Articles tagged with Brain Structure
Research finds that female brains have narrower and less dense axons, making them more prone to damage from concussion. This leads to more severe cognitive deficits in females compared to males after a head injury.
A study published in PLOS Biology found that stressed participants were more likely to help the victim than punish the perpetrator in a simulated third-party intervention task. The researchers observed higher brain activation in regions linked to decision-making and mentalizing when stressed participants chose to help.
A new study using AI technology analyzed MRI scans from 471 men and 560 women, revealing differences in brain organization at a cellular level. The findings highlight the need for diversity in neurological research and may offer new insights into how psychiatric and neurological disorders develop differently in men and women.
A study by IBS researchers has identified the anterior cingulate cortex (ACC) as a key region responsible for sensory hypersensitivity associated with autism spectrum disorders. The team discovered that ACC hyperactivity and brain-wide hyperconnectivity contribute to sensory abnormalities in Grin2b-mutant mice.
A recent study in Saudi Arabia assessed the effectiveness of an educational program improving epilepsy care among caregivers. The intervention showed a significant decrease in knowledge gaps, with 23.2% having sufficient knowledge post-intervention compared to 60% before.
Researchers developed a new method to accelerate high-resolution ultrasound localization microscopy using deep learning, enabling faster and more accurate imaging of microvascular structures. The technique, called LOCA-ULM, improves spatial resolution and processing speed while maintaining sensitivity for functional imaging.
DZNE researchers aim to measure intricate brain structures with artificial intelligence, using 3D brain scans and data from the Human Connectome Project. The goal is to better understand disease processes and normal brain changes over time.
Researchers at University of Cologne's CECAD Cluster of Excellence discovered that mitochondrial fusion boosts new neuron plasticity. The study found that as new neurons mature, their mitochondria fuse to acquire elongated shapes, sustaining synaptic plasticity and refining brain circuits.
A traumatic brain injury quadruples the risk of developing dementia and neurodegenerative diseases like ALS. USC scientists used lab-grown human brain structures called organoids to study TBI's effects. They identified a gene, KCNJ2, that helps protect nerve cells against injury.
Researchers discovered that mature oligodendrocytes, critical for brain function, can survive for up to 45 days after a fatal trauma, defying the classical programmed cell-death pathway. This finding opens new avenues for understanding and potentially preventing damage caused by aging and neurodegenerative diseases.
A team of researchers has developed the world's first 3D-printed brain phantom, which can be imaged using dMRI. The brain model is made up of microchannels that mimic nerve cells in the brain, allowing for more accurate analysis and research into neurodegenerative diseases.
Researchers found that forming social bonds facilitates quicker and more frequent communication among group members, with neural activity aligning between leaders and followers. The study suggests a potential neurocognitive explanation for the hierarchical structure of human groups.
A neuroimaging study found no significant differences in brain structure or function between individuals reporting anomalous health incidents and matched control participants. The researchers aimed to investigate the neural basis of these incidents among US government personnel stationed internationally.
Researchers developed chronological age prediction models by analyzing gene expression changes in the prefrontal cortex, identifying genes associated with aging and potential mechanisms. The models showed high correlation with age and demonstrated female and male-specific differences.
Researchers analyzed molecular data from brain tissue and blood of individuals who committed suicide, identifying risk markers for novel therapeutic targets. The study found alterations in the prefrontal cortex and inhibitory neurotransmitters, highlighting potential new approaches for preventing suicidal behavior.
Researchers found that different areas of the brain start with a similar organization in early development, using a shared blueprint to guide neural growth. This suggests that neurodevelopmental disorders may act similarly across diverse brain areas.
Researchers at Brown University's Carney Institute for Brain Science discovered how the brain coordinates attention and filtering functions to perform complex tasks. The study found that multiple brain regions work together to adjust focus and filter out distractions, providing insight into human cognitive flexibility.
A study by researchers at UNC School of Medicine found that chronic cocaine use alters the functional networks in the brain, including the default mode network and salience network. This disruption can make it harder for individuals to focus, control impulses, or feel motivated without the drug.
A study has found a strong link between pesticide use and Parkinson's disease in the Rocky Mountain and Great Plains region. The research identified 14 pesticides, including simazine, atrazine, and lindane, that were associated with an increased risk of developing the disease.
A team of researchers created the first brain-wide map of prairie voles during mating and pair bonding, discovering 68 distinct brain regions active across seven circuits. The study found that male ejaculation elicits a profound emotional state in both males and females, coordinating the formation of a bond.
