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Archive for the ‘mapping’ category: Page 7

Aug 9, 2023

HBP researchers identify three new human brain areas involved in sexual sensation, motor coordination, and music processing

Posted by in categories: mapping, media & arts, neuroscience

HBP researchers from Germany performed detailed cytoarchitectonic mapping of distinct areas in a human cortical region called frontal operculum and, using connectivity modelling, linked the areas to a variety of different functions including sexual sensation, muscle coordination as well as music and language processing.

The study contributes to the further unravelling of the relationship of the human brain’s structure with function, and is the first proof-of-concept of structural and functional connectivity analysis of the frontal operculum. The newly identified cytoarchitectonic areas have been made publicly available as part of the Julich-Brain Atlas on the EBRAINS platform, inviting for future research to further characterise this brain region.

Based on cell-body stained histological sections in ten postmortem brains (five females and five males), HBP researchers from Heinrich Heine University Düsseldorf and Research Centre Jülich identified three new areas in the frontal operculum: Op5, Op6 and Op7. Each of these areas had a distinct cytoarchitecture. Connectivity modelling showed that each area could be ascribed a distinct functional role.

Aug 4, 2023

Algorithms Can Learn, And They Probably Should: Saving Resources For The Future

Posted by in categories: information science, mapping, robotics/AI

What you get, starting out in this video, is that algorithms impact our lives in, as CSAIL grad student Sandeep Silwal puts it, “silent ways”

Silwal uses a simple example – maps – in discussing what he calls the “marriage of provable algorithm design and machine learning.”

Lots of people, he notes, want to move from the area around MIT, south across the Charles to Fenway Park, to see the Red Sox.

Continue reading “Algorithms Can Learn, And They Probably Should: Saving Resources For The Future” »

Aug 2, 2023

First comprehensive maps of infant brains reveal clues to neurodevelopment

Posted by in categories: mapping, neuroscience

Scientists have constructed a comprehensive set of functional maps of infant brain networks, providing unprecedented details on brain development from birth to two years old.

The infant brain cortex parcellation maps, published today in eLife, have already provided novel insights into when different brain functions develop during infancy and provide valuable, publicly available references for early brain developmental studies.

Cortical parcellation is a means of studying brain function by dividing up cortical gray matter in different locations into “parcels.” Scans from imaging (fMRI) are taken when the brain is in an inactive “resting” state, alongside measurements of brain connectivity, to study brain function within each parcel.

Jul 25, 2023

Math That Lets You Think Locally but Act Globally

Posted by in categories: mapping, mathematics

Knowing a little about the local connections on flight maps and other networks can reveal a lot about a system’s global structure.

Jul 24, 2023

Century-Old Paradigm Overturned — Brain Shape Matters More Than Neural Connectivity

Posted by in categories: mapping, neuroscience, physics

For over a hundred years, scientists have held the belief that our thoughts, feelings, and dreams are shaped by the way various brain regions interact via a vast network of trillions of cellular connections.

However, a recent study led by the team at Monash University’s Turner Institute for Brain and Mental Health has examined more than 10,000 distinct maps of human brain activity and discovered that the overall shape of an individual’s brain has a much more substantial impact on our cognitive processes, emotions, and behavior than its intricate neuronal connectivity.

The study, recently published in the prestigious journal, Nature draws together approaches from physics, neuroscience, and psychology to overturn the century-old paradigm emphasizing the importance of complex brain connectivity, instead identifying a previously unappreciated relationship between brain shape and activity.

Jul 21, 2023

Scientists use chemical mapping to study the spiraling arms of the Milky Way

Posted by in categories: chemistry, evolution, mapping, space

A researcher has used the technique of chemical mapping to study the spiral arms of our home galaxy: the Milky Way. According to Keith Hawkins, assistant professor at The University of Texas at Austin, chemical cartography might help us better grasp the structure and evolution of our galaxy.

“Much like the early explorers, who created better and better maps of our world, we are now creating better and better maps of the Milky Way,” mentioned Hawkins in an official release.


NASA/JPL-Caltech.

Continue reading “Scientists use chemical mapping to study the spiraling arms of the Milky Way” »

Jul 21, 2023

Chemical mapping reveals the Milky Way’s spiral arms

Posted by in categories: chemistry, mapping, space

Identifying regions of the Milky Way’s spiral arms that have previously gone undetected.

Jul 20, 2023

First Spatial Map of the Intestine at the Single-Cell Level

Posted by in category: mapping

New mapping effort, using spatial technology, reveals the organization of the human intestine at single-cell resolution for the first time.

Jul 20, 2023

Neuroscientists discover new brain cells that help correct navigational errors

Posted by in categories: mapping, neuroscience

During routine navigation in daily life, our brains use spatial mapping and memory to guide us from point A to point B. Just as routine: making a mistake in navigation that requires a course correction.

Now, researchers at Harvard Medical School have identified a specific group of neurons in a brain region involved in navigation that undergo bursts of activity when mice running a maze veer off course and correct their error.

The findings, published July 19 in Nature, bring scientists a step closer to understanding how navigation works, while raising new questions. These questions include the specific role these neurons play during navigation, and what they are doing in other brain regions where they are found.

Jul 20, 2023

New dual-resolution technique opens door for faster drone exploration

Posted by in categories: drones, mapping, robotics/AI

Researchers from Carnegie Mellon University have developed a new technique that could lead to faster and more efficient drone exploration.

A team of researchers from Carnegie Mellon University has successfully developed a new dual-mapping technique that could help robots explore areas faster and more efficiently. By producing both a site’s high-and low-resolution map, this new technique enables robots to explore areas using only a fraction of the computing power typically needed for a similar task.

Continue reading “New dual-resolution technique opens door for faster drone exploration” »

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