Articles tagged with Brain Structure
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Researchers are investigating the link between impaired brain hubs and mental health issues using cutting-edge methods. The study aims to understand how hub regions contribute to altered brain network function and behavior, potentially leading to better treatments for brain disorders.
Researchers have developed a new method to measure the complex interactions between different brain areas using both electroencephalography (EEG) and functional magnetic resonance imaging (fMRI). This approach reveals linked dynamics between EEG- and fMRI-derived connectomes, providing insights into neural communication. The findings s...
Researchers developed a new method to map brain-wide connections using DNA barcodes, reducing costs compared to traditional methods. The approach generates virtually infinite labels to distinguish individual cells, enabling the creation of accurate anatomical maps.
Researchers developed a novel unbiased strategy to identify activated neural inputs underlying specific behaviors. Using mouse models, they demonstrated the input specificity of their approach, tracing activated cell ensembles.
Researchers at the Picower Institute for Learning and Memory discovered that the lateral septum tracks rewards with an emphasis on location. This brain region plays a crucial role in filtering and converting raw information about location into reward-specific output.
A team of scientists proposes a memristive neurohybrid chip to create compact biosensors and neuroprostheses with high adaptability. The system combines neural cellular and microfluidic technologies for real-time registration, processing, and stimulation of bioelectrical activity.
Researchers have successfully modified brain activity using non-invasive techniques and characterized its dynamics. The study provides foundational knowledge for future technologies that may expedite cognitive processes and enable adaptive teaming neurotechnologies.
A new 3D atlas of the mouse brain provides cellular-level detail, identifying previously unseen structures and nerve fibers. The Allen Mouse Brain Common Coordinate Framework (CCFv3) is an average of serial images from 1,675 mice, allowing for comparison and integration of diverse data types.
Researchers found reduced brain structure and connection in individuals with body integrity dysphoria, linked to feelings of amputation. The study suggests specific brain anomalies may contribute to the desire for amputation, potentially leading to improved treatment options.
A new, implant-free optogenetics technique successfully manipulated neuron activity in mice and monkeys without causing brain damage. The SOUL protein allowed for light-induced alterations in neuronal responses throughout the entire mouse brain and superficial regions of the macaque brain.
Researchers at MIT developed a new automated AI system that reduces the energy required for training and running neural networks. The system, called a 'once-for-all' network, trains one large neural network comprising many pretrained subnetworks, reducing carbon emissions by low triple digits.
Researchers at Mayo Clinic discovered that fetal surgery to correct congenital spinal cord defects is more effective at healing neurological structure than surgery after birth. The procedure led to improved brain structure and anatomy in three patients with myelomeningocele.
Researchers recreated a three-dimensional image of brain connectivity using tissue scattering and biophysical models. The findings enhance scientists' ability to conceptualize the brain's architecture by allowing the creation of high-resolution images of nerve fiber arrangements.
A genetic study by the University of Trento identified a crucial molecule (Wnt inhibitory factor 1, Wif1) in the correct composition of habenula neurons and their connectivity. This discovery may provide new insights into the causes of neurological disorders like autism.
A new study by the University of Geneva reveals that elderly individuals with low agreeableness are better protected against Alzheimer's disease. Brain imaging and psycho-cognitive evaluations showed that these individuals have preserved brain regions damaged in normal aging and Alzheimer's disease.
Researchers at Stanford University used brain imaging to forecast how long people will watch videos online. They found that brain responses, not self-reports, predict video popularity. Longer video views were associated with activity in reward-sensitive regions of the brain.
Researchers found that 4-year-olds can understand others' thoughts, but younger children can predict behavior based on surface-level cues. The brain has two distinct systems for perspective-taking, which mature at different ages.
In a study published in Current Biology, researchers found that rats exhibit harm aversion, stopping use of their preferred lever when it would cause pain to a neighboring rat. This phenomenon is linked to the same brain region associated with empathy in humans, suggesting that harm aversion is deeply ingrained in our biology.
Researchers discover chemical cues in orchid that stimulate mosquitoes' sense of smell, attracting them like flowers. The scent contains nonanal and lilac aldehyde, which stimulate mosquito antennae and draw in multiple species.
A recent study published in Scientific Reports found that daily smoking and heavy drinking may be associated with modest increases in relative brain age. Researchers used machine learning methods and MRI to analyze data from over 17,000 individuals and discovered a correlation between smoking habits and increased brain age.
