Cognitive Enhancement. Frontiers | Mechanisms of white matter change induced by meditation training | Cognition. 1Department of Psychology, University of Oregon, Eugene, OR, USA2Department of Psychological Sciences, Texas Tech University, Lubbock, TX, USA3Department of Anatomy and Neurobiology, School of Medicine, University of California, Irvine, Irvine, CA, USA Training can induce changes in specific brain networks and changes in brain state. In both cases it has been found that the efficiency of white matter as measured by diffusion tensor imaging is increased, often after only a few hours of training. In this paper we consider a plausible molecular mechanism for how state change produced by meditation might lead to white matter change. According to this hypothesis frontal theta induced by meditation produces a molecular cascade that increases myelin and improves connectivity. Keywords: theta rhythm, myelination, diffusion tensor imaging, meditation, fractional anisotropy (FA) Citation: Posner MI, Tang Y-Y and Lynch G (2014) Mechanisms of white matter change induced by meditation training.
Auditory driving of the autonomic nervous system: Listening to theta-frequency binaural beats post-exercise increases parasympathetic activation and sympathetic withdrawal. Brain is not fully mature until 30s and 40s. (PhysOrg.com) -- New research from the UK shows the brain continues to develop after childhood and puberty, and is not fully developed until people are well into their 30s and 40s.
The findings contradict current theories that the brain matures much earlier. Professor Sarah-Jayne Blakemore, a neuroscientist with the Institute of Cognitive Neuroscience at University College London, said until around a decade ago many scientists had "pretty much assumed that the human brain stopped developing in early childhood," but recent research has found that many regions of the brain continue to develop for a long time afterwards. The prefrontal cortex is the region at the front of the brain just behind the forehead, and is an area of the brain that undergoes the longest period of development. Prof. In earlier research Professor Blakemore studied the brains of teenagers in detail, as reported in PhysOrg. Explore further: Study: Our brains compensate for aging. First Alzheimer’s Treatment to Fully Restore Memory Functionality.
As anyone who has seen what Alzheimer’s can do to a person will tell you, it’s not pretty, it’s not fun and it’s one of the most difficult diseases to deal with for both parties. It’s difficult to watch those you love grow older, but when they begin forgetting everything and everyone around them it can be just as damaging to those around them. What makes this disease such a problem is that there have been no significant advances in curing it or reversing its effects since the initial discovery in 1906. The scientists and researchers from the Queensland Brain Institute at the University of Queensland have been working diligently to discover something that would help, and it appears they may have now found a viable treatment. To the best of our current knowledge about Alzheimer’s is that it’s brought on by the buildup of two different types of neural plaques – neurofibrillary clusters and amyloid plaques, both stemming from different proteins.
The Neuroscience of Somatic Attention: a key to unlocking a foundational contemplative practice for educators on Vimeo. NeuroSky | Body and Mind. Quantified. Mind-to-mind thought talking possible by 2030, scientist says. Today we enjoy basic conversations with our smart phone, desktop PC, games console, TV and soon, our car; but voice recognition, many believe, should not be viewed as an endgame technology. Although directing electronics with voice and gestures may be considered state-of-the-art today, we will soon be controlling entertainment and communications equipment not by talking or waving; but just by thinking! Forget Siri, if future-thinking researchers have their way, your brain could soon be chatting away on the phone.
A new implant developed by UC-Berkeley neuroscientist, Robert Knight, could create a game-changing relationship between you and your machines. You may soon be able to transmit thoughts via the Internet using a translator chip implanted in the brain that converts thoughts into words. Enter University of Reading's Dr. Kevin Warwick, whose cutting-edge neural implant research has enabled him to control machines and communicate with others using only thoughts and physical motions. New material gives visible light an infinite wavelength. Researchers from the FOM Institute AMOLF and the University of Pennsylvania have fabricated a material which gives visible light a nearly infinite wavelength.