Researchers have developed a method to decode mouse neural activity, enabling accurate determination of location and direction within an open environment. This breakthrough could inform the design of intelligent machines that navigate autonomously without GPS or satellite guidance.
Delta opioid receptors play a crucial role in anxiety development, and research reveals its therapeutic effects in animal models. KNT-127, a DOP agonist, reduces anxiety-like behavior by suppressing glutamatergic transmission, offering new potential for treating anxiety disorders.
A study of 11,000 children found that maternal tobacco use during pregnancy is associated with enduring deficits in childhood neurocognition. Continued research on the link between maternal tobacco use and cognitive performance is needed.
A recent study published in Nature sheds light on how the brain's internal compass guides behavior, using fruit flies as a model organism. Three distinct groups of neurons enable communication between the compass and steering regions, translating signals into behavior to keep the fly moving in the right direction.
Researchers discuss recent advances in brain mapping, emphasizing the need to establish precise neuromodulation paradigms based on individual characteristics. Individualized brain mapping methods have evolved from manual labeling to staining techniques across multiple subjects.
A study of 205 adolescent football players and 70 noncontact control athletes reveals discernible structural and physiological differences in brain regions associated with mental health. These findings suggest a potential link between football playing and mental health outcomes.
Researchers found that the brain's pain modulatory system changes with age and gender, making females more sensitive to moderate pain as they get older. The study used fMRI scans to examine brain responses in men and women aged 30-86 and identified a key role for the descending pain modulatory system.
A study in rats found that excessive adolescent stress alters genes associated with energy metabolism, leading to behavioral problems and psychiatric disorders in adulthood. The prefrontal cortex's response to stress was also affected, suggesting a link between mitochondrial function and emotional regulation.
Researchers have identified a network of lymphatic vessels at the back of the nose as a major hub for CSF outflow to deep cervical lymph nodes. This discovery has significant implications for understanding and treating conditions related to impaired CSF drainage, such as Alzheimer's disease.
Researchers found that handwriting by hand increases brain connectivity, promoting better memory formation and encoding of new information. This discovery highlights the need for more handwriting activities in schools, potentially leading to improved learning outcomes.
Researchers have developed a novel optical neural network architecture that achieves nonlinear optical computation by precisely controlling ultrashort pulse propagation in multimode fibers. This approach streamlines the need for energy-intensive digital processes, achieving comparable accuracy with significantly reduced parameters.
A new brain pathway has been discovered linking motivation, addiction, and disease, with the cerebellum playing a crucial role. The basal ganglia and cerebellum are traditionally thought to function independently, but this connection may change our understanding of voluntary movements and conditioned learning.
Researchers extend spatially incoherent diffractive networks to perform complex-valued linear transformations with negligible error, opening up new applications in fields like autonomous vehicles. This breakthrough enables the encryption and decryption of complex-valued images using spatially incoherent diffractive networks.
A team of researchers created a 3D bioprinted brain blood vessel model to investigate the impact of blood vessel curvature on metastatic cancer development. The model revealed that increased blood vessel curvature correlates with heightened cancer cell adherence and extravasation.
A large brain imaging study discovered reduced grey matter volume across nearly all brain regions in individuals with Early Onset Psychosis, a critical period of brain development. The study provides unprecedented levels of detail about the illness and may assist in future diagnosis and track treatment effects.
A team of scientists used functional near-infrared spectroscopy (fNIRS) to measure brain activity in two key visual regions, the lateral occipital complex (LOC) and fusiform face area (FFA). The study found that fNIRS successfully measured LOC activity but had limitations in detecting FFA activity due to its depth. This research has th...
Researchers develop nanoparticles that selectively bind to activated astrocytes and microglia cells in the hippocampus of Alzheimer's patients, demonstrating increased nanoparticle transport across the blood brain barrier with age. The study provides valuable insights into advancing nanoparticle-based drug delivery for treating neurode...
A new study has identified a neural coding mechanism that allows for the transfer of information between perceptual and memory regions of the brain. This discovery challenges traditional understanding of brain organization and suggests that memory areas encode visual information in a 'photographic negative' format.
The study maps over 32 million cells in the mouse brain, describing their type, location, and molecular information. This atlas paves the way for a greater understanding of the human brain and development of precision therapeutics for mental and neurological disorders.
