Articles tagged with Brain Structure
Researchers have discovered a new, non-invasive diagnostic method for Alzheimer's disease (AD) using advanced brain imaging technology. The technique analyzes specific brain chemical changes in the hippocampal region of the brain, providing a signature of early AD stages.
A new study finds that prenatal exposure to the insecticide chlorpyrifos may lead to long-term changes in brain structure, potentially resulting in cognitive deficits. The study used MRI to evaluate the brains of 40 New York City children and found associations between higher exposure levels and brain anomalies.
Aesthetic experience activates brain regions associated with inward contemplation and self-assessment, according to NYU researchers. The study's findings suggest that artistic appeal may be universally experienced, despite individual differences.
A new method using florbetaben PET scans may help diagnose Alzheimer's disease earlier by detecting beta-amyloid plaques in the brain. The study found a sensitivity of 77% and specificity of 94% compared to post-mortem diagnosis, with even higher accuracy for visual assessments.
Researchers found structural differences in brains of healthy carriers of the CNTNAP2 gene variant, which may contribute to increased vulnerability for autism. The study suggests that genetic variations can affect brain connectivity and signaling, leading to functional abnormalities characteristic of neuropsychological disorders.
Researchers describe three quantitative MRI techniques to characterize white matter properties, shedding light on aging, disease, and gender differences in brain function. These methods show promise in multiple sclerosis, depression, and human development.
A study by Australian researchers found that heart failure is associated with a decline in people's mental processes and a loss of grey matter in the brain. This can lead to difficulties in remembering medication and carrying out instructions. The study suggests that simpler approaches to self-management may be required.
A study published in Nature Neuroscience found that synchronized brain oscillations between the frontal and visual areas of the brain are crucial for remembering visual information over a short period. The more synchronized the activity was, the better animals could remember images.
Researchers found that low iron levels in adolescence can affect the brain's physical structure, leading to changes in brain regions vulnerable to neurodegeneration. High iron levels during adolescence may also impact brain wiring and myelin production, potentially increasing the risk of diseases like Alzheimer's and Parkinson's.
Acquiring London's complex street layout causes structural changes in the brain and improvements in memory, particularly for capital-based information. This suggests that even adult life can lead to brain plasticity and adaptation through learning.
A study by Eleanor Maguire found that taxi driver training increases gray matter in the hippocampus, a brain area responsible for memory and spatial navigation. The brain's plasticity allows it to adapt to new tasks, even in adulthood.
A new study found that healthy individuals with more gray matter in their decision-making brain region can better evaluate rewards and consequences. In contrast, cocaine addicts have reduced gray matter volume in the same area, leading to impaired reward processing and increased risk of addiction.
Researchers find synesthesia is an authentic phenomenon with sensory basis, common among artists and novelists. The 'synesthesia gene' may have evolved to make highly creative individuals more prone to link unrelated ideas.
A recent study reveals that individuals with grapheme-color synesthesia exhibit increased activity in the brain's visual cortex, a finding that provides insight into the neural mechanisms underlying conscious awareness. The research also suggests that the brains of synesthetes may be more excitable than those without the condition.
A study published in Nature Neuroscience reveals that fair sanctions are orchestrated by the interaction between two frontal brain regions: the dorsolateral prefrontal cortex and the ventromedial prefrontal cortex. This communication is crucial for punishing norm violations at one's own expense.
Measurable changes in brain function and communication between regions may indicate disease progression in early HIV infection. Cognitive decline is associated with reduced survival time and increased risk of death.
A study published in Neuron found that brain regions beyond the reward centers engage when playing games, suggesting a more widespread role for reward processing in the brain. The research used multi-voxel pattern analysis to identify patterns of brain activity associated with wins and losses.
Research finds speaking and understanding speech use same areas of the brain, with no involvement of motor regions when listening, contradicting previous assumptions. The study suggests that language-related problems may not always be independent, and offers new avenues for treatment.
Research confirms fast ripples as a reliable marker for the brain region responsible for seizure activity in children. Resection of brain regions with fast ripples and seizure-onset zones may lead to better seizure outcomes, suggesting a new surgical approach to improve treatment.
New imaging tools and techniques are advancing our understanding of brain structure and function, particularly in relation to neurological disorders. These breakthroughs are contributing to insights into healthy brain development and adult life, as well as the complex networks that link brain activity.
