Archive for the ‘neuroscience’ category: Page 947
Jan 22, 2016
I’ve heard that lobsters live forever, and they don’t actually age. Is this true, and could I keep one alive forever in an aquarium (assuming I could provide food)?
Posted by Montie Adkins in categories: biotech/medical, food, health, life extension, neuroscience
Stanford used modified messenger RNA to extend the telomeres so the whole process if it translates effectively into humans — and the evidence is suggesting it will — would be pretty straightforward especially when you consider the degree of extension which is 1000 nucleotides and the fact that the telomerase which lengthens the telomeres is only active in the body for 48 hours which means there is no significant risk of cancer due to the limited time during which proliferation of the cells could take place.
It’s true that Lobsters defy the normal aging process which in humans increases the risk of heart disease, stroke, cancer, Alzheimer’s and diabetes in humans but not only that they actually become stronger and bigger with age each time they shed their shell whereas humans and other mammals are completely the opposite suffering muscle loss, stiffness and elevated risk of fractures etc. Lobsters just keep growing and can grow to a colossal size over the years there is information on a 95 year old 23 pounder (10.5kg) here http://www.cbsnews.com/news/95-year-old-lobster-featured-at-…estaurant/
Normally a lobster dies because it is eaten by a predator I.e us!, suffers an injury or gets a disease. we know the reason they remain fit and strong and it lies in their use of telomerase to protect their DNA and prevent their telomeres shortening and as a result protecting their cells from dying they also have a vast supply of stem cells which can turn into any into any type body of tissue and this will be one of our main tools for biomedical repairs in the future along with telomere lengthening as explained below because if we can extend our telomeres we will also hold one of the keys to life extension.
Jan 21, 2016
Researchers Use Modified Rabies Viruses To Map The Brain
Posted by Karen Hurst in categories: biotech/medical, neuroscience
Talk about a bold and unique method for mapping the human brain — using a modified version of the rabies virus to help researcher to rapidly map the brain.
Researchers have figured out a way to leverage rabies to not kill the brain, but instead map it.
Jan 21, 2016
This Man Controls His Bionic Arm With His Brain
Posted by Bryan Gatton in categories: biotech/medical, cyborgs, neuroscience, transhumanism
Doctors rewired Johnny Matheny’s nerves to work directly with his new prosthetic arm, which works exactly like a real arm.
Jan 21, 2016
Memory capacity of brain is 10 times more than previously thought
Posted by Montie Adkins in categories: bioengineering, computing, neuroscience
In a computational reconstruction of brain tissue in the hippocampus, Salk and UT-Austin scientists found the unusual occurrence of two synapses from the axon of one neuron (translucent black strip) forming onto two spines on the same dendrite of a second neuron (yellow). Separate terminals from one neuron’s axon are shown in synaptic contact with two spines (arrows) on the same dendrite of a second neuron in the hippocampus. The spine head volumes, synaptic contact areas (red), neck diameters (gray) and number of presynaptic vesicles (white spheres) of these two synapses are almost identical. (credit: Salk Institute)
Salk researchers and collaborators have achieved critical insight into the size of neural connections, putting the memory capacity of the brain far higher than common estimates. The new work also answers a longstanding question as to how the brain is so energy efficient, and could help engineers build computers that are incredibly powerful but also conserve energy.
Continue reading “Memory capacity of brain is 10 times more than previously thought” »
Jan 20, 2016
DARPA wants to build wetware so we can mind control computers
Posted by Shailesh Prasad in categories: biotech/medical, cyborgs, electronics, engineering, neuroscience, supercomputing
Hot damn, our Ghost in the Shell future is getting closer by the day. DARPA announced on Tuesday that it is interested in developing wetware — implantable brain-machine interfaces (BMI) that will allow their users to control computers with their thoughts. The device, developed as part of the Neural Engineering System Design (NESD) program, would essentially translate the chemical signals in our neurons into digital code. What’s more, DARPA expects this interface to be no larger than two nickels stacked atop one another.
“Today’s best brain-computer interface systems are like two supercomputers trying to talk to each other using an old 300-baud modem,” Phillip Alvelda, the NESD program manager, said in a statement. “Imagine what will become possible when we upgrade our tools to really open the channel between the human brain and modern electronics.”
The advanced research agency hopes the device to make an immediate impact — you know, once it’s actually invented — in the medical field. Since the proposed BMI would connect to as many as a million individual neurons (a few magnitudes more than the 100 or so that current devices can link with), patients suffering from vision or hearing loss would see an unprecedented gain in the fidelity of their assistive devices. Patients who have lost limbs would similarly see a massive boost in the responsiveness and capabilities of their prosthetics.
Jan 20, 2016
Lab Grown Neural Networks Could Repair Axonal Damage With Minimal Brain Tissue Disruption
Posted by Shailesh Prasad in category: neuroscience
New researcher suggests engineered neural networks have the ability to replace and repair lost axonal tracks in the brains of patients with Alzheimer’s disease and those with brain injuries.
Jan 20, 2016
Weak electrical field found to carry information around the brain
Posted by Shailesh Prasad in category: neuroscience
Researchers have identified slow-moving brainwaves they say could be carried only by the brain’s gentle electrical field, a mechanism previously thought to be incapable of spreading neural signals on its own.
Jan 20, 2016
15 Hottest Models Who Live With Chronic Diseases or Disabilities
Posted by Shailesh Prasad in categories: biotech/medical, neuroscience
Do you look at models and just think that they are the lucky ones who were just born perfect? Well think again! Models are just like us. Sure, they are super-duper attractive and make a lot of money for posing and wearing expensive clothes…but other than that, many fashion models could be our next-door neighbors! Case in point: these 20 Hottest Models Who Live with Chronic Diseases. Many of these people are breaking boundaries and challenging the long-held norms and beliefs that are attached to the modeling industry.
It truly is an inspiration to see these people changing the landscape of who can be a model. We have people here who have debilitating diseases, have overcome mental illnesses, and have accomplished so much for the marginalized groups of people that have just as much right to happiness as average folks. They span the United States, Australia, the United Kingdom and beyond. Their presence and accomplishments range from the past and segue into the future. We can’t wait to see how the modeling scene continues to change.
If you ever thought that you couldn’t be as flawless as a supermodel, think again. The truth is that no one is flawless, and our imperfections and struggles are what make us human!
Jan 19, 2016
A self-assembling molecular nanoswitch
Posted by Karen Hurst in categories: electronics, nanotechnology, neuroscience, supercomputing
Interesting article about nanoswitches and how this technology enables the self-assembly of molecules. This actually does help progress many efforts such as molecular memory devices, photovoltaics, gas sensors, light emission, etc. However, I see the potential use in nanobot technology as it relates to future alignment mappings with the brain.
Molecular nanoswitch: calculated adsorption geometry of porphine adsorbed at copper bridge site (credit: Moritz Müller et al./J. Chem. Phys.)
Technical University of Munich (TUM) researchers have simulated a self-assembling molecular nanoswitch in a supercomputer study.