The new metamaterial is made by stacking silver and silicon nitride nanolayers. It may find applications in novel optical components or circuits and the design of more efficient leds. The work will appear on October 13th in Nature Photonics. The phase velocity and group velocity of light dictate how light propagates in a material. The phase velocity determines how the peaks and valleys of the wave move in the material, whereas the group velocity describes the transport of energy. According to Einstein's laws, the transport of energy of light can never be faster than the speed of light. Metamaterials The research team now presents a metamaterial composed of a unit cell structure much smaller than the wavelength of light.
Explore further: Optics: Nanotechnology's benefits brought into focus. 'Metasurfaces' to usher in new optical technologies. (Phys.org) —New optical technologies using "metasurfaces" capable of the ultra-efficient control of light are nearing commercialization, with potential applications including advanced solar cells, computers, telecommunications, sensors and microscopes.
The metasurfaces could make possible "planar photonics" devices and optical switches small enough to be integrated into computer chips for information processing and telecommunications, said Alexader Kildishev, associate research professor of electrical and computer engineering at Purdue University. "I think we know enough at this point that we can realistically start to develop prototypes of devices for some applications," he said.
The promise of metasurfaces is described in an article appearing Friday (March 15) in the journal Science. The article was co-authored by Kildishev; Alexandra Boltasseva, an assistant professor of electrical and computer engineering; and Vladimir M. Light particles illuminate the vacuum. Researchers from the Finnish Aalto University and the Technical Research Centre of Finland succeeded in showing experimentally that vacuum has properties not previously observed. According to the laws of quantum mechanics, it is a state with abundant potentials. Vacuum contains momentarily appearing and disappearing virtual pairs, which can be converted into detectable light particles. The researchers conducted a mirror experiment to show that by changing the position of the mirror in a vacuum, virtual particles can be transformed into real photons that can be experimentally observed.
In a vacuum, there is energy and noise, the existence of which follows the uncertainty principle in quantum mechanics. If we act fast enough, we can prevent the particles from recombining – they will then be transformed into real particles that can be detected', says Dr. Sorin Paraoanu from Aalto University. Explore further: Could 'Jedi Putter' be the force golfers need? Researchers show that memories reside in specific brain cells. Our fond or fearful memories — that first kiss or a bump in the night — leave memory traces that we may conjure up in the remembrance of things past, complete with time, place and all the sensations of the experience. Neuroscientists call these traces memory engrams.
But are engrams conceptual, or are they a physical network of neurons in the brain? In a new MIT study, researchers used optogenetics to show that memories really do reside in very specific brain cells, and that simply activating a tiny fraction of brain cells can recall an entire memory — explaining, for example, how Marcel Proust could recapitulate his childhood from the aroma of a once-beloved madeleine cookie. In that famous surgery, Penfield treated epilepsy patients by scooping out parts of the brain where seizures originated. Fast forward to the introduction, seven years ago, of optogenetics, which can stimulate neurons that are genetically modified to express light-activated proteins.
False memory. Scientists create first computer-designed superconductor. (Phys.org) —A Binghamton University scientist and his international colleagues report this week on the successful synthesis of the first superconductor designed entirely on the computer. Their findings were published in Physical Review Letters, the leading journal in the field. Aleksey Kolmogorov, assistant professor of physics at Binghamton, proposed the new superconductor in Physical Review Letters in 2010 and then teamed up with leading experimental groups in Germany, Belgium, Italy and France to test the prediction. The synthesized material—a novel iron tetraboride compound—is made out of two common elements, has a brand-new crystal structure and exhibits an unexpected type of superconductivity for a material that contains iron, just as predicted in the original computational study.
"Paradigm-shifting superconducting materials have so far been discovered experimentally, and oftentimes accidentally," Kolmogorov says. Next, Kolmogorov plans to turn his attention to metal oxides. Nutritional supplement may help prevent Alzheimer's, research suggests. (Medical Xpress)—A nutritional supplement available over-the-counter may offer protection from Alzheimer's disease, a study by the University of Virginia and Northwestern University suggests. Researchers at Northwestern and U.Va.'s School of Medicine set out to evaluate the effectiveness of chiro-inositol, a compound that occurs naturally in certain foods and is available as a nutritional supplement, in protecting the brain from beta amyloid toxins, which cause Alzheimer's.
