead exposure, building on past success of lead removal initiatives.
Researchers found that anxious individuals rely on a less efficient section of the forebrain for emotional control, making it difficult for them to choose alternative behavior. This leads to avoidance of social situations and prevents them from learning that they are not as negative as they think.
A new study published in Nature Genetics has identified over 4,000 genetic variants linked to brain structure, revealing how the brain's organization is shaped by genetics. The research found that different sets of genes contribute to folding and size of the cortex, with some genes linked to larger or smaller head sizes.
A study by the University of Konstanz found that people's self-assessments of their immune response to vaccination corresponded surprisingly well with actual antibody levels, especially when the immune response was weak. The researchers suggest that patients' self-perceptions provide valuable clues about their state of health, and phys...
Dr. Heather Sandison's study reveals significant improvements in cognitive function among individuals with cognitive decline after six months of a multimodal, individualized care plan. The study demonstrates the feasibility and impact of a holistic approach targeting various factors contributing to Alzheimer's disease progression.
Researchers propose a hypothesis that astrocytes, non-neuronal cells in the brain, can perform core computation as transformers, providing insights into human brain function and machine learning success. This discovery could spark future neuroscience research and help explain transformer performance across complex tasks.
Scientists successfully reconstructed recognizable versions of Pink Floyd's 'Another Brick in the Wall, Part 1' using nonlinear modeling to decode brain activity. The study identified a unique region in the Superior Temporal Gyrus (STG) responsible for rhythm perception, with electrodes from this region crucial for accurate reconstruct...
Researchers used machine learning algorithms to analyze brain imaging data and identify changes associated with autism spectrum disorder. The study found that the methodology could determine ASD diagnosis with above 95% accuracy, highlighting potential for improved diagnostic methods.
Neuroscientists at UC Berkeley have successfully reconstructed a recognizable song from brain recordings, capturing the electrical activity of brain regions tuned to music attributes. This breakthrough could enable future brain implants with prosodic content, improving communication for patients with speech disorders.
A study found that teenage smokers have less grey matter in their left frontal lobe, associated with decision-making and rule-breaking. This loss of grey matter may lead to increased impulsivity and a desire for smoking, as well as weaken control over nicotine use.
A study of nearly 1,300 individuals diagnosed with six types of mental illness reveals diverse brain changes, with no more than 7% showing similar deviations in the same area. The research identifies potential treatment targets for individualized therapy.
HBP researchers used glucose uptake to locate alpha waves' generation, finding subcortical areas drive cortical activity associated with consciousness. The study reveals an inverted u-shape relation between alpha power and brain function in patients with disorders of consciousness.
Researchers studied how tastes influence creativity by analyzing brain networks and individual preferences. They found that the subjective evaluation of ideas plays a crucial role in creativity, and that individuals have different creative profiles related to their fields of activity.
A new digital headset can detect subtle forces exerted on the skull as the heart contracts, revealing brain changes even in athletes whose symptoms have subsided. The device could help clinicians and coaches make more informed decisions about when athletes are ready to return to play after a concussion.
A recent study at the University of Helsinki found that speech production and singing are supported by the same neural network in the brain, challenging previous notions about their separate functions. The left hemisphere plays a crucial role in both abilities, particularly in terms of singing.
A study found that longer duration of type 2 diabetes is associated with decreased brain structure and increased white matter hyperintensities. Despite this, cognition was not affected, highlighting the need for early screening for cognitive disorders in diabetic patients.
Researchers found an abnormal imbalance of excitatory cortical neurons in people with autism spectrum disorder, depending on their head size. The study used human 'mini-brain' models called organoids to recreate the brain development alteration that occurred in patients during fetal development.
A small pilot study found associations between specific microbe species and infants' performance in tests of social attention and rhythmic processing. The researchers observed higher levels of Actinobacteria and Bifidobacterium microbes in infants with better cognitive abilities.
