Archive for the ‘neuroscience’ category: Page 908
A device the size of a matchstick, implanted next to the brain’s motor cortex, could one day help paralysed people move their limbs.
May 29, 2016
We talked to futurists about what sleep will be like in 2030
Posted by Karen Hurst in categories: futurism, neuroscience
Interesting.
Futurists are accustomed to launching headfirst into some very complex subjects, but even the most high-minded and enthusiastic of prognosticators may take a pass when it comes to dealing with the future of sleep.
That’s no cop out.
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May 29, 2016
More Efficient CRISPR Gene Editing May Potentially Help Cure Diseases
Posted by Karen Hurst in categories: bioengineering, biotech/medical, genetics, neuroscience
Awesome.
Researchers have developed a new gene editing tool that is more efficient and easier to use. CRISPR-EZ addresses the issue of target RNA accuracy and embryo viability in IVF transgenic mice.
( andrew modzelewski/lin he | university of california berkeley )
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May 29, 2016
New discovery from the molecular machinery for depression and addiction
Posted by Bruno Henrique de Souza in categories: biotech/medical, neuroscience
When nerve cells have to communicate with each other in our brains, it involves release of neurotransmitters acting as messengers at neural synapses. Here the released neurotransmitter is bound and registered by receptors at the surface of the receiving nerve cell. This will, in turn, trigger a signal which is sent on to other nerve cells. The circuits in the brain using the neurotransmitters noradrenaline, dopamine, GABA and serotonin are known to play an important role in mood, reward and mental well-being, and they also have a key role to in mental disorders such as addiction and depression.
After release of neurotransmitters between nerve cells, they must, however, be removed again to end the signal. This is done by a family of transport proteins which function as molecular vacuum cleaners in the cell membrane of the nerve cell where they pump the neurotransmitter back into the nerve cell for later reuse. This transport is of great importance to the signaling between the nerve cells, but happens relatively slowly. A collaborative project between researchers from Aarhus University has made it possible to explain what happens in the crucial rate-limiting step in the transport process for neurotransmitters such as serotonin, noradrenaline, GABA and dopamine which are all transported by related proteins with the same mechanism.
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May 28, 2016
The Evolutionary Argument Against Reality
Posted by Karen Hurst in categories: evolution, neuroscience, quantum physics
Interesting.
The cognitive scientist Donald Hoffman believes that evolution and quantum mechanics conspire to make objective reality an illusion.
May 27, 2016
This cognitive scientist says the world as we know it is an illusion
Posted by Sean Brazell in category: neuroscience
The cognitive scientist Donald Hoffman uses evolutionary game theory to show that our perceptions of an independent reality must be illusions.
May 25, 2016
Investigating how ‘chemo brain’ develops in cancer patients
Posted by Karen Hurst in categories: biotech/medical, neuroscience
Interesting read on Chemo’s impact on the brain and brain functioning known as Chemo Brain.
During and after chemotherapy, many cancer patients describe feeling a mental fog, a condition that has been dubbed “chemo brain.” Why this happens is unclear, but researchers have found a new clue to understanding this syndrome. A study in the journal ACS Chemical Neuroscience reports that chemotherapy in rats affects their chemical messengers dopamine and serotonin, which are associated with cognition.
May 25, 2016
Poverty marks a gene, predicting depression
Posted by Karen Hurst in categories: biological, genetics, neuroscience
Not surprised;
A long line of research links poverty and depression. Now, a study by Duke University scientists shows how biology might underlie the depression experienced by high-risk adolescents whose families are socio-economically disadvantaged.
The study, published May 24, 2016 in the journal Molecular Psychiatry, combined genetics, brain imaging and behavioral data gathered as adolescents were followed for more than three years as part of a larger study.
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May 25, 2016
Implanted electrodes to aid memory loss? It’s not as far-fetched as it may sound
Posted by Klaus Baldauf in categories: biotech/medical, neuroscience
Imagine implanting electrodes in the hippocampus to help brain-injured patients process memories. That’s what the Defense Department is attempting.