ELSEVIER Philadelphia, December 28, 2021 – In the central nervous system, microglial cells play critical roles in development, aging, brain homeostasis, and pathology. Recent studies have shown variation in the gene-expression profile and phenotype of microglia across brain regions and between different age and disease states. But the molecular mechanisms that contribute to these transcriptomic...
Tag: <span>Human Brain</span>
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Human brain replays new memories at 20 times the speed during waking rest
CELL PRESS Neural replay during waking rest may contribute to memory consolidation of action sequences in humans, according to a study published June 8 in the journal Cell Reports. Brain imaging results revealed fast, repeated reactivation of a neural network representing a behavioral sequence that people were learning–approximately 20 times the speed of the new memory–especially...
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Tiny clusters of lab-grown cells are a new window into the human brain
Alison Snyder Clumps of brain cells grown in the lab provide a way to study the organ that is central to our species but is largely inaccessible in living people. Why it matters: Brain-related disorders — from autism spectrum disorders to schizophrenia to Parkinson’s disease — are a leading contributor to disability in people around the world. These...
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Revisiting the Global Workspace orchestrating the hierarchical organisation of the human brain
by Universitat Pompeu Fabra – Barcelona The new identification of the global workspace results from the intersection of key causal brain regions involved in orchestrating the performance of seven cognitive tasks and the resting state. Credit: Universitat Pompeu Fabra – Barcelona The celebrations in the 250th anniversary of the birth of Ludwig van Beethoven would...
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New form of neuronal communication is discovered in the human brain
We don’t quite understand how our own brain works – it is actually quite a big mystery. However, scientists are improving our knowledge of our central nervous system all the time. For example, now researchers from the University of Helsinki and Aalto University, in collaboration with the University of Glasgow and the University of Genoa, have identified...
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New model of human brain ‘conversations’ could inform research on brain disease, cognition
INDIANA UNIVERSITY IMAGE: RICHARD BETZEL A team of Indiana University neuroscientists has built a new model of human brain networks that sheds light on how the brain functions. The model offers a new tool for exploring individual differences in brain networks, which is critical to classifications of brain disorders and disease, as well as for...
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Scientists find neurochemicals have unexpectedly profound roles in the human brain
by Virginia Tech Virginia Tech researchers with the Fralin Biomedical Research Institute Center for Human Neuroscience Research construct carbon fiber microelectrodes for real-time detection of dopamine and serotonin activity in human patients. In first-of-their-kind observations in the human brain, an international team of researchers has revealed two well-known neurochemicals—dopamine and serotonin—are at work at sub-second speeds to shape...
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Elon Musk’s Neuralink Brain Chip Will Soon Allow Users to Take Charge of Moods and Emotions
4 August 2020, 9:53 pm EDT By Isaiah Alonzo Tech Times Elon Musk’s Neuralink currently develops a new feature on their brain chip that will enable humans to go forth and choose the mood by balancing off a person’s hormone levels. The secret project mentioned by Musk teased an update that will provide new feats...
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Why Is the Human Brain so Efficient?
How massive parallelism lifts the brain’s performance above that of AI. The brain is complex; in humans it consists of about 100 billion neurons, making on the order of 100 trillion connections. It is often compared with another complex system that has enormous problem-solving power: the digital computer. Both the brain and the computer contain...
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Building the first holographic brain ‘atlas’
by Mike Scott, Case Western Reserve University A team of researchers, led by Case Western Reserve University scientists and technicians using the Microsoft HoloLens mixed reality platform, has created what is believed to be the first interactive holographic mapping system of the axonal pathways in the human brain. The project, described by researchers as a “blending of advanced visualization hardware,...