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Archive for the ‘neuroscience’ category: Page 854

Apr 2, 2018

Research trend: Combining brain stimulation with cognitive training to enhance attention and memory

Posted by in categories: biotech/medical, military, mobile phones, neuroscience

In summary — “I am cautiously optimistic about the promise of tDCS; cognitive training paired with tDCS specifically could lead to improvements in attention and memory for people of all ages and make some huge changes in society. Maybe we could help to stave off cognitive decline in older adults or enhance cognitive skills, such as focus, in people such as airline pilots or soldiers, who need it the most. Still, I am happy to report that we have at least moved on from torpedo fish” smile


In 47 CE, Scri­bo­nius Largus, court physi­cian to the Roman emper­or Claudius, described in his Com­po­si­tiones a method for treat­ing chron­ic migraines: place tor­pe­do fish on the scalps of patients to ease their pain with elec­tric shocks. Largus was on the right path; our brains are com­prised of elec­tri­cal sig­nals that influ­ence how brain cells com­mu­ni­cate with each oth­er and in turn affect cog­ni­tive process­es such as mem­o­ry, emo­tion and attention.

The sci­ence of brain stim­u­la­tion – alter­ing elec­tri­cal sig­nals in the brain – has, need­less to say, changed in the past 2,000 years. Today we have a hand­ful of tran­scra­nial direct cur­rent stim­u­la­tion (tDCS) devices that deliv­er con­stant, low cur­rent to spe­cif­ic regions of the brain through elec­trodes on the scalp, for users rang­ing from online video-gamers to pro­fes­sion­al ath­letes and peo­ple with depres­sion. Yet cog­ni­tive neu­ro­sci­en­tists are still work­ing to under­stand just how much we can influ­ence brain sig­nals and improve cog­ni­tion with these techniques.

Continue reading “Research trend: Combining brain stimulation with cognitive training to enhance attention and memory” »

Apr 2, 2018

DNA tests for IQ are coming, but it might not be smart to take one

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

Scientists have linked hundreds of genes to intelligence. One psychologist says it’s time to test school kids.

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Apr 1, 2018

Your Brain is Lying to You: Here’s How to Force it to Tell the Truth

Posted by in category: neuroscience

Everyone suffers from unconscious bias, but here’s an easy way to check yourself.

By Suzanne Lucas

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Mar 31, 2018

Bioquark Inc. — Natural Awakenings Magazine — Ira Pastor

Posted by in categories: aging, bees, biological, biotech/medical, chemistry, cosmology, genetics, health, neuroscience, transhumanism

Mar 30, 2018

Scientists Discover Biophotons In The Brain That Could Hint Our Consciousness is Directly Linked to Light!

Posted by in category: neuroscience

Scientists found that neurons in mammalian brains were capable of producing photons of light, or “Biophotons”!

The photons, strangely enough, appear within the visible spectrum. They range from near-infrared through violet, or between 200 and 1,300 nanometers.

Scientists have an exciting suspicion that our brain’s neurons might be able to communicate through light. They suspect that our brain might have optical communication channels, but they have no idea what could be communicated.

Continue reading “Scientists Discover Biophotons In The Brain That Could Hint Our Consciousness is Directly Linked to Light!” »

Mar 30, 2018

Elon Musk’s Neuralink files permit to build biological research lab

Posted by in categories: biological, Elon Musk, neuroscience

Elon Musk’s neurotechnology startup Neuralink filed for permits to build an in-house machine shop and a biological testing laboratory for its facility in San Francisco last year.

The documentation on the company’s 2017 permits was retrieved by Gizmodo, which was able to access Neuralink’s public records. An excerpt of a letter submitted by Neuralink executive Jared Birchall on February 2017 to the city’s planning department gives some clues about the company’s plans for the facility’s proposed machine shop and animal testing lab.

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Mar 29, 2018

The brain learns completely differently than we’ve assumed, new learning theory says

Posted by in categories: biological, information science, neuroscience

(credit: Getty)

A revolutionary new theory contradicts a fundamental assumption in neuroscience about how the brain learns. According to researchers at Bar-Ilan University in Israel led by Prof. Ido Kanter, the theory promises to transform our understanding of brain dysfunction and may lead to advanced, faster, deep-learning algorithms.

A biological schema of an output neuron, comprising a neuron’s soma (body, shown as gray circle, top) with two roots of dendritic trees (light-blue arrows), splitting into many dendritic branches (light-blue lines). The signals arriving from the connecting input neurons (gray circles, bottom) travel via their axons (red lines) and their many branches until terminating with the synapses (green stars). There, the signals connect with dendrites (some synapse branches travel to other neurons), which then connect to the soma. (credit: Shira Sardi et al./Sci. Rep)

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Mar 28, 2018

Clearing Protein Aggregates Boosts Neural Stem Cell Activity

Posted by in categories: biotech/medical, neuroscience

In a paper published on March 15, 2018, in the journal Science, Stanford researchers led by Dr. Dena Leeman showed that intracellular protein aggregates accumulate within the lysosomes of neural stem cells that were previously thought not to suffer from this problem [1].

Intracellular waste disposal 101

Dysfunctional proteins and organelles within a cell constitute intracellular waste that the cell needs to dispose of. To do so, the cell may avail itself of proteasomes and lysosomes. Proteasomes are protein complexes that, with the help of enzymes, break down other, unnecessary proteins into shorter amino acids that can then be recycled to build new, useful proteins. Proteasomes are found within the cell nucleus and in the cytosol—the aqueous solution in which everything in a cell floats. The discovery of proteasomes happened later than that of lysosomes, which, for a while, were thought to be the only cellular waste management systems.

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Mar 28, 2018

Artificial Brains Shed Light on the Workings of Our Own

Posted by in categories: neuroscience, robotics/AI

Https://paper.li/e-1437691924#/


In the natural world, intelligence takes many forms. It could be a bat using echolocation to expertly navigate in the dark, or an octopus quickly adapting its behavior to survive in the deep ocean. Likewise, in the computer science world, multiple forms of artificial intelligence are emerging — different networks each trained to excel in a different task. And as will be presented today at the 25th annual meeting of the Cognitive Neuroscience Society (CNS), cognitive neuroscientists increasingly are using those emerging artificial networks to enhance their understanding of one of the most elusive intelligence systems, the human brain.

“The fundamental questions cognitive neuroscientists and computer scientists seek to answer are similar,” says Aude Oliva of MIT. “They have a complex system made of components — for one, it’s called neurons and for the other, it’s called units — and we are doing experiments to try to determine what those components calculate.”

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Mar 27, 2018

Vegetable compound could have a key role in ‘beeting’ Alzheimer’s disease

Posted by in categories: biotech/medical, neuroscience

A compound in beets that gives the vegetable its distinctive red color could eventually help slow the accumulation of misfolded proteins in the brain, a process that is associated with Alzheimer’s disease. Scientists say this discovery could lead to the development of drugs that could alleviate some of the long-term effects of the disease, the world’s leading cause of dementia.

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