Articles tagged with Connectomics
A large multi-site study has found a link between brain connectivity and grey matter atrophy caused by certain types of epilepsy. The study used big data analysis to accurately predict damage to grey matter over time.
Researchers developed a geometric network model to study the multiscale organization of the brain, finding that layers at different resolutions exhibit self-similar structure and efficient decentralized communication. This discovery has implications for understanding brain functioning and may lead to advanced tools for brain simulation.
Researchers found connections between newborn brain's visual word form area and language network, suggesting an innate sensitivity to visual words. The study suggests that the pre-reading VWFA is more connected functionally to the language network than other areas.
The pathoconnectome is a map of how eye disease alters retinal circuitry, offering insights into other neurodegenerative diseases like Alzheimer's and epilepsy. The research findings provide fundamental rules on how neural networks are rewired by disease, paving the way for new therapies.
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...
A study published in Radiology: Artificial Intelligence found that deep learning can improve MRI detection of ADHD by using a multi-scale approach to construct the brain connectome. This method provided significantly better performance than single-scale approaches, highlighting the predictive power of the brain connectome.
Researchers found that 3 women with no apparent olfactory bulbs could identify, detect, and discriminate between odors as well as the average person. Their brains had normal structures outside the olfactory system, suggesting alternative glomeruli maps in other brain regions.
Research published in JNeurosci found that fetal brains possess adult-like networks by 20-40 weeks gestation. The study discovered a 61% overlap in motor, visual, auditory, and cognitive functions between fetal and adult connectomes.
A team of researchers has successfully mapped the local connectome in the cerebral cortex using 3D electron microscopy, producing a connectome about 26 times larger than previous ones. The study provides insights into the density and magnitude of neuronal networks in the brain.
The Blue Brain researchers have generated statistical instances of the micro-connectome of 10 million neurons, a model spanning five orders of magnitude and containing 88 billion synaptic connections. This model reveals a surprisingly complex structure at cellular resolution, tying together neurons in different regions and at opposite ...
The study reveals substantial differences between male and female roundworms, with sex-specific behaviors linked to distinct synapse strengths. The findings mark a major milestone in connectomics, the effort to map neural connections, and may provide insights into neurological disorders such as schizophrenia and autism.
Studies from the Epilepsy Connectome Project reveal a difference in memory-related connections between healthy individuals and those with epilepsy. The researchers identified an excitatory connection association with inhibition of formation of the left hippocampal region in patients with temporal lobe epilepsy.
Researchers analyzed brain connectomes to understand healthy brain development and contribute to disorders like epilepsy. The study identified abnormalities in the salience network of subjects with autism, providing insights into the neural basis of autism.
Scientists have made fruit flies transparent using a new clearing method, allowing for high-resolution imaging of complex neural networks. This breakthrough enables the study of the connectome and behavior of Drosophila melanogaster, with potential applications in understanding neurodegenerative diseases.
Researchers at USC have created a new map of the mouse hippocampus, revealing its internal circuitry and nerve connections in vivid detail. The study aims to provide a resource for scientists to better understand the brain's memory bank and develop strategies to target neurons for treatment.
A study using advanced MRI techniques found that brain connectivity can predict long-term recovery in patients with cardiac arrest-related brain damage. Functional connectivity was stronger in those who achieved higher levels of independence, and the interaction between default mode and salience networks was a key predictor of outcomes.
Researchers developed a novel method to identify neural structures associated with impaired auditory word comprehension after stroke. The study mapped white matter connections beyond the damaged area, revealing crucial networks involved in speech comprehension and proposing targeted therapy approaches.
Neurobiologists have reconstructed nerve cells and synapses in a larval brain, revealing new circuit connection patterns that will aid future research on brain function. The project represents a significant contribution to the creation of a complete wiring diagram of the Drosophila larvae's brain.
Researchers analyzed brain activity of 100 healthy Portuguese adults and found that those with better cognitive abilities had more stable and structured brain network states. This study provides new evidence linking brain network dynamics to cognitive performance in later life.
Researchers used mathematics and MRI to better understand how neurological disorders affect brain connections. They discovered sub-networks called eigenmodes, which communicate information between brain regions.
A new study suggests that the communication between brain hemispheres is key to creativity. Highly creative individuals have significantly more nerve connections between their right and left hemispheres, particularly in the frontal lobe.
Researchers found significant alterations in brain networks of PD patients with mild cognitive impairment, indicating complex structural brain network disruption rather than individual white matter degeneration. The study suggests using MRI to monitor the disease and predict cognitive complications.
