Articles tagged with Neuroimaging
Researchers found that undamaged neurons do not change their function after a stroke, contradicting the 're-mapping' hypothesis. Surround-responsive cells, which react to neighboring whiskers, also failed to take over damaged neurons' functions.
Researchers linked repeated head impacts in youth football with changes in brain imaging, highlighting the need for reduced head impact drills during practice. The study used diffusion tensor imaging and biomechanical data from helmet-mounted sensors to examine the effects of head impacts on young athletes.
Researchers analyzed brain scans of 193 COVID-19 patients, finding a link between brain imaging and the virus's presence in cerebrospinal fluid. The study suggests hyperintense lesions and leptomeningeal enhancement are indicative of inflammation rather than infection.
Researchers used structural brain imaging to detect developmental effects of linguistic and cognitive stimulation on infant brains. They found that high-quality educational experiences in early childhood were associated with increased brain size, particularly in males.
A new imaging technique, 3D amplified MRI (aMRI), visualizes the brain's movement in real-time and in stunning detail. This method holds diagnostic potential for detecting obstructive brain disorders and aneurysms, which could lead to better treatment strategies.
A large study of 11,679 nine- and ten-year-old children found potentially life-threatening brain abnormalities in 1 in 500 children and minor abnormalities in 1 out of 25. The study aims to save lives by reviewing MRI scans for incidental findings.
Researchers developed a new analysis system to study brain function and diseases using 3D artificial brain models. The system allows for precise non-destructive stimuli and real-time measurement of neural signals, providing insights into functional connections between brain cells.
A study of 38 children found that neurological complications of COVID-19 often resemble immune-mediated patterns of disease involving the brain, spine, and nerves. Most cases had mild or no symptoms, but some developed severe conditions such as myelitis and quadriplegia.
Scientists have created detailed maps of brain blood vessel clusters, revealing that small blood vessels compensate for varying energy requirements. The study provides novel insights into the distribution of oxygen and sugar to different brain regions, shedding light on how brains are kept nourished.
A UK-based study using diffusion weighted imaging and machine learning successfully classified common types of pediatric brain tumors, enabling faster and more accurate diagnosis. This non-invasive method has the potential to treat childhood brain tumors more efficiently with favorable outcomes.
Researchers used a novel imaging technique to study motor deficits in ALS, revealing asymmetrical movement patterns and limited capacity. The technique, called DECALF, captured three-dimensional motion of zebrafish in real-time.
Researchers at Boston University School of Medicine are developing a novel brain imaging technique to detect chronic traumatic encephalopathy (CTE) in living patients. A two-year study involving former NFL players and controls aims to identify the tau protein associated with CTE using a second-generation tau PET tracer.
Researchers analyzed MRI data from 1203 HIV-positive individuals across 5 continents, finding smaller brain volumes associated with lower white blood cell counts. The study highlights the importance of understanding how HIV infection affects the brain, particularly in the context of aging and treatment.
Research estimates that one in three women experience intimate partner violence and up to 90% suffer head trauma. However, data is scarce on the cognitive and psychological effects of this trauma. A new international effort aims to understand the ramifications of injuries and develop personalized treatment strategies.
Researchers from Osaka University developed a new method for analyzing brain tissue with mass spectrometry imaging, enabling the identification of biochemicals at high spatial resolution. This technique may help diagnose brain diseases such as cancer by providing molecular information in high-resolution images.
Scientists at Durham University have discovered a new type of brain cell called Vector Trace cells, which can store maps of places we've been and track the distance between objects. This discovery could lead to earlier diagnosis and treatment of Alzheimer's disease.
Drs. Kelil and Jaimes will investigate personalized breast cancer risk assessment and fetal diffusion tensor imaging to improve conventional risk prediction models and characterize normal brain development in fetuses with congenital heart disease. Their studies aim to harness cutting-edge MRI processing tools to correct for fetal motion.
A novel form of an Alzheimer's protein found in spinal fluid indicates what stage of the disease a person is in and tracks with tangles of tau protein in the brain, which are toxic to neurons. The discovery could lead to better diagnostics and accelerate efforts to find treatments for Alzheimer's disease.
A prototype 16-channel head AIR coil from GE Healthcare has been shown to perform better than a conventional 8-channel head coil for in vivo whole-brain imaging, but not as well as a 32-channel coil. The coil's lightweight and flexible design exhibits improved electrical characteristics that could lead to future design improvements.