Research published in PNAS reveals that brain networks 'come online' during adolescence, allowing teenagers to develop complex adult social skills. However, this process may also increase the risk of mental illness.
Researchers at the University of Washington found that mosquitoes are drawn to certain flowers like the blunt-leaf orchid due to a finely balanced bouquet of chemical compounds. The team discovered that combining specific chemicals stimulates the mosquito brain, drawing in mosquitoes as effectively as a real flower.
Researchers propose hybrid architectures to advance brain-inspired neuromorphic computing, focusing on operational functions needed to process information efficiently. The future of computing will not be about scaling components, but rethinking processor architecture to emulate brain efficiency.
Researchers discovered that altruistic individuals experience less physical pain than controls. Brain activity scans revealed a correlation between altruism and decreased pain activity in the brain's medial prefrontal cortex.
Researchers found that specific patterns of brain connectivity were associated with the development of attention-deficit/hyperactivity disorder (ADHD) and major depressive disorder. By examining brain architecture at age 7, the study identified potential links between brain development and later mental health symptoms in children.
The study found that BCI training alters specific regions of the brain involved in motor and visual tasks. This suggests potential therapeutic benefits for conditions like stroke rehabilitation. The changes occur within a short period, raising hopes for more efficient decoding of BCI activities.
A study published in PNAS reveals that corticobasal ganglia projecting neurons play a crucial role in song learning during juvenile development. In contrast, adult birds with disrupted projection neurons maintain their pre-learned song structure and exhibit normal vocal fluctuations.
A new study at UCSF used brain maps to predict FTD progression by analyzing connected brain networks, offering insights into the disease's spread and potential clinical tools. The research suggests that individualized predictions can be made based on neural network maps, which could lead to more effective treatment development.
Researchers found moderate levels of covariation between human and chimpanzee brain and braincase features, but distinct positions of brain sulci relative to cranial sutures in humans. The study suggests that changes in braincase morphology may be related to increased encephalization and bipedalism.
A study involving 20 participants found that manipulating graphemes affects brain activity in a specific visual region. This suggests the brain region processes written words for sound translation rather than meaning access, potentially explaining variations in reading abilities.
A study of 69 individuals with obsessive-compulsive disorder (OCD) reveals that conflict-related brain activity in 36 regions predicts successful exposure-based psychotherapy. The findings provide new insights into the neural mechanisms underlying OCD and support a tailored treatment strategy.
A study by researchers at Virginia Commonwealth University found that individuals with psychopathic traits have greater levels of gray matter density in the ventrolateral prefrontal cortex, a region involved in self-regulatory processes. This increased density is associated with improved impulse control and reduced antisocial behavior....
A study using fMRI found that the default mode network in the brain responds similarly to aesthetically pleasing images from different domains, indicating a possible universal code for beauty. This discovery may lead to insights into how we experience aesthetic experiences and could inform learning and well-being.
A new study reveals that listening to music involves activity in sensory regions, while recalling melodies activates frontal regions. The findings suggest a complex network of brain regions involved in music processing.
Researchers have identified four genetic regions associated with left-handedness, which are linked to differences in brain structure in language-related regions. These findings suggest that left-handers may have an advantage in verbal tasks due to coordinated brain communication.
New research reveals that human selective breeding has altered dog brain structure and behavior, with breeds exhibiting unique brain networks correlated to specific characteristics.
Researchers found that patients with more connected white matter in targeted brain regions respond better to non-invasive electrical brain stimulation, suggesting a potential breakthrough in personalizing the therapy. The study also showed partial reversal of abnormalities in brain activity caused by traumatic brain injury.
A new study from Scripps Research provides unprecedented insights into how visual signals are distributed to different brain regions. Researchers discovered that similar proteins travel preferentially to one brain region, while some are transported to multiple regions.
Researchers from Stevens Institute of Technology have identified two brain regions vulnerable to side hits that lead to concussions. The study reveals how rotational accelerations cause mechanical vibrations in these regions, resulting in tissue and cell damage. This knowledge can help develop safer sports helmets.
A new deep neural network architecture can identify manipulated images at the pixel level, detecting blurred boundaries and unnatural transitions between regions. This technology aims to improve photo editing tool security and detect deepfakes with high precision.
