Most Recently Added Most commentedBy Title | A-Z

Page 1 of 1,12612345678910Last

Disruptive sounds help aging brain ignore distractions

November 26, 2014

(Credit: iStock)

As we age, we have an increasingly harder time ignoring distractions. But by learning to discriminate a sound amidst progressively more disruptive distractions, we can diminish our distractibility, new research in Cell Press journal Neuron reveals.

A similar strategy might also help children with attention deficits or individuals with other mental challenges.

Distractibility (the inability to sustain focus on a goal due to attention to irrelevant stimuli) can have… read more

New targeted, noninvasive treatments for mental illness to combine TMS and ultrasound

November 26, 2014

Transcranial magnetic stimulation can stimulate brain circuits near the surface for treating conditions like depression and anxiety; ultrasound (right) can reach deeper into the brain and more precisely. Stanford researchers hope to combine them. (Credit: Wikimedia Commons and Stanford University)

A new interdisciplinary Stanford University initiative called NeuroCircuit aims to find the specific brain circuits that are responsible for mental-health conditions and then develop ways of noninvasively stimulate those circuits to potentially lead to improved treatments for depression, anxiety, and post-traumatic stress disorder.

“You see things activated in brain images but you can’t tell just by watching what is cause and what is effect,” said Amit Etkin, Neurocircuit co-leader… read more

Wireless electronic implants deliver antibiotic, then harmlessly dissolve

November 25, 2014

coil + resistor

Imagine an electronic implant that delivers a drug when triggered by a remote wireless signal — then harmlessly dissolves (no post-surgical infection concerns, no fuss, no muss) within minutes or weeks.

That’s what researchers at Tufts University and the University of Illinois at Champaign-Urbana have demonstrated* in mice, using a resistor (as a source of heat for releasing drug and help dissolving the implant) and a power-receiving coil made… read more

Does virtual reality space you out?

November 25, 2014

(Credit: IMAX Corporation)

Put rats in an IMAX-like surround virtual world limited to vision only, and the neurons in their hippocampi* seem to fire completely randomly — and more than half of those neurons shut down — as if the neurons had no idea where the rat was, UCLA neurophysicists found in a recent experiment.

Put another group of rats in a real room (with sounds and odors) designed to look likeread more

How permanent stress may lead to mental disorders

November 24, 2014

Microglia cells from rat cortex before (left) and after (right) traumatic brain injury (credit: Wikimedia Commons)

Activated through permanent stress, immune cells in the brain can cause changes to the brain, resulting in mental disorders, a research team headed by professor Georg Juckel, Medical Director of the Ruhr-Universität Bochum (RUB) LWL university clinic, has found. The research was based on psychoneuroimmunology, the study of the interaction between psychological processes and the nervous and immune systems of the human body.

The team focused mainly on … read more

A wearable to help measure stress, epileptic seizures, activity, and sleep

November 24, 2014

Embrace (credit: Empatica)

MIT spinoff Empatica, which is developing a medical-quality wearable device to monitor epileptic seizures* and alert caregivers, has launched an Indiegogo crowdfunding campaign to fund its development.

“When people that have epilepsy wear Embrace, they will get an alert when an unusual event happens, like a convulsive seizure,” the Indiegogo site says. “It will go via their smartphone to parents, roommates or caregivers, so somebody can check… read more

Low-cost 2D-printed ‘paper electronics’

Could make health care and other uses more accessible
November 21, 2014

Paper-baaed touch pad functioning on a curved surface (credit: Ruo-Zhou Li et al./ ACS Applied Materials & Interfaces)

An international team of scientists has developed a fast, low-cost way of making low-cost medical electronic touch sensors by printing conductive silver nanowire inks directly on paper, using a 2D programmed printing machine.

