Articles tagged with Brain Structure
Researchers from the University of Turku found that hypnosis shifts brain regions into a less synchronized state, allowing for more independent action. This finding provides new insights into how hypnosis modifies neural processing and may explain its effects on behavior and perception.
A meta-analysis of 17 studies found that participants could regulate neural activity in targeted regions using rtfMRI-NF, with a moderate impact during training and increased impact later without feedback. The study suggests a positive impact on brain and behavioral outcomes, but more research is needed to determine its effectiveness.
Researchers created a detailed brain map of C. elegans, uncovering modular structure and variation in neural circuits that complement core circuitry found across animals. The study's findings suggest the worm's brain processes information through layers, with convergence of different neural circuits enabling integration and coordination.
A new study published in EPJ B reveals that inhibitory interneurons make up 20% of the brain's circuitry required for pain processing. The researchers used graph theory to model the brain's complex networks, uncovering a specific configuration of interneurons crucial for modulating information transmission.
Researchers have developed a new brain stimulation technique that can predict individual responses to treatment, paving the way for personalized therapies. The technique uses machine-learning models to analyze brain activity across multiple regions and adjust stimulation doses in real-time.
A new study by researchers in Japan has examined the brain activity of thirty programmers of diverse levels of expertise, finding that seven regions of the frontal, parietal and temporal cortices in expert programmer's brain are fine-tuned for programming. Expert programmers' brains show enhanced cortical representations of source code.
The DEEPER project develops new photonic technologies to access deep brain regions and reveal molecular and cellular dysfunctions underlying neurological disorders. The project aims to develop minimally invasive tools for treating diseases such as Alzheimer's, addiction, and depression.
Researchers have identified a stable biomarker for ADHD in brain connectivity, allowing for near-perfect detection of the disorder. A machine learning model achieved 99% accuracy in identifying adults diagnosed with ADHD as children.
Researchers at Max-Planck-Gesellschaft found a neural circuit in zebrafish that enables them to focus on one stimulus over others, allowing for escape from predators. The circuit involves the tectum and nucleus isthmi brain regions.
A team of researchers has identified a functional 'rich club' of brain regions that orchestrate the global workspace, a concept proposed by psychologist Bernard Baars in 1988. The study, published in Nature Human Behavior, used fMRI data from over 1,000 participants to reveal unique brain regions coordinating information from various s...
A study by University of Pennsylvania researchers found that humorously presented news clips enhance memory retention and sharing among young adults, making them more likely to engage with politics. This social nature of comedy is linked to increased brain activity related to thinking about others' opinions.
In adult brains, astrocytes eliminate excessive and unnecessary synapses to maintain plasticity. This process is crucial for controlling synapse numbers and neural circuit maturation.
Researchers identified a novel coupling mechanism linking neuronal networks using human intracerebral recordings, revealing high-frequency oscillations synchronize across multiple brain regions.
A study of 40,000 adults found that lonely individuals have distinct brain regions and networks, including a stronger default network and preserved fornix nerve fibers. This could help prevent neurological disease and develop better treatments for loneliness.
Researchers found that factual language evokes stronger brain responses than possible language, highlighting the power of fact-based communication in processing information. The study's findings suggest that our brains have a specialized representation for factual information, which is distinct from those for possibilities.
A new study published in the Proceedings of the National Academy of Sciences shows that observing safe peers can encourage young people to make healthier decisions. The research team found that substance-naïve teens were more likely to follow their safe peers' choices, leading to safer outcomes.
A new chip has been developed that can be surgically implanted to read neural signals and stimulate the brain with both light and electrical current. The chip is fully wireless and trimodal, allowing for precise control over targeted regions of the brain.
A long-term study of over 1,000 people found that childhood lead exposure was associated with structural brain changes and a significant loss of IQ points by age 45. The study revealed subtle but detectable differences in brain structure, including reduced cortical surface area and hippocampal volume.
Empathy and perspective-taking are two essential social skills that enable us to form connections with others. A recent study reveals that both abilities are processed in the brain by a 'main network' specialized in empathy or changing perspective, which is activated in every social situation.
Researchers discovered that the anterior cingulate cortex is involved in using mental models to simulate the future and make decisions. The brain structure encodes multiple aspects of decision-making, including the likelihood of a specific outcome.
Researchers discovered a specific brain region monitors food preferences as they change across thirsty and quenched states. By artificially manipulating neurons in the ventral pallidum, researchers were able to shift food choice preferences from a desired treat to a plain staple.
A new model of human brain networks offers a new tool for exploring individual differences in brain networks, critical for classifications of brain disorders and disease. The model highlights ongoing conversations between brain structures, providing new insights into human behavior and cognition.
A study by researchers at Ben-Gurion University found that a neural subnetwork of connected brain regions correlates with future weight loss. The team identified the stomach basal electric rhythm as a key factor in weight loss, suggesting that visual information may play a role in triggering eating.
Researchers at UCI will examine molecular 4D nucleome changes in the human hippocampus during aging, with a focus on physical activity's effects. The team aims to produce multi-omics cell atlases to understand chromatin organization and function in brain aging.
A study published in Frontiers in Neuroscience found that musically trained children outperform their non-trained peers in attention and working memory tasks. The research suggests two underlying mechanisms: domain-specific auditory encoding and domain-general attention control.
Researchers have developed an experimental setup allowing them to conduct fMRI studies on awake pigeons, investigating cognitive processes for the first time. The results show that even simple tasks elicit widespread brain activity, paving the way for more complex investigations into avian intelligence.
Researchers developed a complex physical exercise protocol to stimulate different motor and cognitive skills simultaneously, restoring brain regions associated with freezing of gait in advanced-stage Parkinson's disease patients. The protocol reduced symptoms by 60% and improved brain plasticity, providing new hope for treatment.
Infants as young as two years old exhibit increased brain flexibility, a key factor in cognitive development, according to UNC-Chapel Hill researchers. This emerging neural ability enables early learning of new motor skills and supports the maturation of higher-level cognitive processes.
Infants exhibit increased brain activity and neural flexibility from birth, indicating early development of higher-level brain functions. This emerging flexibility is positively associated with reading ability, academic success, and creativity.
Researchers identified a new role for bi-directional connections in accelerating communication between brain regions. By creating loops, these connections can establish resonance and amplify signals, reducing the need for synchronization and increasing network efficiency.
A study published in Neuron explains how the brain generates representations of unitary odor objects. The research team used a combination of brain imaging and models to discover clustered representations of mixtures and groups of odors that are conserved across individual flies.
A study by Matthew Smith and colleagues found that changes in brain activity are linked to shifts in internal states, impacting decision-making. The researchers' discovery could inform understanding of mental conditions like ADHD and improve BCI design.
Scientists selectively bred zebrafish to exhibit distinct personality traits, finding that brain activities soon changed and new brain regions were activated. The study suggests a rapid pace of personality trait changes and potential implications for human behavior.
Research suggests autistic men have greater excitability in the medial prefrontal cortex, affecting social cognition and self-reflection. Women with autism exhibit a more intact response, associated with better camouflaging of social difficulties.
A study published in Hormones and Behavior found that oral contraceptive use affects brain structure and function, particularly in women who start taking them during puberty or adolescence. This can lead to altered stress response and changes in working memory processing.
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.
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 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.
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.