Researchers have discovered a new type of neuron that acts as the brain's metronome, keeping time regularly and improving rodents' ability to detect faint sensations. This finding is significant as it supports the long-hypothesized role of gamma rhythms in synchronizing brain signals.
Researchers at DZNE associate oxidative stress with the spreading of abnormal alpha-synuclein protein in Parkinson's disease, a neurodegenerative disorder. The findings suggest that oxidative stress may trigger the formation and aggregation of toxic alpha-synuclein species, leading to progressive pathology and neuronal damage.
Researchers found that brain networks are spatially and functionally fluid, with rapid changes in network activity over time. This challenges the long-held assumption that brain regions contribute to each network in a fixed way.
A new therapy has shown promise in promoting vascular repair following a stroke, leading to improved motor functions and regeneration of damaged blood vessels. Researchers used anti-Nogo-A antibodies in mice and found better recovery and reduced motor function impairment compared to control groups.
A new study reveals a reliable sequence of neural interactions in the human brain that corresponds to visual processing, language state, and articulation state when naming objects. The findings support the view that dynamic interactions within neural networks govern language production.
Increased visceral fat is associated with reduced brain structure and storage capacity, but oestradiol hormone protects women's brains in mid-life. Low oestradiol levels are linked to weaker memory performance during this age range.
Daily injections of patient autoantibodies in mice with injured paws led to increased pain sensitivity and microglial activation in brain regions. Blocking interleukin-1 receptors prevented or reversed these effects, suggesting an autoimmune contribution to CRPS development.
People with strong life purpose are more likely to accept health messages and experience less decisional conflict. A study found that those with a stronger sense of purpose have less activity in brain regions associated with conflict-processing, making it easier for them to make healthier choices.
A study found that metabotropic glutamatergic receptor 5 (mGluR5) availability may serve as a biomarker for suicide risk management in posttraumatic stress disorder (PTSD). Higher mGluR5 levels were associated with suicidal ideation and mood disturbances in individuals with PTSD.
The study identifies a distinct control architecture in brain networks, characterized by a distributed and overlapping control system that enables robustness against targeted attacks and high efficiency in switching between network states. This finding has broad implications for cognitive neuroscience and clinical applications.
Researchers mapped brain connectivity in 30 people to understand how different regions coordinate during tasks. The study aims to create novel strategies for AI-powered teaming environments, where robots can dynamically assist soldiers in completing tasks.
A new study assesses how large-scale patterns of brain activity relate to different cognitive systems, revealing variations between individuals. The research uses computational modeling to simulate brain activity and identify repeatable patterns in some cognitive systems.
A study by University of Arizona researcher Vicky Lai found that the brain's sensory-motor region is activated within 200 milliseconds of hearing an action-based metaphor. This suggests that this region plays a crucial role in comprehension, supporting previous findings from fMRI studies.
A USC Dornsife-led study has provided the first global network model of the inner workings of the hypothalamus, a critical part of the brain that controls fundamental behaviors and physiology. The study reveals novel associations with several diseases, including neurodegenerative diseases and behavioral disorders.
Researchers at MIT have developed a neural architecture search algorithm that can directly learn specialized convolutional neural networks for target hardware platforms in only 200 GPU hours. The algorithm uses 'path-level' binarization and pruning to reduce memory consumption and improve efficiency.
Research links seven vascular risk factors to differences in brain structure, particularly areas responsible for complex thinking. The study found stronger associations between smoking, high blood pressure, and diabetes with grey matter volume and white matter damage.
Deep brain stimulation (DBS) of the ventral capsule (VC) or anteromedial subthalamic nucleus (amSTN) reduced OCD symptoms to a similar extent, but produced distinct effects on specific symptoms. VC stimulation improved mood, while amSTN stimulation improved cognitive flexibility.
A study by University of Birmingham researchers found lower brain connectivity in 'night owls' compared to morning larks, leading to poorer attention, slower reactions and increased sleepiness. This can be particularly problematic for those forced to fit into a societal 9-5 working day that doesn't align with their natural rhythms.
A new study has shown that adults can learn a fictional writing system called HouseFont, which assigns images of houses to English phonemes. The research found increased brain activity in the visual word form area that predicted participants' reading speed, suggesting that learning a new writing system shapes the reading brain.
Researchers mapped inputs to ventral tegmental area dopamine neurons and found highly similar inputs across different cell populations. The study suggests a more random connectivity logic where inputs connect semi-randomly in regions to which the neurons project.