Anming Hu of the University of Tennessee Department of Mechanical, Aerospace and Biomedical Engineering and colleagues point out that paper, which is available worldwide at low cost, makes an excellent surface for lightweight, foldable “paper electronics: that… read more

Spooky alignment of quasar axes across billions of light-years with large-scale structure

November 21, 2014

This artist's impression shows schematically the mysterious alignments between the spin axes of quasars and the large-scale structures that they inhabit that observations with ESO’s Very Large Telescope have revealed. These alignments are over billions of light-years and are the largest known in the Universe. The large-scale structure is shown in blue and quasars are marked in white with the rotation axes of their black holes indicated with a line around them. This picture is for illustration only and does not depict the real distribution of galaxies and quasars. (Credit: ESO/M. Kornmesser)

New observations with ESO’s Very Large Telescope (VLT) in Chile have revealed alignments over the largest structures ever discovered in the Universe. A European research team has found that the rotation axes of the central supermassive black holes in a sample of quasars are parallel to each other over distances of billions of light-years. The team has also found that the rotation axes of these quasars tend to… read more

Robotic walker helps patients regain natural gait and increases productivity of physiotherapists

November 21, 2014

Robotic walker (credit: NUS)

A novel robotic walker that helps patients carry out therapy sessions to regain their leg movements and natural gait has been invented by a team of researchers led by assistant professor Yu Haoyong from the National University of Singapore Department of Biomedical Engineering.

Survivors of stroke or other neurological conditions such as spinal cord injuries, traumatic brain injuries and Parkinson’s disease often struggle with mobility. To regain… read more

China and ‘one or two others’ can shut US electric grids and other critical infrastructure, says NSA director

November 21, 2014

(Credit: Achim Hering/Wikimedia Commons)

China and “one or two others” can shut down the U.S. electric grids and other critical infrastructure and is performing electronic reconnaissance on a regular basis, said NSA director Admiral Michael Rogers, testifying Thursday (Nov. 20) at a House Select Intelligence Committee hearing on U.S. efforts to combat cybersecurity.

“All of that leads me to believe it is only a matter of when, not if, we are going to… read more

Georgia Tech professor proposes another alternative to the Turing test

The Lovelace 2.0 Test of Artificial Creativity and Intelligence assesses a computer's capacity for human-level intelligence by its ability to create, rather than to converse or deceive
November 20, 2014

But would mathematician-programmer Countess Lady Lovelace have approved?

Georgia Tech associate professor Mark Ried has developed a new kind of “Turing test” — a test proposed in 1950 by computing pioneer Alan Turing to determine whether a machine or computer program exhibits human-level intelligence.Most Turing test designs require a machine to engage in dialogue and convince (trick) a human judge that it is an actual person. But creating certain types of art also requires intelligence, leading Reid to consider… read more

First genetic-based tool to detect circulating cancer cells in blood — lights up cancer cells

Method may detect trouble long before a cancerous tumor could form; live cells can be collected, cultured and studied for personalized treatment
November 20, 2014

NanoFlare ft

Northwestern University scientists have demonstrated a simple but powerful tool called NanoFlare that can detect live cancer cells in the bloodstream, potentially long before settling somewhere in the body and forming a dangerous tumor.

The NanoFlare technology is the first genetic-based approach that is able to detect live circulating tumor cells out of the complex matrix that is human blood — no easy feat. The NanoFlares are tiny spherical nucleic… read more

A computer-vision algorithm that can describe photos

Machine-learning takes computer vision to the next level with a system that can describe objects and put them into context. Coming soon, better visual search?
November 19, 2014

images with scenes ft

Computer software only recently became smart enough to recognize objects in photographs. Now, Stanford researchers using machine learning have created a system that takes the next step, writing a simple story of what’s actually happening in any digital image.

“The system can analyze an unknown image and explain it in words and phrases that make sense,” said  Fei-Fei Li, a professor of computer science and director of the… read more

How neurons multitask

November 19, 2014

(Credit: Cell)

University of Michigan scientists have come up with a possible explanation for the impressive ability of neurons to perform a wide range of functions.

They explored this using the C. elegans* roundworm. They found that a single neuron in C. elegans regulates both the speed and direction in which the worm moves, shedding light on how the human brain works, say investigators in the lab of… read more

How brain cells persuade other cells to do ‘the wave’

November 19, 2014

Stadium crowd performing "the wave" at the Confederations Cup 2005 in Frankfurt (credit: Wikimedia Commons)

Neuroscientists have discovered mechanisms that enable certain brain cells to persuade others to create “the wave” (a wave of standing spectators that travels through a crowd*), which may help understand more about neurocognitive disorders such as dementia, the researchers say.

Inhibitory neurons** can persuade networks of other neurons to imitate their vibrations, setting off global synchronous oscillations in the brain. The neuroscientists, at Imperial College London and the… read more

Page 1 of 1,12612345678910Last
close and return to Home