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Archive for the ‘neuroscience’ category: Page 572

Jul 11, 2019

A Special Class of Proteins Offers Promising Targets for Drugs for Cancer and Alzheimer’s

Posted by in categories: biotech/medical, neuroscience

New possibilities for treating cancer and other ills.

  • By Elizabeth O’Day on July 1, 2019

Jul 10, 2019

A 100-hour MRI scan captured the most detailed look yet at a whole human brain

Posted by in categories: biotech/medical, neuroscience

Researchers report ultraprecise imaging of a postmortem human brain.

Jul 10, 2019

Gut worms were once a cause of disease, now they are a cure Essays

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

We need worms

You might think they are disgusting. But our war against intestinal worms has damaged our immune systems and mental health.

William Parker

Jul 9, 2019

Neuroscience and artificial intelligence can help improve each other

Posted by in categories: bioengineering, biological, information science, neuroscience, robotics/AI

Despite their names, artificial intelligence technologies and their component systems, such as artificial neural networks, don’t have much to do with real brain science. I’m a professor of bioengineering and neurosciences interested in understanding how the brain works as a system – and how we can use that knowledge to design and engineer new machine learning models.

In recent decades, brain researchers have learned a huge amount about the physical connections in the brain and about how the nervous system routes information and processes it. But there is still a vast amount yet to be discovered.

At the same time, computer algorithms, software and hardware advances have brought machine learning to previously unimagined levels of achievement. I and other researchers in the field, including a number of its leaders, have a growing sense that finding out more about how the brain processes information could help programmers translate the concepts of thinking from the wet and squishy world of biology into all-new forms of machine learning in the digital world.

Jul 8, 2019

New research sheds light on a possible cause of autism: processed foods

Posted by in categories: food, neuroscience

The more we learn about the microbiome, the more the pieces are fitting together.

Jul 8, 2019

Important results for brain machine interfaces

Posted by in categories: biotech/medical, neuroscience

Data from Mental Work project, conducted as an experimental artwork at EPFL’s Artlab, indicates that BMI is robust and accessible to the general public, spurring new research collaborations in Switzerland on user experience.

Brain-machine interfaces are rarely found outside of medical clinics, where the disabled receive hours or days of training in order to operate wheelchairs with their minds. Now the largest-ever BMI experiment Mental Work, conducted as an experimental artwork at EPFL’s Artlab, has provided preliminary evidence that training time can be shortened, the use of dry electrodes are a robust solution for public BMI and that user performance tends to improve within a relatively short period of time. The still-to-be-published results suggest that BMI may soon reach a much larger and more diverse population. A new collaboration between the Foundation Campus Biotech Geneva, the EPFL and the HEIG-VD in Yverdon will build on the promising results will build on the promising results of Mental Work to further develop user-friendly and publicly accessible interfaces to interact with the physical and digital world using only one’s mind.

“This is the first demonstration that installation art can be used as an experimental platform for breakthrough science,” says Jonathon Keats, the artist and experimental philosopher who conceptualized Mental Work.

Jul 8, 2019

Could Lab-Grown Brains Develop Consciousness?

Posted by in category: neuroscience

There’s a very un-sexy view of consciousness: our rich, meaningful inner experience of self and other is nothing but electrical and chemical chattering inside our brains.

If you, like many scientists, subscribe to this theory, then a difficult question naturally follows: at what point does electro-chemical activity in dissected brain-like tissue become conscious? Yes, I’m talking about the classic sci-fi “brain in a vat” scenario; no, we are absolutely not there.

But this week, a Japan-led study in Stem Cell Reports is raising some serious red flags. For the first time, a team carefully characterized the electrical chattering of neurons grown from a brain organoid and found that they spontaneously formed long-distance connections that allowed them to fire in synchrony. “Fire together; wire together” is a fundamental testament of learning in neuroscience. Because neurons in lab-grown minibrains can sync up their activity, analogous to how neurons hook up in our brains, it’s possible that the brain nuggets have the capability to support higher cognitive functions when they’re more mature.

Jul 7, 2019

The Human Brain Explained | Neuroscience Full Documentary

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

The regions and lobes of the brain are identified along with some of the nerves and vessels. The basic functions of the cortex of each lobe are introduced along with principal sulci and gyri. The importance of the left hemisphere for language and the temporal lobe in memory are mentioned along with the concept of cortical localisation. A classical frontal section is used to demonstrate grey and white matter along with the primary internal structures. The brain is one of the largest and most complex organs in the human body. It is made up of more than 100 billion nerves that communicate in trillions of connections called synapses. The brain is made up of many specialised areas that work together: The cortex is the outermost layer of brain cells. the human brain is explained in this video. Full documentary of the human brain.

Jul 7, 2019

Could machines become self-aware?

Posted by in categories: neuroscience, robotics/AI

Analysis: humans make about 35,000 decisions every day so is it possible for AI to deal with a similar volume of high decision uncertainty?

Artificial intelligence (AI) that can think for itself may still seem like something from a science-fiction film. In the recent TV series Westworld, Robert Ford, played by Anthony Hopkins, gave a thought-provoking speech: “we can’t define consciousness because consciousness does not exist. Humans fancy that there’s something special about the way we perceive the world and yet, we live in loops as tight and as closed as the [robots] do, seldom questioning our choices – content, for the most part, to be told what to do next.”

Mimicking realistic human-like cognition in AI has recently become more plausible. This is especially the case in Computational Neuroscience, a rapidly expanding research area that involves the computational modelling of the brain to provide quantitative, computational theories.

Jul 7, 2019

Sleep increases chromosome dynamics to enable reduction of accumulating DNA damage in single neurons

Posted by in categories: biotech/medical, neuroscience

Sleep is essential to all animals with a nervous system. Nevertheless, the core cellular function of sleep is unknown, and there is no conserved molecular marker to define sleep across phylogeny. Time-lapse imaging of chromosomal markers in single cells of live zebrafish revealed that sleep increases chromosome dynamics in individual neurons but not in two other cell types. Manipulation of sleep, chromosome dynamics, neuronal activity, and DNA double-strand breaks (DSBs) showed that chromosome dynamics are low and the number of DSBs accumulates during wakefulness. In turn, sleep increases chromosome dynamics, which are necessary to reduce the amount of DSBs. These results establish chromosome dynamics as a potential marker to define single sleeping cells, and propose that the restorative function of sleep is nuclear maintenance.