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Archive for the ‘neuroscience’ category: Page 886

Mar 14, 2017

Neurohacking: What is NEUROHACKING?

Posted by in category: neuroscience

“If the doors of perception were cleansed everything would appear to man as it is, Infinite.” –William Blake Cc Neurohacker Collective.

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Mar 14, 2017

Your brain is unique – here’s how it could be used as the ultimate security password

Posted by in categories: finance, internet, mobile phones, neuroscience, privacy, security

Biometrics – technology that can recognise individuals based on physical and behavioural traits such as their faces, voices or fingerprints – are becoming increasingly important to combat financial fraud and security threats. This is because traditional approaches, such as those based on PIN numbers or passwords, are proving too easily compromised. For example, Barclays has introduced TouchID, whereby customers can log onto internet banking using fingerprint scanners on mobile phones.

However, this is not foolproof either – it is possible to forge such biometrics. Fingers can after all be chopped off and placed by impostors to gain fraudulent access. It has also been shown that prints lifted from glass using cellophane tape can be used with gelatine to create fake prints. So there is a real need to come up with more advanced biometrics that are difficult or impossible to forge. And a promising alternative is the brain.

Emerging biometric technology based on the electrical activity of the brain have indeed shown potential to be fraud resistant. Over the years, a number of research studies have found that “brainprints” (readings of how the brain reacts to certain words or tasks) are unique to individuals as each person’s brain is wired to think differently. In fact, the brain can be used to identify someone from a pool of 102 users with more than 98% accuracy at the moment, which is very close to that of fingerprints (99.8% accuracy).

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Mar 14, 2017

Does quantum theory explain consciousness? Take the test to find out

Posted by in categories: computing, neuroscience, quantum physics

A chess problem could help scientists finally unravel whether quantum theory can explain human consciousness.

Oxford professor Sir Roger Penrose created the puzzle to prove the human mind can never be matched by a computer because it exhibits quantum effects.

This means the brain doesn’t follow the rules for the classical properties of matter like a computer.

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Mar 13, 2017

Lab-Made Brains Grow Blood Vessels

Posted by in categories: biotech/medical, neuroscience

Mini-brains created in a lab are growing their own blood vessels.

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Mar 13, 2017

Scientists get the green light to resurrect the dead with stem cells

Posted by in categories: biotech/medical, neuroscience

Bioquark, a biotech company based in the United States, has been given the go-ahead to begin research on 20 brain-dead patients, in an attempt to stimulate and regrow neurons and, literally, bring the patients back from the dead.

The technique is new and untested so the study will likely be controversial. By implanting stem cells in the patient’s brain, in addition to treating the spinal cord with infusions of chemicals and nerve stimulation techniques (both of which have been shown to bring people out of comas), they hope to reboot the brain and jump-start neural activity.

The result could be people coming back to life.

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Mar 11, 2017

Hacking the Human Brain—New Tech Could Make It a Reality

Posted by in categories: food, government, health, military, mobile phones, neuroscience

In Brief

  • Your thoughts are your own, right? Perhaps not. New technology is bringing that day closer when the unscrupulous may actually be able to hack human thoughts.
  • It raises a number of new ethical concerns for this brave new world we’re entering with each rotation of the Earth.

Everyone is familiar with the concept of hacking. It is why we all strive to protect our computers and smartphones from nefarious outside sources trying to break in to steal information, implant malware, etc. Hackers pose a threat to everyone from teenage smartphone users to the computer databases of government organizations. Hacking is a threat that we are all familiar with, and something that many know how to protect against. But, as the line between science and science fiction blurs, even hacking is getting a futuristic upgrade. Recently, at the Enigma Security Conference, University of Washington researcher and lecturer Tamara Bonaci revealed technology that could be used to essentially “hack” into people’s brains.

She created this technology around a game called Flappy Whale. While people played the game, the technology was able to covertly extract neural responses to subliminal imagery in the game like logos, restaurants, cars, etc. Now, hacking into people’s underlying feelings and thoughts about seeing a fast food restaurant doesn’t seem like it could cause much harm, but this technology has the potential to gather much more intimate information about a person like their religion, fears, prejudices, health, etc. This technology could evolve from an interesting way to understand human response to a military device. The possibilities range from an incredibly useful research tool to a potentially frightening interrogation device.

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Mar 6, 2017

Can You Tell Someone’s Emotional State from an MRI?

Posted by in categories: biotech/medical, neuroscience

The quest to read emotions from brain scans.

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Mar 1, 2017

Intestinal bacteria alter gut and brain function

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

Research from McMaster University has found that bacteria in the gut impacts both intestinal and behavioural symptoms in patients suffering from irritable bowel syndrome (IBS), a finding which could lead to new microbiota-directed treatments.

The new study, published today in Science Translational Medicine, was led by researchers from the Farncombe Family Digestive Health Research Institute at McMaster, Drs. Premysl Bercik and Stephen Collins, in collaboration with researchers from the University of Waterloo.

IBS is the most common gastrointestinal disorder in the world. It affects the large intestine and patients suffer from abdominal pain and altered bowel habits like diarrhea and constipation, which are often accompanied by chronic anxiety or depression. Current treatments aimed at improving symptoms have limited efficacy because the underlying causes are unknown.

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Feb 27, 2017

Science can help you reach enlightenment — but will it mess with your head?

Posted by in categories: government, neuroscience, science

A Navy SEAL, broad-chested and strongly built, floats peacefully on the water, as his recent deployment to a war-torn country becomes a distant memory.

Sealed inside a pitch-black sensory deprivation tank in the Mind Gym at Navy SEALs headquarters in Norfolk, Va., electrodes attached to his head, he has reached an altered state of consciousness referred to as “ecstasis” or “stepping outside oneself.”

It’s a state achieved by many others throughout time. High-performance athletes are in ecstasis when they ski down huge mountains or surf giant waves. Monks attain it after years of meditation. Mystics feel it when they have visions. And the US government uses it to try to reset their most elite warriors after brutal battles abroad.

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Feb 27, 2017

An ultra-low-power artificial synapse for neural-network computing

Posted by in categories: computing, neuroscience

(Left) Illustration of a synapse in the brain connecting two neurons. (Right) Schematic of artificial synapse (ENODe), which functions as a transistor. It consists of two thin, flexible polymer films (black) with source, drain, and gate terminals, connected by an electrolyte of salty water that permits ions to cross. A voltage pulse applied to the “presynaptic” layer (top) alters the level of oxidation in the “postsynaptic layer” (bottom), triggering current flow between source and drain. (credit: Thomas Splettstoesser/CC and Yoeri van de Burgt et al./Nature Materials)

Stanford University and Sandia National Laboratories researchers have developed an organic artificial synapse based on a new memristor (resistive memory device) design that mimics the way synapses in the brain learn. The new artificial synapse could lead to computers that better recreate the way the human brain processes information. It could also one day directly interface with the human brain.

The new artificial synapse is an electrochemical neuromorphic organic device (dubbed “ENODe”) — a mixed ionic/electronic design that is fundamentally different from existing and other proposed resistive memory devices, which are limited by noise, required high write voltage, and other factors*, the researchers note in a paper published online Feb. 20 in Nature Materials.

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