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Archive for the ‘neuroscience’ category

Apr 15, 2019

Paul Greengard, 93, Nobel Prize-Winning Neuroscientist, Is Dead

Posted by in categories: biotech/medical, neuroscience

Dr. Greengard’s research described how cells react to dopamine, an important chemical messenger in the brain. His work provided the underlying science for many antipsychotic drugs, which modulate the strength of chemical signals in the brain.

“Our work shows the details of how dopamine produces these effects — in other words, what’s wrong in these diseases and what can be done to correct them,” Dr. Greengard said.

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Apr 15, 2019

Gravitational echo phenomenon will become a key to the new physics, physicist says

Posted by in categories: cosmology, mathematics, neuroscience, physics

Gravitational echoes may be caused by the collision of two black holes, and may indicate that these objects have completely new physical properties. This conclusion was made by RUDN physicists after a series of mathematical calculations. The scientists state that if the existence of the echo phenomenon is confirmed, astrophysicists would have to reconsider their view of compact space objects. The results of the study were published in Physical Review D.

According to the theory of general relativity (GR), any massive object distorts space-time. A similar effect is observed when a heavy metal ball is placed on stretched elastic fabric. The heavier is the ball, the deeper is the depression in the fabric. Similarly, the higher the mass of an object, the more it distorts space-time. Black holes are among the heaviest objects in the universe, and therefore distort space-time the most. When two black holes collide, gravitational waves spread out from the site of collision. They can be compared to rings on the water, or sound waves, but there is one important peculiar feature. Gravitational waves do not propagate spatially—they are themselves the oscillations of space-time.

Gravitational waves from the collision of two black holes decay with time, but on their final stage, they can cause the so-called echo—additional wave scattering. It can be compared to regular acoustic echo. The existence of such gravitational echo has not been confirmed yet, and there are different opinions about its possible source. A RUDN physicist, together with colleagues from the Czech Republic and Russia, assumed that if the existence of gravitational echo is experimentally confirmed, it would be the beginning of the new physics adding to GR.

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Apr 14, 2019

Chinese Scientists Implant Human Brain Genes into Monkeys

Posted by in category: neuroscience

Scientists in China implant human genes into brains of the rhesus macaque monkey, in a move described by some as an “ethical nightmare.”

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Apr 13, 2019

Heads in the cloud: Scientists predict internet of thoughts ‘within decades’

Posted by in categories: computing, internet, neuroscience

Summary: Researchers predict the development of a brain/cloud interface that connects neurons to cloud computing networks in real time. Source: FrontiersImagine a future technology that would.

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Apr 13, 2019

Inside the lab using mind-changing psychology experiments to solve the Israel-Palestine conflict

Posted by in categories: electronics, neuroscience

To read a man’s mind, first you have to outline his skull.

Last November, I watched a psychologist use a digital pen to draw the circumference of a man’s head. The coordinates of his brain were quickly mapped, pinpointing the precise areas within his skull that process emotions. Behind him, a massive magnetic mind-reader—a neuroimaging device called a magnetoencephalography, or MEG—emerged from the wall, funneling into an oversized white helmet. It took two scientists to slowly maneuver the apparatus into position around his head.

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Apr 13, 2019

Sustained rescue of prefrontal circuit dysfunction

Posted by in categories: biotech/medical, neuroscience

A better understanding of the mechanisms underlying the action of antidepressants is urgently needed. Moda-Sava et al. explored a possible mode of action for the drug ketamine, which has recently been shown to help patients recover from depression (see the Perspective by Beyeler). Ketamine rescued behavior in mice that was associated with depression-like phenotypes by selectively reversing stress-induced spine loss and restoring coordinated multicellular ensemble activity in prefrontal microcircuits. The initial induction of ketamine’s antidepressant effect on mouse behavior occurred independently of effects on spine formation. Instead, synaptogenesis in the prefrontal region played a critical role in nourishing these effects over time. Interventions aimed at enhancing the survival of restored synapses may thus be useful for sustaining the behavioral effects of fast-acting antidepressants.

Science, this issue p. eaat8078; see also p. 129.

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Apr 13, 2019

Experts say our brains and computers will form ‘internet of thoughts’

Posted by in categories: biotech/medical, internet, nanotechnology, neuroscience, robotics/AI

Scientists say our brains will connect to computers within decades to form an ‘internet of thoughts’ that will provide instant access to information…


Forward-leaning scientists and researchers say advancements in society’s computers and biotechnology will go straight to our heads — literally.

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Apr 13, 2019

Series to explore future where social media is linked to your BRAIN

Posted by in categories: Elon Musk, neuroscience

Spine-chilling new series from The Walking Dead creator will explore dystopian future where social media is linked to your BRAIN using tech that ‘Elon Musk and Facebook are already trying to develop…


Channing Powell, the creator of the hit horror television series ‘The Walking Dead’, is not someone who is easily spooked.

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Apr 12, 2019

Scientist injects human genes into monkeys’ brains and makes them more intelligent, study says

Posted by in category: neuroscience

You just go to the Planet of the Apes immediately.

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Apr 12, 2019

Shutting down deadly pediatric brain cancer at its earliest moments

Posted by in categories: biotech/medical, genetics, neuroscience

Cell-by-cell genetic analyses of developing brain tissues in neonatal mice and laboratory models of brain cancer allowed scientists to discover a molecular driver of the highly aggressive, deadly, and treatment-resistant brain cancer, glioblastoma.

Published findings in Cell Stem Cell describe how the single-cell analyses identified a subpopulation of cells critical to formation—the early primitive progenitor cells of oligodendrocyte cells, pri-OPC progenitors, according to Q. Richard Lu, Ph.D., lead investigator and Scientific Director of the Brain Tumor Center at Cincinnati Children’s Hospital Medical Center.

The data suggest that reprogramming of primitive oligodendrocyte progenitors into a stem-like state plays an important role in glioma initiation and progression. The researchers’ primary molecular target in the study, a protein called Zfp36l1, launches biological programs that mirror those of healthy early brain development in the mice, but instead help fuel brain cancer growth. The discovery presents an opportunity to find out if new therapeutic approaches can stop glioblastoma at its earliest stages of initial formation or recurrence, Lu said.

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