A study found that border-associated macrophages play a crucial role in neuroinflammation and neurodegeneration in Parkinson's disease. Deleting MHCII from these cells reduced neuroinflammation, suggesting they are essential for presenting alpha-synuclein antigens to T cells.
A new study using MINDWATCH brain-monitoring technology reveals that listening to music and drinking coffee can measurably alter brain arousal, improving performance in working memory tasks. Perfume had a modest positive effect as well.
Researchers from HSE University challenged the famous Libet studies on free will, revealing a lack of correlation between brain activity and decision-making. The study used advanced EEG techniques to investigate the timing of intention awareness and final decision, finding that the latter could be influenced by experimental procedures.
A Monash University study using roundworms found that certain foods, such as apples and herbs, can help protect against brain function deterioration. The researchers discovered that a molecule present in these foods, ursolic acid, causes a gene to turn on, making a specific type of fat that prevents axon fragility.
Researchers at Duke University Medical Center have identified a fatty molecule in breast milk that triggers a process in which stem cells produce new white matter, reversing neurological damage. This finding holds promise for developing therapies to treat preterm babies with cerebral palsy.
A new economic model suggests that extreme climates during the Middle Pleistocene era drove human brain evolution through assortative mating. The study found that colder climates favored individuals with larger brains, leading to an increase in intelligence.
A Pitt Professor believes oligodendrocytes, the nerve insulating cells, hold the solution to BCI's nagging problem. By understanding and preserving these cells, researchers aim to improve BCI's performance and expand its applications beyond paralysis.
The study reveals altered magnitudes and coherence between oscillations in brain vasculature and brain waves in older adults. This finding has significant implications for the assessment of Alzheimer's disease and monitoring of neurodegenerative disorders.
A recent study by Tufts University researchers found that myo-inositol in human breast milk increases synaptic connections between neurons, indicating stronger brain connectivity. This finding could lead to improved infant formulas and better brain health outcomes for adults with certain psychiatric conditions.
A large cohort study found that a low intake of dietary fiber during pregnancy is associated with neurodevelopmental delays in children. The study analyzed data from over 76,000 mother-infant pairs and found that children of mothers who consumed less fiber were more likely to show delays in brain function development.
Researchers at CU Anschutz Medical Campus discovered a brain protein link to cognitive decline. Altering this CaMKII protein in mice mimicked aging effects on memory and learning.
Researchers at Charité develop a world's first non-invasive bidirectional brain-computer interface using quantum sensors and temporal interference magnetic stimulation, aiming to treat psychiatric disorders. The system promises improved accuracy and accessibility over previous methods.
A muscle-building supplement called beta-hydroxy beta-methylbutyrate (HMB) has been shown to reduce plaques and increase factors for neuronal growth in mice with Alzheimer's-like pathology. The study found that HMB stimulates a nuclear hormone receptor to improve memory and learning in mice with Alzheimer's disease.
Researchers have made breakthroughs in two areas of computing: improving current semiconductor technology and developing new neuromorphic devices that think like the human brain. These advancements aim to increase efficiency, power, and processing capabilities for future technological leaps.
Scientists have identified a region of the brain where sustained visual images are retained during perception. This finding may help doctors determine whether coma patients are still aware of their surroundings and could lead to treatments for disorders of consciousness.
Researchers found that young and healthy human glial progenitor cells can outcompete older and diseased cells in the adult brain, replacing them with healthier ones. This breakthrough has strong therapeutic implications for treating neurological disorders like Huntington's disease.
A study found that babies watching live music had higher heart rates and were more engaged than those watching recordings, even with identical audio. The researchers tracked the babies' responses using heart monitors and tablets, and noted that the live performance captured their attention for 72% of the show.
The new Clinical Research Unit will investigate autoantibodies' role in neurological disorders, focusing on diagnosis and treatment. Researchers expect innovative therapies for patients with previously suspected diseases.
Scientists have created human brain organoids free of animal cells, which could greatly improve the study and treatment of neurodegenerative conditions. The novel method uses an engineered extracellular matrix to support stem cell growth, resulting in more accurate models of brain development.
