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Archive for the ‘neuroscience’ category: Page 696

Dec 18, 2018

Incredible battery-free implant battles obesity

Posted by in categories: biotech/medical, neuroscience

A remarkable new implantable device developed by engineers at University of Wisconsin–Madison promises a new way to battle obesity. By gently stimulating a nerve that links the stomach to the brain, the device tricks your brain into thinking you’re full.

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Dec 17, 2018

Nace el primer ordenador cuántico con una IA integrada

Posted by in category: neuroscience

Un equipo ha implementado, por primera vez, un perceptr\xF3n, la unidad b\xE1sica de las redes neuronales del aprendizaje profundo, en un procesador cu\xE1ntico de cinco c\xFAbits y ha demostrado que funciona. Parece que la nueva revoluci\xF3n del procesamiento de informaci\xF3n est\xE1 cada vez m\xE1s cerca.

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Dec 17, 2018

Best Friends Really Do Share Brain Waves, Say Scientists

Posted by in category: neuroscience

Tag your bestie if you’ve ever “been on the same wavelength.”

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Dec 17, 2018

Type 2 diabetes and cognitive decline: Study finds link

Posted by in categories: biotech/medical, neuroscience

New research examines cognitive function and brain atrophy in both people with and without type 2 diabetes over the course of approximately 5 years.

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Dec 17, 2018

An ant colony has memories that its individual members don’t have

Posted by in category: neuroscience

Why your brain is like an ant colony: they both get wiser and more stable by using collective memory for learning.

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Dec 16, 2018

New Neurons For the Brain

Posted by in categories: biotech/medical, neuroscience

When it comes to recovering from insult, the adult human brain has very little ability to compensate for nerve-cell loss. Biomedical researchers and clinicians are therefore exploring the possibility of using transplanted nerve cells to replace neurons that have been irreparably damaged as a result of trauma or disease. However, it is not clear whether transplanted neurons can be integrated sufficiently, to result in restored function of the lesioned network. Now researchers at the Max Planck Institute of Neurobiology in Martinsried, the Ludwig Maximilians University Munich, and the Helmholtz Zentrum München have demonstrated that, in mice, transplanted embryonic nerve cells can indeed be incorporated into an existing network and correctly carry out the tasks of damaged cells originally found in that region.

Neurodegenerative diseases such as Alzheimer’s or Parkinson’s disease, but also stroke or certain injuries lead to a loss of brain cells. The mammalian brain can replace these cells only in very limited areas, making the loss in most cases a permanent one. The transplantation of young nerve cells into an affected network of patients, for example with Parkinson’s disease, allow for the possibility of a medical improvement of clinical symptoms. However, if the nerve cells transplanted in such studies help to overcome existing network gaps or whether they actually replace the lost cells, remained unknown.

In the joint study, researchers of the Max Planck Institute of Neurobiology, the Ludwig Maximilians University Munich, and the Helmholtz Zentrum München have specifically asked whether transplanted embryonic nerve cells can functionally integrate into the visual cortex of adult mice. The study was supported by the center grant (SFB) 870 of the German Research Foundation (DFG). “This brain region is ideal for such experiments,” says Magdalena Götz, joint leader of the study together with Mark Hübener, who continues to explain: “By now, we know so much about the functions of the nerve cells in the visual cortex and the connections between them that we can readily assess whether the new nerve cells actually perform the tasks normally carried out by the network.”

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Dec 16, 2018

Internet-based CBT effective for treating severe depression

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

People with depression also tend to “visit primary care physicians more often than others,” explains Prof. Lorenzo-Luaces. “They have more medical problems, and their depression sometimes gets in the way of their taking their medication for other medical problems.”

So, for the new review, the team examined 21 existing studies using meta-regression analysis. The analysis concluded that CBT apps were effective for treating mild, moderate, and severe depression.

Some of the trials included in the review compared a CBT app with a sham app. In these studies, the real apps were also significantly more effective at treating depression.

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Dec 16, 2018

Brainwaves suppress obvious ideas to help us think more creatively

Posted by in category: neuroscience

The human brain needs to suppress obvious ideas in order to reach the most creative ones, according to scientists at Queen Mary University of London and Goldsmiths, University of London.

Creativity requires us to break away from more common and easily reached ideas but we know little about how this happens in our .

A new study, published in the Proceedings of the National Academy of Sciences, shows that brainwaves play a crucial role in inhibiting habitual thinking modes to pave the way to access more remote ideas.

Continue reading “Brainwaves suppress obvious ideas to help us think more creatively” »

Dec 16, 2018

The Physics of Death (and What Happens to Your Energy When You Die)

Posted by in categories: life extension, neuroscience, physics, space

When we die, our energy is redistributed throughout the universe according to the law of conservation of energy. While this should not be confused with our consciousness living forever, our energy continuing after we’re gone could make death a less scary prospect.

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Dec 16, 2018

Unpacking pain: what causes it and why it’s hard to measure

Posted by in category: neuroscience

Past experience matters too. For example, if the last time a person felt a twinge in their lower back it developed into sciatica, with significant pain that took months of therapy to come right, the next time they experience a twinge in their back the person is likely to experience more anxiety and pain. Pain, you see, isn’t an input to the body, rather pain is an output of the brain’s threat detection system.

Another major factor is a person’s current state of mind. They may rate a noxious stimulus differently from day to day, or even within a day. Indeed, from your own experiences, you might appreciate that pain associated with an injury isn’t constant throughout the day.

There’s also significant variation in pain sensitivity and tolerance between people.

Continue reading “Unpacking pain: what causes it and why it’s hard to measure” »