They conclude, in a paper published this month in The FASEB Journal, that chiro-inositol "greatly enhances" insulin's ability to prevent damage to neurons by toxic peptides called ADDLs. The damage and loss of neurons is believed responsible for Alzheimer's. The findings indicate potential for a new strategy for developing Alzheimer's disease treatments based on compounds already regarded as safe for human use, the researchers write.
More information: www.fasebj.org/content/27/1/199.full? The Open Source Data Science Masters. Breakthrough promises significantly more efficient solar cells. A new technique developed by U of T Engineering Professor Ted Sargent and his research group could lead to significantly more efficient solar cells, according to a recent paper published in the journal Nano Letters. The paper, "Jointly-tuned plasmonic-excitonic photovoltaics using nanoshells," describes a new technique to improve efficiency in colloidal quantum dot photovoltaics, a technology which already promises inexpensive, more efficient solar cell technology. Quantum dot photovoltaics offers the potential for low-cost, large-area solar power – however these devices are not yet highly efficient in the infrared portion of the sun's spectrum, which is responsible for half of the sun's power that reaches the Earth.
The solution? Spectrally tuned, solution-processed plasmonic nanoparticles. These particles, the researchers say, provide unprecedented control over light's propagation and absorption. "There are two advantages to colloidal quantum dots," Thon says. Eidetic memory. Overview The ability to recall images in great detail for several minutes is found in early childhood (between 2% and 10% of that age group) and is unconnected with the person's intelligence level.  Like other memories, they are often subject to unintended alterations. The ability usually begins to fade after the age of six years, perhaps as growing vocal skills alter the memory process. A few adults have had phenomenal memories (not necessarily of images), but their abilities are also unconnected with their intelligence levels and tend to be highly specialized.
In extreme cases, like those of Solomon Shereshevsky and Kim Peek, memory skills can actually hinder social skills. Persons identified as having a related condition known as Highly Superior Autobiographical Memory (HSAM) are able to remember very intricate details of their own personal life, but this ability seems not to extend to other, non-autobiographical information. Skeptical views Meditation found to increase brain size. Kris Snibbe/Harvard News Office Sara Lazar (center) talks to research assistant Michael Treadway and technologist Shruthi Chakrapami about the results of experiments showing that meditation can increase brain size.
People who meditate grow bigger brains than those who don’t. Researchers at Harvard, Yale, and the Massachusetts Institute of Technology have found the first evidence that meditation can alter the physical structure of our brains. Brain scans they conducted reveal that experienced meditators boasted increased thickness in parts of the brain that deal with attention and processing sensory input. In one area of gray matter, the thickening turns out to be more pronounced in older than in younger people. That’s intriguing because those sections of the human cortex, or thinking cap, normally get thinner as we age. The researchers compared brain scans of 20 experienced meditators with those of 15 nonmeditators. Study participants meditated an average of about 40 minutes a day.
Carl Sagan on Pot. This account was written in 1969 for publication in "Marihuana Reconsidered (1971)". Sagan was in his mid-thirties at that time. He continued to use cannabis for the rest of his life. The cannabis experience has greatly improved my appreciation for art, a subject which I had never much appreciated before. The understanding of the intent of the artist which I can achieve when high sometimes carries over to when I'm down. Thanks Josh! Auditory Processing Disorder. Listen About Auditory Processing Disorder Auditory processing disorder (APD), also known as central auditory processing disorder (CAPD), is a complex problem affecting about 5% of school-aged children.
These kids can't process the information they hear in the same way as others because their ears and brain don't fully coordinate. Something adversely affects the way the brain recognizes and interprets sounds, most notably the sounds composing speech. Kids with APD often do not recognize subtle differences between sounds in words, even when the sounds are loud and clear enough to be heard. Detecting APD Kids with APD are thought to hear normally because they can usually detect pure tones that are delivered one by one in a very quiet environment (such as a sound-treated room). However, the ability to detect the presence of sounds is only one part of the processing that occurs in the auditory system. Symptoms of APD can range from mild to severe and can take many different forms.