Researchers have mapped the lineage of neural stem cells in the superior colliculus, revealing an exceptional capacity to generate different types of neurons. The study also found that neural stem cells retain their ability to produce any type of neuron until the end of development.
Researchers at Linköping University used advanced diffusion MRI to examine the brains of patients with persisting symptoms after COVID-19 and found differences in white matter structure. This study provides new insights into the underlying mechanisms of post-COVID neurological problems.
A study found increased brain inflammation and structural changes in special operations personnel exposed to blasts, potentially increasing the risk of long-term brain-related disease. The research suggests that repetitive exposure to low-level blasts may cause brain injuries and highlights the need for better protective measures.
A new study found that pickier dogs exhibit distinct brain responses when rewarded with higher-quality food, which influences their motivation. The research used behavioral observations and neuroimaging techniques to investigate the relationship between food quality and dog behavior.
A recent study published in Nature Communications has identified a key brain molecule responsible for triggering overconsumption of comfort foods after stressful events. The lateral hypothalamic proenkephalin neuron plays a crucial role in driving threat-induced eating associated with negative emotional states.
Researchers at the Princess Máxima Center and Hubrecht Institute developed a new cortex organoid that more accurately captures essential features of the human brain. The mini-organs can be used to model pediatric brain tumors, offering potential targets for treatment.
During pregnancy, distinct pools of stem cells in the adult brain are activated, giving rise to specific types of olfactory bulb neurons that enable mothers to recognize their own pups. These new neurons are temporarily formed and disappear after birth, highlighting the brain's ability to adapt to specific needs.
A new neural circuit has been discovered in the brain that produces a strong sense of discomfort when activated. The study found that the subthalamic nucleus, which controls voluntary movements, also plays a role in the development of depression.
A recent study found that people living in areas with high levels of fine particulate matter have a 56% greater risk of developing Parkinson's disease. The Mississippi-Ohio River Valley and parts of Texas, Kansas, and eastern Michigan were identified as regions with higher rates of the disease.
A new method called TWC-Swin effectively restores holographic images even under low spatial coherence and arbitrary turbulence, surpassing traditional convolutional network-based methods. The study demonstrates strong generalization capabilities, extending its application to unseen scenes.
Researchers found that working memory was the most significant predictor of writing ability among English learner students. Cognitive functions such as phonological awareness and oral language development were also important, but only working memory consistently predicted higher scores in writing.
A new method using deep learning can provide as much information from brain images taken with CT as images captured with MRI, enhancing diagnostic support for conditions like dementia and other brain disorders. The software has been trained on 1,117 people and shows promise in diagnosing normal pressure hydrocephalus.
A recent study discovered two subgroups of people with idiopathic generalized epilepsy, one experiencing highest incidence during sleep and the other during daytime. The researchers found that either dynamics of cortisol or sleep stage transition explained most of the observed distributions of epileptiform discharges.
Researchers created the world's largest primate brain-wide atlas using single-cell technologies, revealing over 4 million cellular profiles. The study provides a comprehensive multimodal molecular atlas to explore links between molecules, cells, brain function and disease.
Researchers discovered a non-invasive eye exam that can detect early signs of cognitive decline and cerebral small vessel disease, a major contributor to vascular dementia. The study found connections between altered retinal blood flow and changes in brain structure associated with the condition.
The University of Minnesota Medical School has received a $16 million grant from the NIH BRAIN Initiative to create detailed maps of brain connections. This project aims to better understand how complex neural pathways generate human behaviors and develop treatments for brain disorders.
Researchers at Brigham and Women's Hospital have identified a common brain network associated with substance use disorder, regardless of the substance used. The finding could lead to targeted neurostimulation therapies for addiction, such as transcranial magnetic stimulation.
A study published in Brain, Behavior, and Immunity found that inflammation-related genes play a significant role in depression. The researchers discovered correlations between immune-related genes, DNA methylation patterns, and brain structure abnormalities in patients with major depressive disorder.
Researchers used electrical noise stimulation to improve mathematical skills in participants with lower brain excitability, but found no benefits for those with high excitement levels. The study suggests that this non-invasive technique may be more effective for individuals who need extra stimulation to learn.
Researchers found that individuals with higher body mass indexes have impaired connections between the hippocampus and hypothalamus, leading to an inability to control eating habits. The study suggests that targeting this brain circuit may lead to new treatments for obesity and related disordered eating conditions.
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.