The University of Texas Health Science Center at San Antonio has developed an AI algorithm that can accurately count brain lesions on MRI scans in seconds. This tool helps neuroradiologists evaluate patients' brain diseases at earlier stages and identify the most significant lesions associated with stroke and small-vessel disease.
A Lehigh University professor has received $4 million in NIH grants to develop an AI-driven approach for precision mental health diagnosis and care. The project aims to identify biomarkers in the brain that can predict treatment response and personalize interventions for patients with depression and other mental disorders.
Using MRI instead of CT with CTA alone in patients presenting to the ED with dizziness was associated with greater critical neuroimaging results and more frequent echocardiography. Patients with dizziness undergoing MRI showed a lower frequency of 90-day ED readmissions compared to those discharged after CT with CTA alone.
Researchers found a correlation between somatic copy-number variants and schizophrenia, with genes NRXN1 and ABCB11 being identified as key players. These mutations occur early in development but after genetic material is inherited, and are present only in a fraction of cells.
Researchers at Brigham and Women's Hospital found that depression after traumatic brain injury (TBI) has distinct abnormalities in brain circuitry compared to traditional major depressive disorder. The study proposes a new name for TBI-associated depression: 'TBI affective syndrome.'
Researchers at Georgetown University Medical Center have discovered a new location for the brain's spoken word lexicon, which is located in the front of the primary auditory cortex. This finding has significant implications for recovery and rehabilitation following a stroke or other brain injury.
The study reveals five distinct brain types, each suited for its purpose, from a jellyfish's diffuse neural network to the human brain's reflective capabilities. Researchers suggest that autonomous machines can learn from coordination in bees, rapid thinking in birds, and single-mindedness in worms.
Researchers at Korea University Medicine identified a new neuroimaging-based biomarker for MDD, the local gyrification index (LGI), which shows decreased cortical folding in patients. LGI values reflect long-drawn developmental processes and are stable markers compared to previous biomarkers.
A new study by investigators from the Brigham and Women’s Hospital found that lesions associated with epilepsy are connected to a common brain network, suggesting the brain connections disrupted by the lesions are key. This discovery may have clinical implications for predicting epilepsy risk and targeting treatments.
A team of scientists identified the dorsal medial prefrontal cortex as a key region in predicting rumination, which is linked to depression. The study's findings suggest that dynamic connectivity between brain regions can be used to decode rumination patterns.
A study at University of Turku found that reduced central thalamic nuclei activity is related to anesthesia-induced disconnectedness for propofol, dexmedetomidine, and sevoflurane. In contrast, S-ketamine was associated with increased left parietal cortex activity during disconnection.
Three University Hospitals and Case Western Reserve University research teams received $50,000 Collaborative Science Pilot Awards to explore innovative research projects. The awards aim to increase competitiveness and capacity for major external funding opportunities in key areas such as cancer, brain health and genetics.
A recent study published in Psychological Science discovered that lonely people exhibit dissimilar brain processing patterns compared to those who are not lonely. The researchers found that lonelier individuals show more unique and idiosyncratic brain responses, making it harder for them to establish social connections.
Researchers at TUM developed a new approach to measure human brain activity using microelectrodes and awake brain surgery. They found individual neurons specialize in handling specific numbers, providing insights into cognitive functions and developing solutions for brain function disorders.
Researchers discovered that a diet rich in the bacteria Lactobacillus reuteri can maintain associative learning ability in older nematodes. This finding suggests potential ways to use diet to reduce age-related cognitive decline in other animals, including humans.
Researchers used brain imaging to identify multiple subtypes of depression, finding distinct deviation patterns in functional connectivity among brain regions. This study provides leads for developing better treatments and personalized therapeutic interventions.
A new study examining brain tissue from 631 former football players found that the cumulative force of hits, not just the number of concussions, was the strongest predictor of chronic traumatic encephalopathy (CTE). The study suggests that reducing the force and frequency of head impacts could help prevent CTE in athletes.