Researchers found that domain expertise insulates experts from biases caused by monetary favors, using functional MRI scans. Non-experts, however, are more susceptible to such biases, which can affect their judgments in various areas, including politics and medicine.
Researchers used internet traffic modeling to study brain networks, revealing that timing patterns of information emission are indicative of info flow. This method can be applied to study neurological development, aging, and disease, indicating a potential new approach in neuroscience.
Researchers found that higher cell chatter in affected regions boosts amyloid beta levels, contributing to plaque formation. Studies on mice suggest reducing activity in these regions may help prevent Alzheimer's plaques.
A recent study published in PLOS ONE found that the human brain is wired to recognize familiar objects, including faces and animals, in their typical upright orientation. The research used fMRI scans to measure brain activity in response to camouflaged faces and animals, revealing a strong bias towards recognizing upright visuals.
Researchers at UBC discovered that real-time fMRI feedback significantly enhances people's ability to control their thoughts. By monitoring the brain region responsible for higher-order thoughts, participants could effectively train their brains and improve mental focus.
NJIT professor Bruce Bukiet predicts the Major League Baseball winners using his mathematical model, which takes into account various factors such as team performance and player statistics. His predictions aim to promote the power of math and show how it can be used to analyze complex issues.
A study found that individually tailored public health messages activate brain regions related to self-awareness in smokers, leading to increased quit rates. The research suggests that these tailored messages are more effective than one-size-fits-all approaches.
Researchers found that the brain area responsible for reading is active in blind individuals who read Braille, challenging the idea of sensory specialization. The study suggests that the brain is a task-oriented system that can adapt to new tasks without prior experience.
Researchers at UCLA have identified a molecular program that drives brain cell connections after stroke, activating genes to form new connections. The program differs between young and aged adults, with older brains slowing down recovery through simultaneous activation of repair and collapse genes.
Researchers at the University of Zurich studied soccer fans' neural responses to ingroup and outgroup suffering, finding that brain regions associated with empathy for others' pain are activated when witnessing an ingroup suffer. This correlates with a greater willingness to help, whereas watching an outgroup suffer leads to decreased ...
Researchers studied zebrafish brain activity to understand how the circadian clock and sleep affect synapse numbers, identifying a gene involved in regulating these changes. The study found that synaptic plasticity is recharged at night, benefiting memory and learning.
Neuroscientists found that cortical rhythms can effectively rally groups of neurons in widely dispersed regions of the brain to engage in coordinated activity. The study used data from four macaque monkeys and showed that the timing of electrical spikes was synchronized with brain rhythms occurring in distinct frequency bands.
Researchers at WashU Medicine have developed a new method to track brain development in children using functional MRI scans, which may shed light on psychological and developmental disorders. The approach uses mathematical analysis to identify abnormal brain function, enabling early detection and potential treatment.
Depression is associated with dysfunction of specific brain regions involved in cognitive control and emotional response, particularly the medial prefrontal cortex. Persistent abnormalities after treatment may indicate a need for complementary therapy.
A study found that moderate exercise, such as walking, enhances brain circuit connectivity, combating age-related declines in brain function. This improved connectivity is associated with better performance on cognitive tasks like planning, prioritizing, and multitasking.
Researchers at Harvard University found that humans use the same brain circuits for complex moral decisions as those used in mundane choices. The ventromedial prefrontal cortex tracks expected moral value, integrating information on number of lives saved and probability of success. This discovery advances our understanding of how peopl...
A new study found that menstrual cramps can cause alterations in the brain's gray matter, even when pain is not present. Researchers discovered abnormal changes in specific brain areas involved in pain transmission and regulation, suggesting that the adolescent brain may be vulnerable to menstrual pain.
A major study published in the New England Journal of Medicine has found that deep brain stimulation (DBS) is an effective treatment for Parkinson's disease, with similar improvements in motor function regardless of the targeted region. The study also revealed small differences in non-motor effects such as mood and cognitive function.
Researchers disrupted activity in the right temporo-parietal junction using transcranial magnetic stimulation to impair subjects' ability to make moral judgments requiring understanding of others' intentions. This finding highlights the critical role of the TPJ in making moral judgments.
Researchers identified a distributed neural system for general intelligence, with specific brain regions and connections linked to performance on various tests. The study's findings support an existing theory about intelligence as a whole-brain function, integrating different processing abilities such as working memory.