Causes Back. Auditory processing. Auditory Processing. Auditory Processing Info. Auditory processing disorder - NHS Choices. Auditory Processing Disorders. A twin study of auditory processing indicates that dichotic listening ability is a strongly heritable trait. Attention and Memory aspects of APD. Childhood auditory processing disorder as a developmental disorder: The case for a multi-professional approach to diagnosis and management. APDFacts. Auditory Processing Disorder. A randomized control trial of interventions in school-aged children with auditory processing disorders. Age effects and normative data on a Dutch test battery for auditory processing disorders. APD, ADD, ADHD and AD/HD: Personal and Scientific Reflections. APD Evaluation to Therapy: The Buffalo Model.
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It takes a team to differentially diagnose APD. Introduction to Auditory Processing Disorders. Contribution of the anterior insula to temporal auditory processing deficits in developmental dyslexia - 2008. Find a Professional: Online Directory of Audiology and Speech-Language Pathology Programs. Guest post: Auditory processing disorder – a cause of language problems or an incidental finding? Dichotic listening tests in the assessment of auditory processing disorders. Eartroubles.com. Eide Neurolearning Blog: Why Visual Distractibility Often Accompanies Auditory Processing Impairment. Downloads. Living with APD - A Teens Point of View: July 2011. LUCKER. Search Results: auditory processing disorders.
Central Auditory Processing Disorder (CAPD) in children: what is it and what are the issues surrounding it? 2000. NEUROBIOLOGY OF (CENTRAL) AUDITORY PROCESSING DISORDER AND LANGUAGE-BASED LEARNING DISABILITY. Motion quotient: IQ predicted by ability to filter motion (w/ video) SatPointer - Dish Alignment, Satellite Pointer and Direction Analyzer using Google Maps. Researchers find evidence of hot spot that burned eastern underside of US tectonic plate. Superconductivity to meet humanity's greatest challenges. New finding shows climate change can happen in a geological instant. J. C. R. Licklider. Development of an auditory test battery for young children: a pilot study; International Journal of Audiology - 43(6):Pages 330-338 - Informa Healthcare. Total Solar Eclipse 2017 - Eclipse Stories.
UCL Search - auditory processing disorder. Video: Making Sense of Listening: The IMAP Test Battery. New evidence that chronic stress predisposes brain to mental illness. Major Alzheimer's risk factor linked to red wine target. New clues illuminate Alzheimer's roots. Green tea extract interferes with the formation of amyloid plaques in Alzheimer's disease. Tesla Stock Today Looking A Lot Like General Motors In 1915. Man-Computer Symbiosis. Bernard Stiegler - La société automatique. The Scientists Preparing for The Apocalypse. Scientists Create Artificial Brain With 2.3 Million Simulated Neurons. Scientists have developed a prototype for self-replicating robots. «Made in France», la fiction qui avait précédé la réalité.
Non, les hommes n’ont pas toujours fait la guerre, par Marylène Patou-Mathis (Le Monde diplomatique, juillet 2015) Jim Jefferies - Guns Are Not Protection - from BARE - Netflix Special. Critic's Notebook: How 'Star Wars' Went From Shakespearean Saga to Harry Potter in Space. Enquête. Le client, ce patron impitoyable. J’ai discuté avec un salafiste: il n’avait rien d’un terroriste. Comment on pleurait, riait et aimait au Moyen Âge. Témoignage. Mon adieu à l’Amérique. Courez, ne faites pas le mort: les conseils des services anglais de lutte contre le terrorisme. Héros du «Saturday Night Live», Trump et Clinton sont les héritiers de Calvin. In Defense Of George Lucas. Exercer la peur en politique. This is actually what America would look like without gerrymandering.
La gauche radicale, «Star Wars» et la culture populaire. Inégalités : voulons-nous vraiment combattre l'injustice sociale ? Attentats du 13 novembre : l’improbable conversation d’Ali O. avec Salah Abdeslam. Grandeur et décadence de l'empire geek.