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Archive for the ‘neuroscience’ category: Page 778

Feb 5, 2019

A single transistor process that can create connections

Posted by in categories: computing, neuroscience

A single transistor process that can create connections, and encode short and long term memories. The transistor is based on organic versus inorganic technology. The project relies on a form of transistor that uses ion injection from an electrolyte solution, which changes the storage and connectivity of the transistor.

The end result, a simple learning circuit to replicate neuronal action.

News Article: https://www.sciencedaily.com/releases/2019/02/190205102537.htm

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Feb 5, 2019

Autism spectrum disorders may stem from multiple factors

Posted by in categories: health, neuroscience

Diagnosed cases of autism spectrum disorder (ASD) in California rose by 600 percent from 1990 to 2003. Irva Hertz-Picciotto, Ph.D., director of the Environmental Health Sciences Core Center at the University of California-Davis, published this statistic in the journal Epidemiology a decade ago.

The esteemed epidemiologist told the audience during the Jan. 8 NIEHS Distinguished Lecture that she and her colleagues have only been able to explain a third of the increase.

“No single factor accounts for all autism cases, nor is there one event or exposure that can be responsible for the rapid increase in diagnoses,” said Hertz-Picciotto. “Each child’s path to altered brain development may be different.” Her talk was hosted by NIEHS and National Toxicology Program (NTP) Director Linda Birnbaum, Ph.D.

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Feb 4, 2019

Preschool Teacher with Brain Tumor Who Was Given a Week to Live Is Now Thriving

Posted by in categories: biotech/medical, neuroscience

Thanks to a new clinical drug trial, Amanda Thomas’s brain tumor is shrinking.

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Feb 4, 2019

Evidence mounts that gut bacteria can influence mood, prevent depression

Posted by in category: neuroscience

Researchers find certain bacteria may make compounds that affect mental well-being.

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Feb 3, 2019

Military Pilots Can Control Three Jets at Once via a Neural Implant

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

The next step: the same capability, sans surgery.

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Feb 2, 2019

Finding Differences in Brain Connectivity May Aid in Autism Diagnosis

Posted by in category: neuroscience

New research looks at distinctive differences in brain connectivity that may underlie autism spectrum disorders (ASD) — and possibly provide much-needed biomarkers to aid in identifying the disorder.

Diagnosis for ASD is still behaviorally based. But getting a diagnosis can take longer due to several factors, including lack of resources and trained clinicians. This delays autism diagnosis, on average, until age 5 or 6.

“Within ASD, two important research questions are: How can we minimize the delay in diagnosis, and what kind of intervention can we give the child?” said Rajesh Kana, Ph.D., associate professor of psychology in the UAB College of Arts and Sciences.

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Feb 2, 2019

No Chemo, No Cancer: Trial Eradicates All Signs of Breast Tumors in Only 11 Days

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

Despite unbelievable advances in medical science in recent decades, breast cancer kills. Approximately 1 in 8 American women will develop breast cancer cells during the course of their lifetime.

Finding a cure is imperative, and as such, fervent research continues. At the European Breast Cancer Conference in Amsterdam, scientists presented a pair of drugs with an astounding claim: this treatment can eradicate some types of breast cancer in only 11 days, eliminating the need for chemotherapy.

Chemotherapy, whilst an amazing feat of medical-scientific engineering, is known for its uncomfortable and sometimes debilitating side effects. Women undergoing chemotherapy for breast cancer treatment may lose their hair, suffer extreme fatigue, and even loss of cognitive function.

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Feb 2, 2019

Listening to the music you love will make your brain release more dopamine, study finds

Posted by in categories: media & arts, neuroscience

A new study has found that dopamine — a neurotransmitter that plays an important role in our cognitive, emotional, and behavioral functioning — plays a direct role in the reward experience induced by music. The new findings have been published in the Proceedings of the National Academy of Sciences.

“In everyday life, humans regularly seek participation in highly complex and pleasurable experiences such as music listening, singing, or playing, that do not seem to have any specific survival advantage. Understanding how the brain translates a structured sequence of sounds, such as music, into a pleasant and rewarding experience is thus a challenging and fascinating question,” said study author Laura Ferreri, an associate professor in cognitive psychology at Lyon University.

“In the scientific literature, there was a lack of direct evidence showing that dopamine function is causally related to music-evoked pleasure. Therefore in this study, through a pharmacological approach, we wanted to investigate whether dopamine, which plays a major role in regulating pleasure experiences and motivation to engage in certain behaviors, plays a direct role in the experience of pleasure induced by music.”

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Feb 2, 2019

Why measles is back, in five charts

Posted by in categories: biotech/medical, neuroscience

Too many people have forgotten what it’s like to live in a time where everyone got the measles. The vaccine was invented in 1963, and by 1968 cases in the U.S. had already dropped. By the ’70s it was downright rare to get measles as a child, when just a decade or so earlier it had been uncommon not to get it. By 2000, the U.S. declared the disease eliminated—rare cases always came from outside the country. But 2019 has begun with some of the worst outbreaks we’ve seen in recent years, and it’s crystal clear to researchers why the measles is coming back: we got lax about vaccines.

Thanks in part to a famous, fraudulent study claiming to link the MMR vaccine (that’s for measles, mumps, and rubella) to autism, parents across the country have been dissuaded from fully vaccinating their children. The measles virus infects nearly everyone it comes in contact with, so our main protection from it comes from herd immunity—you need upwards of 95 percent of a population to be vaccinated against it to avoid harboring pockets of the virus.

But in recent years, thanks to state laws that allow parents religious and/or philosophical belief exemptions, those rates have been dropping. It’s only by a few percentage points, but remember: we need to stay above 95 percent. The same thing is happening in Europe, where several countries have dipped below that mark or even lower, into the high 80’s. Even a few percentage points can make a difference—Europe saw one of its worst years for measles cases on record, with tens of thousands falling ill from a completely preventable disease.

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Feb 2, 2019

How Emergent is the Brain?

Posted by in category: neuroscience

A new paper offers a broad challenge to a certain kind of ‘grand theory’ about the brain. According to the authors, Federico E. Turkheimer and colleagues, it is problematic to build models of brain function that rely on ‘strong emergence’.

dreams

Two popular theories, the Free Energy Principle aka Bayesian Brain and the Integrated Information Theory model, are singled out as examples of strong emergence-based work.

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