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Archive for the ‘neuroscience’ category: Page 741

May 29, 2019

Nanoparticles can aid in stroke therapy

Posted by in categories: biotech/medical, health, nanotechnology, neuroscience

Tiny selenium particles could have a therapeutic effect on ischemic brain strokes by promoting the recovery of brain damage. Pharmacologists, including Alireza Mashaghi from the Leiden Academic Centre for Drug Research discovered that selenium nanoparticles inhibit molecular mechanisms that are responsible for the loss of brain cells after a stroke. The results were published in Nature Scientific Reports in April.

Nanoparticles against strokes

An ischemic stroke happens when a supplying blood vessel to the brain is narrowed or obstructed. As a result, the brain gets too little blood. “This lack of blood can lead to brain tissue damage due to cellular toxicity, inflammation and cell death,” Mashaghi explains. “This will, in turn, lead to brain dysfunction and neurological complaints such as numbness, vision problems, dizziness and severed headache.” Ischemic stroke accounts for 87% of all strokes and is a significant cause of death. “So far, no neuroprotective agents have been shown to produce any measurable improvement in health in cerebral stroke cases. Our results now demonstrated that selenium nanoparticles inhibit molecular mechanisms that are responsible for the loss of brain cells after a stroke.”

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May 29, 2019

An Open Letter to Ben Goertzel

Posted by in categories: geopolitics, neuroscience, physics, singularity, transhumanism

My name is Sarah Lim and I am the US Transhumanist Party’s Singaporean ambassador. I have been repeatedly trying to reach you over the course of the last few months, but I understand that you are a very busy man who’s doing a lot of great things and propelling the Singularity forward.

Like you and Andres Gomez Emilsson, I’m in the very small minority of transhumanists with an avid interest in non-local consciousness and psi research.

I’ve watched your video, “Wild-Ass Sh*t: Consciousness and Psi from a Euryphysics Perspective” four times in a row, to date. I’ve read up extensively on the PEAR Lab experiments, and I’m a friend of Jim Matlock’s as well. I’ve also read and re-read “Physicists Rediscover Sheldrake’s Morphic Fields … and my Morphic Pilot Wave …” five times, to date.

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May 29, 2019

I See You: the posthuman subject and spaces of virtuality – Rebecca Bishop

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

https://paper.li/e-1437691924


Everything is backwards now, like out there is the real world and this is the dream. (James Cameron’s Avatar, 2009)

Over recent years, considerable scholarly attention and mass media speculation has been paid to the emergence of the figure of the posthuman – a vision of augmented human that has undergone radical transformation as a result of new biotechnological and informatic technologies. This posthumanity lives simultaneously in the world of the virtual and the biological, cast concurrently as the future of a biomedically enhanced humanity and a figuration for overcoming the identity politics of the past. Some are arguing that we will eventually leave the human ‘as we know it’ behind, in a techno-modified, cognitively enhanced evolution, while in critical theory, the posthuman is being lauded as an ontology through which the boundary structures of the EuroWestern legacy of humanism can be dismantled.

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May 28, 2019

Brain stimulation enhances visual learning speed and efficiency

Posted by in categories: biotech/medical, neuroscience

Practice results in better learning. Consider learning a musical instrument, for example: the more one practices, the better one will be able to learn to play. The same holds true for cognition and visual perception: with practice, a person can learn to see better—and this is the case for both healthy adults and patients who experience vision loss because of a traumatic brain injury or stroke.

The problem with learning, however, is that it often takes a lot of training. Finding the time can be especially difficult for with injuries who may, for instance, need to re-train their brains to learn to process .

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May 28, 2019

Brain Implants Market: World Approaching Demand & Growth Prospect by 2024

Posted by in categories: biotech/medical, neuroscience

Brain implants are the neural implants that directly connected to the brain. These implants electrically stimulate, block or record the signals from the brain. It enables communication between the brain and electronic devices, thus permitting brain activity to be modified, recorded or translated. This growth is primarily driven by Increased Neurological Disorders Like Alzheimer’s disease and Rise in Geriatric Population.

Advance Market Analytics recently introduced Brain Implants Market study with in-depth overview, describing about the Product / Industry Scope and elaborates market outlook and status to 2025. Brain Implants Market explores effective study on varied sections of Industry like opportunities, size, growth, technology, demand and trend of high leading players. It also provides market key statistics on the status of manufacturers, a valuable source of guidance, direction for companies and individuals interested in the industry.

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May 28, 2019

Provocative study shows how the herpes virus can speed up the onset of Alzheimer’s disease

Posted by in categories: biotech/medical, neuroscience

An intriguing new study from researchers at Stockholm University and Karolinska Institutet has described a mechanism by which virus particles can interact with proteins in biological fluids and become more infectious, while also accelerating the formation of plaques often associated with neurodegenerative diseases such as Alzheimer’s.

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May 27, 2019

Autism linked to ‘junk’ DNA mutations

Posted by in categories: biotech/medical, neuroscience

Mutations in so-called “junk” DNA have been tied to the development of autism (ASD) in children who do not have parents or siblings with the condition.


For the first time, research links non-coding DNA to disorder development. Andrew Masterson reports.

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May 27, 2019

Quantum information in quantum cognition

Posted by in categories: neuroscience, particle physics, quantum physics

Some research topics, says conventional wisdom, a physics PhD student shouldn’t touch with an iron-tipped medieval lance: sinkholes in the foundations of quantum theory. Problems so hard, you’d have a snowball’s chance of achieving progress. Problems so obscure, you’d have a snowball’s chance of convincing anyone to care about progress. Whether quantum physics could influence cognition much.

Quantum physics influences cognition insofar as (i) quantum physics prevents atoms from imploding and (ii) implosion inhabits atoms from contributing to cognition. But most physicists believe that useful entanglement can’t survive in brains. Entanglement consists of correlations shareable by quantum systems and stronger than any achievable by classical systems. Useful entanglement dies quickly in hot, wet, random environments.

Brains form such environments. Imagine injecting entangled molecules A and B into someone’s brain. Water, ions, and other particles would bombard the molecules. The higher the temperature, the heavier the bombardment. The bombardiers would entangle with the molecules via electric and magnetic fields. Each molecule can share only so much entanglement. The more A entangled with the environment, the less A could remain entangled with B. A would come to share a tiny amount of entanglement with each of many particles. Such tiny amounts couldn’t accomplish much. So quantum physics seems unlikely to affect cognition significantly.

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May 27, 2019

Engineering cancer defence for the brain

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

Brain cancer kills more Australian children than other cancers; University of Melbourne research finds genetically engineered killer T-cells could change that.

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May 27, 2019

Scientists Discover Unexpected Underwater Volcano off the Coast of Africa

Posted by in category: neuroscience

Geologists first noticed something unusual in the Indian Ocean in November last year, when they detected a massive seismic event originating from a spot near to the French island of Mayotte. Now further research has revealed that the source of the seismic activity is an enormous underwater volcano.

The people living on Mayotte, located between Madagascar and Mozambique off the coast of Africa, had been worried by seismic tremors for months. They were experiencing small earthquakes daily, Laure Fallou, a sociologist with the European-Mediterranean Seismological Centre in Bruyères-le-Ch tel, France, told Science. People “needed information,” she said. “They were getting very stressed, and were losing sleep.”

Maps of the seafloor showed a dramatic and recent change: a structure 800 meters high and 5 kilometers (3 miles) across had appeared on the ocean floor where there had been nothing before. A research team from the French National Center for Scientific Research (CNRS) were dispatched to investigate and placed six seismometers near the area of activity on the ocean floor, 3.5 kilometers (2 miles) beneath the surface.

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