A Northwestern University study shows how advanced imaging technology can pinpoint the cause of nerve damage in COVID-19 patients. The imaging techniques include ultra-high-resolution ultrasound and MR neurography, which help localize where the problem is and assess the severity of nerve damage.
Dr. Olga Boukrina receives a $10,000 grant to study reading deficits in stroke survivors and develop personalized treatment for aphasia. Her ongoing research aims to identify markers that can help clinicians detect reading problems early in rehabilitative care.
Researchers at Massachusetts General Hospital have created a compact, low-power 'head only' MRI scanner for brain imaging. The device can be mounted in ambulances or clinics and emits less noise than traditional scanners.
Georgia State University researchers have developed a software tool called COINSTAC, which allows for local data analysis and sharing of results, protecting patient privacy and anonymity. The platform is designed to be compatible with deep learning models, enabling the training of analyses on decentralized databases.
A new brain imaging technology, BrainPhys, has been developed to support optimal neuronal function and viability in live imaging experiments. This breakthrough could lead to better personalised medicine for brain disorders such as Parkinson's, brain cancer, and childhood dementia.
Military personnel with extensive occupational blast exposure showed significant differences in brain imaging measures, including increased cortical thickness and neural inflammation. The study provides insight into the functional and structural neuroimaging alterations occurring in this population.
Research identifies commonalities in COVID-19 patients' brain activity, highlighting potential long-term effects on older males. Abnormal EEG readings suggest permanent brain damage, prompting the need for comprehensive care including brain imaging.
A new radiolabeled molecule, [18F]3F4AP, shows promising results in detecting and characterizing brain injury. The tracer binds to potassium channels exposed in demyelinated neurons, making it a potential tool for imaging multiple sclerosis and other neurodegenerative conditions.
A University of Maryland biologist has been awarded $1.5 million to develop new tools for studying brain mapping techniques. The project aims to create a comprehensive molecular map of synapses during development, aging, and disease, which could lead to potential treatments for neuropsychiatric disorders and other cognitive functions.
A patient with akinetic mutism, a rare condition causing temporary paralysis and speech absence, experiences a remarkable recovery after taking a sleeping pill. Brain scans reveal overactive brain regions that can be suppressed by the medication, allowing for temporary speech and movement.
A novel functional class of cortical neurons, known as holistic bursting cells, has been discovered to represent learned complex objects as wholes rather than parts. These cells exhibit a unique mode of high-rate, prolonged burst firing response to trained sounds, including chords consisting of multiple pure-tones.
Researchers are combining different types of brain imaging data to capture patterns indicative of brain disorders. The goal is to develop a compact framework to map brain disorders, providing a signature that tells us how mental illnesses impact the brain.
A Yale University study finds that the brain takes time to normalize after abstaining from alcohol, making 'one day at a time' an effective recovery strategy. The study also suggests potential medications to aid in long-term abstinence.
A recent study reveals the hierarchical representation of color in the brain, from cone-activation signals to isotropic hue representation. The study found that different areas of the cortex process color information in a progressive manner.
A new deep learning methodology called Brain-NET has been developed to accurately predict a person's level of expertise in surgical motor skills based solely on neuroimaging data. This technology has the potential to streamline the surgeon certification process, enabling real-time score feedback and remediation or training.
The EBRAINS human brain atlas is a comprehensive digital map of the cellular architecture, showcasing 250 structurally distinct areas based on analysis of 10 brains. This atlas enables researchers to better understand brain functions and mechanisms of diseases.
Research published in the Journal of Neurology Neurosurgery & Psychiatry found that women smokers are four times more likely to have unruptured brain aneurysms than non-smokers. High blood pressure further increases the risk, with smokers being seven times more likely to harbour the condition.
A pre-brain surgery test using navigated repetitive transcranial magnetic stimulation (nrTMS) accurately maps language centers in patients with brain tumors not involved in these areas. The method's accuracy varies depending on tumor involvement, but it shows promise for improving surgical planning and patient outcomes.
The American Journal of Roentgenology is implementing an author-centered peer-review system to streamline the submission process and provide rapid initial decisions. The journal is also rapidly publishing accepted manuscripts as Online First, expediting timely research for radiologists and allied scientists.
Research on brain-damaged patients with distorted perception reveals neural processing can occur despite lack of awareness. The study's findings have significant implications for theories of human visual awareness and suggest a reevaluation of the relationship between complex cognitive processing and awareness.