Children with poor reading skills showed increased brain connectivity after intensive training, making significant gains in reading and potentially leading to improved treatments for developmental conditions like autism. The study suggests that behavioral training can enhance brain function and improve communication between brain regions.
A brain scan study found that active cocaine abusers can suppress activity in brain regions linked to drug craving when asked to inhibit their response. This suggests that clinical interventions designed to strengthen inhibitory responses could help prevent relapse and improve treatment outcomes.
A NJIT engineer has discovered that particles disperse rapidly on liquid surfaces due to the oscillation of particles in a phenomenon known as repulsive hydrodynamic force. The smaller the particles, the faster they move, with nanometer-sized particles reaching speeds of up to 167 kilometers per hour.
A study published in Proceedings of the National Academy of Sciences identified a brain region that strongly reacts to emotional faces and voices. The research found that the posterior superior temporal sulcus responds supra-additively to simultaneous visual and auditory emotional stimuli.
Researchers discovered that tropical paper wasps' brain structures alter to tackle complex tasks, integrating sensory inputs. The brain's dendrite network grows in complexity as the wasps transition from nest work to foraging, adapting to new environments.
Researchers discovered that learning a new task alters the brain's spontaneous activity patterns, particularly in regions involved in attention and visual processing. This 'anti-correlation' between brain areas improves task performance and facilitates future skill retrieval.
Researchers found social cognition brain activity in children as young as 6 years old, similar to adults. By age 11, the 'right tempero-parietal junction' took on a more specialized role in thinking about others' thoughts.
A new neuroimaging study finds that honest people show no additional neural activity when telling the truth, implying that extra cognitive processes are not necessary to choose honesty. In contrast, dishonest individuals exhibit increased activity in control-related brain regions when tempted to lie.
Researchers found distinct brain structure differences between queens and workers of eight New World social wasp species, linked to their respective social roles. Brain regions responded to specific challenges, such as vision and chemical communication, revealing the importance of environment in shaping brain architecture.
Researchers at MIT found that neurons in the prefrontal cortex fire in unison and send signals to the visual cortex to generate high-frequency waves associated with attention, learning, and consciousness. This neural synchrony enables communication between distant brain regions.
A brain-imaging study found that cocaine users show reduced activity in areas involved in monitoring behavior and regulating emotions, suggesting these impairments may underlie addictive vulnerability. Improving these functions could help addicted individuals resist drugs.
A new study reveals that child brains are differently organized than adult brains, but still capable of performing complex cognitive tasks. Researchers found that young brains have localized networks based on physical proximity, which transition to long-distance networks centered on functionality as children mature.
Researchers use MRI to identify brain regions that activate while at rest, potentially leading to new diagnostic tools for ADHD and other mental health disorders. By analyzing brain activity in typically developing subjects versus those with disorders, the team aims to pinpoint distinct functional differences.
A new study found that neurons in the visual word form area of the left visual cortex prefer individual real words over pronounceable nonsense words. This discovery supports experience-driven tuning of neurons to real words and provides evidence for neural plasticity beyond lower-level representations.
Research in PLOS ONE identifies early interactions between vision and language domains during reading, with the speech motor areas active simultaneously as words are processed. This finding has potential clinical applications for individuals with developmental dyslexia and acquired reading disabilities.
Studies using brain imaging have identified distinct regional vulnerabilities within five intrinsic networks, suggesting a class-wide phenomenon of network degeneration. These findings support the hypothesis that spatial patterning of disease relates to structural or physiological aspects of neural network biology.
Researchers aim to create a whole-brain circuit map in the mouse brain within two to three years, providing insights into neurodevelopmental illnesses. The project would involve tracing inputs and outputs of each area using standardized protocols and technologically feasible techniques.
Scientists have long debated the function of microsaccades, but researchers at the Salk Institute found they are actively controlled by the superior colliculus. The study reveals that individual neurons in this area are highly specific about which microsaccade directions and amplitudes they command.
A new study from McGill University finds that MCH neurons are activated during sleep and could be important in regulating the sleep state. The study provides deeper understanding of the sleep-wake cycle and vital insight into the basis of sleep disorders such as narcolepsy.
Researchers found a brain region that facilitates rapid switching between learning and remembering, improving learning efficiency. The study used fMRI to investigate the neural mechanisms underlying this process, revealing complex interactions between different brain areas.