A new imaging technique has confirmed that each person's brain structure is unique, allowing for nearly perfect identification. The study also shows the brain's unique pattern changes over time.
A study using MRI found significant structural differences in the brains of children with PTSD compared to those without. The findings suggest a shift towards a more localized network structure, which may be a target for future treatments. This research could help develop new interventions for pediatric PTSD.
A recent study has mapped 180 distinct areas in the human brain's outer mantle, or cortex, more than twice the number previously known. The researchers developed software that automatically detects the unique 'fingerprint' of each area in individual brain scans, with a nearly 97% detection rate.
Researchers mapped brain connections after stroke to predict language deficits, finding damage beyond cortical tissue is crucial for language impairment. The study suggests connections in the parietal region play a key role in language function, with preservation of these connections linked to better recovery chances.
A study published in Brain Connectivity suggests that pediatric leukemia survivors may experience cognitive impairment due to chemotherapy-induced brain damage. The research used diffusion tensor imaging to analyze the white matter connectome of ALL survivors and healthy young people, revealing significantly lower connectivity and grea...
Researchers at the University of Miami studied dynamic functional network connectivity in the insular cortex, revealing unique and overlapping profiles of its subdivisions. The findings suggest that changes in connection patterns between brain areas may contribute to the region's flexibility in multiple cognitive processes.
Two studies reveal that the human brain's unique support system and connectivity are associated with higher levels of education, income, and life satisfaction. The research adds to our understanding of the human brain's parts list and enhances scientists' ability to model uniquely human disorders.
A new study by Oxford University researchers found a strong correspondence between positive lifestyle and behavior traits and specific variations in brain connectivity. Those with classically positive lifestyles had different brain connections to those with classically negative ones.
Researchers found that somatostatin neurons temporarily cloak synapses in the neocortex, silencing neighboring excitatory neurons and altering brain circuit structure. This discovery could dramatically change how we understand and use the connectome.
A new study suggests that changes in brain connections visible on MRI could represent an early sign of Alzheimer's disease. Researchers analyzed 102 patients and found a strong association between increased beta amyloid plaque and decreased white matter strength.
A new study found that children and teens with ADHD lag behind others in forming connections within their brains, particularly between networks controlling internal and external tasks. This lag may contribute to the disorder's hallmark symptoms of distraction and difficulty focusing.
Researchers have developed a new test that can detect fragile X-associated tremor/ataxia syndrome (FXTAS), a condition similar to Parkinson's disease, in individuals as young as 30 years old. The study found that brain abnormalities associated with FXTAS may begin to develop about two decades before symptoms occur.
A Penn Medicine brain imaging study found greater neural connectivity from front to back and within one hemisphere in males, while females displayed greater connectivity between the left and right hemispheres. This difference may explain why men excel at single-tasking and women are better at multitasking and social cognition.
A team of researchers has created a map of gene 'shortcuts' between all human genes, simplifying the search for disease-causing mutations. This tool, called the human gene connectome, uses GPS-like principles to predict the distance and route between any two genes.
A team of neuroscientists proposes a new method to determine neuronal connectivity using high-throughput DNA sequencing. The BOINC barcoding technique labels neurons with specific DNA barcodes, which are then shared across synapses through engineered viruses. This approach promises to be faster and cheaper than current methods.
A new MRI technique has been developed that enables full three-dimensional brain scans in less than half a second, significantly reducing the scanning time. This breakthrough, made possible by combining two technical improvements, will have an immediate impact on research institutions worldwide and the Human Connectome Project.
The new journal will focus on structural and functional connections in the brain, exploring how neurological disorders alter these connections. Researchers can access human connectome data through an interactive website, enabling the publication to contribute to novel diagnostic and therapeutic interventions.
The Human Connectome Project aims to create detailed maps of brain circuitry in healthy adults and those with psychiatric and neurologic illnesses. The project will use state-of-the-art imaging instruments and analysis tools to shed light on how brain networks are organized and how they change as we age.
A five-year, $30-million Human Connectome Project will generate a map of the brain's major circuits using powerful scanners and analysis techniques. The project aims to understand brain connectivity and function to advance brain health and develop new treatments for disorders like autism and schizophrenia.
Researchers mapped every neuron in a small muscle of mice, finding unique neural circuitry even within mirror-image tissues on the same animal. The study suggests that the mammalian nervous system may be more primitive and flexible than previously thought.