Researchers developed ribosome tethering tools to image neural circuits with greater precision. This allows for direct visualization of neuronal activity, reducing background fluorescence and spurious signals from surrounding nerve fibers.
KAIST researchers developed an algorithm for automated 3D brain imaging data analysis, enabling precise and quantitative mapping of complex neural circuits. The new technology allows for accurate comparison of brain data from different animals and improves the accuracy and consistency of analysis results.
Scientists developed a wearable brain scanner that can scan the entire brain, allowing researchers to track electrophysiological processes involved in mental health problems. The device tracks brain activity with millimetre accuracy, enabling new possibilities for scanning children and epileptic patients.
Researchers mapped 88,047 individual cells across 33 brain regions in humans, chimpanzees, macaques, and bonobos to identify distinctive brain regions that underwent faster evolution. The study found differences in gene expression between human oligodendrocytes and astrocytes compared to other primates.
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.
A study published in Radiology reveals that 59% of COVID-19 patients reported an altered mental state, while 31% experienced stroke. The findings suggest that physicians can recognize 'red flags' earlier and potentially provide earlier interventions for patients.
Researchers have developed a new imaging tool that detects widespread synaptic loss throughout the brain in early stages of Alzheimer's disease. This breakthrough enables scientists to identify areas of specific damage and monitor disease progression.
A new high-resolution 3D map of the mouse brain has been published, providing a reference atlas for the neuroscience community. The map enables whole-brain studies and improves research by allowing researchers to precisely co-register different types of data, enabling bigger-picture views and comparisons.
A new imaging technique developed by Cornell scientists allows researchers to see into a live adult zebrafish brain, shedding light on brain structure and function. The breakthrough enables studies on human brain disorders like autism, potentially leading to new treatments.
A new study uses AI to identify a specific genetic mutation in glioma tumors, achieved with over 97% accuracy. The technology could simplify the process of detecting enzyme mutations and deciding on appropriate therapy, potentially revolutionizing brain cancer treatment.
Researchers have found a precursor to the human language pathway in living primates, illuminating an earlier evolutionary origin of at least 25 million years. The study reveals a segment of the language pathway that interconnects the auditory cortex with frontal lobe regions, important for processing speech and language.
Researchers have created a device that uses sound waves to produce high-resolution images of the human brain, potentially revolutionizing brain imaging. The technology could be suitable for continuous monitoring of high-dependency patients and overcome obstacles with current MRI methods.
A retrospective study found that patients who underwent regular surveillance imaging after surgery had similar median survival rates to those who only returned when they felt symptoms of recurrence. The results suggest less frequent imaging could improve patient convenience and reduce costs.
Researchers at Yale University found a unique brain signature associated with pro-social and anti-social decisions in monkeys. Monkeys prefer to drink alone when faced with the option of sharing fruit juice with another monkey.
A brain imaging study found that PTSD patients have a deficiency in mechanisms that suppress and regulate memory activity, particularly in the hippocampus. The study suggests that these dysfunctioning systems contribute to the persistence of intrusive memories.
A new study analyzing MRI scans of individuals with 22q11.2 deletion syndrome found significant brain volume differences compared to control groups, including lower volumes in specific structures and higher volumes in others. The study provides a unique window into how psychiatric problems develop over time.
Researchers have identified several potentially useful breast cancer biomarkers that indicate the presence and risk of malignancy. PET/MRI imaging revealed differences in biomarkers between healthy contralateral breast tissue of patients with malignant and benign breast tumors.
A multicenter study found that both simple and advanced computed tomography (CT) can accurately predict which stroke patients will benefit from endovascular thrombectomy. Patients with favorable imaging profiles on both CT and CT perfusion had higher odds of receiving endovascular therapy and improved functional independence rates.
A new photoacoustic tomography technique aims to improve the detection and measurement of hypoxic-ischemic brain injuries in preterm newborns without sedation or radiation. The technology has the potential to revolutionize neonatal brain imaging management, enabling earlier treatment and improved outcomes for patients.
A study found that Italian and English speakers with primary progressive aphasia experience different speech and reading difficulties due to their native languages. Italian speakers tend to produce simpler sentences but struggle with pronunciation, whereas English speakers have more trouble pronouncing words.
Scientists at TU Dresden used a method to stimulate neural stem cells, leading to increased neurons and improved cognitive function in old mice. This study suggests that boosting stem cells may be a promising approach to rejuvenate the brain and counteract aging-related cognitive impairments.