background preloader


Facebook Twitter

“They Basically Reset My Brain” MIT challenges New York Times over book on famous brain patient. [1704.03855] How brains are built: Principles of computational neuroscience. 521 532(jos) Spaceinvaders. Aging on Nautilus: Yes, Life in the Fast Lane Kills You. Nick Lane is an evolutionary biochemist at University College London who thinks about the big questions of life: how it began, how it is maintained, why we age and die, and why we have sex.

Aging on Nautilus: Yes, Life in the Fast Lane Kills You

Shunning the habit of our times to regard these as questions for evolutionary genetics, Lane insists that our fundamental biochemical mechanisms—particularly those through which living cells generate energy—may determine or limit these facts of life. Lane has been steadily constructing an alternative, complementary view of evolution to the one in which genes compete for reproductive success and survival. Scratching is catching in mice. Catch sight of someone scratching and out of nowhere comes an itch, too.

Scratching is catching in mice

Now, it turns out mice suffer the same strange phenomenon. Tests with mice that watched itchy neighbors, or even just videos of scratching mice, provide the first clear evidence of contagious scratching spreading mouse-to-mouse, says neuroscientist Zhou-Feng Chen of Washington University School of Medicine in St. Louis. The quirk opens new possibilities for exploring the neuroscience behind the spread of contagious behaviors. For the ghostly itch, experiments trace scratching to a peptide nicknamed GRP and areas of the mouse brain better known for keeping the beat of circadian rhythms, Chen and colleagues found. How Brain Scientists Forgot That Brains Have Owners - The Atlantic. It’s a good time to be interested in the brain.

How Brain Scientists Forgot That Brains Have Owners - The Atlantic

Neuroscientists can now turn neurons on or off with just a flash of light, allowing them to manipulate the behavior of animals with exceptional precision. They can turn brains transparent and seed them with glowing molecules to divine their structure. They can record the activity of huge numbers of neurons at once. And those are just the tools that currently exist. A giant neuron found wrapped around entire mouse brain. Allen Institute for Brain Science A digital reconstruction of a neuron that encircles the mouse brain.

A giant neuron found wrapped around entire mouse brain

Like ivy plants that send runners out searching for something to cling to, the brain’s neurons send out shoots that connect with other neurons throughout the organ. A new digital reconstruction method shows three neurons that branch extensively throughout the brain, including one that wraps around its entire outer layer. The finding may help to explain how the brain creates consciousness. Split brain does not lead to split consciousness. A depiction of the traditional view of the split brain syndrome (top) versus what the researchers actually found in two split-brain patients across a wide variety of tasks (bottom).

Split brain does not lead to split consciousness

Credit: Yair Pinto A new research study contradicts the established view that so-called split-brain patients have a split consciousness. Instead, the researchers behind the study, led by UvA psychologist Yair Pinto, have found strong evidence showing that despite being characterised by little to no communication between the right and left brain hemispheres, split brain does not cause two independent conscious perceivers in one brain. Brain’s connections which keep related memories distinct from each other, identified in new study. Credit: University of Bristol Neuroscientists at the University of Bristol are a step closer to understanding how the connections in our brain which control our episodic memory work in sync to make some memories stronger than others.

Brain’s connections which keep related memories distinct from each other, identified in new study

The findings, published in Nature Neuroscience, reveal a previously unsuspected division of memory function in the pathways between two areas of the brain, and suggest that certain subnetworks within the brain work separately, to enhance the distinctiveness of memories. The team studied the hippocampus and prefrontal cortex—two regions of the brain critical to memory function—as damage in these areas can induce severe memory loss.

Both areas are connected by a complex network of direct and indirect pathways, and the challenge has been until now, how to identify the precise routes through which these brain regions interact in memory formation. Brain’s connections which keep related memories distinct from each other, identified in new study. America's Long-Overdue Opioid Revolution Is Finally Here. A bunion, you may have the misfortune to know, is a bony growth that forms at the base of your big toe.

America's Long-Overdue Opioid Revolution Is Finally Here

When that bump begins to irritate the rest of your foot, it has to go. Wincing would be the correct reaction here. On the pain scale, a bunionectomy doesn’t compare to having a limb sawn off; nor is it particularly medically risky. But since it “involves shaving off extra bone and cutting the big toe in half and pinning it back together,” says David Soergel, chief medical officer of the pharmaceutical company Trevena Inc, “it’s actually a very painful surgery.” That wince-worthy quality makes it the perfect surgery on which to test cutting-edge new pain relievers—such as Oliceridine, Trevena’s newest and most promising opioid compound. For more than 200 years, doctors have soothed their patients’ pain with morphine, the drug isolated from the opium poppy and named after Morpheus, Greek god of dreams. Paralyzed man regains use of arms and hands after experimental stem cell therapy at Keck Hospital of USC. September 7, 2016 Kris Boesen and his father Rodney (Photo by Greg Iger) By Meg Aldrich Keck Medical Center of USC today announced that a team of doctors became the first in California to inject an experimental treatment made from stem cells, AST-OPC1, into the damaged cervical spine of a recently paralyzed 21-year-old man as part of a multi-center clinical trial.

Paralyzed man regains use of arms and hands after experimental stem cell therapy at Keck Hospital of USC

On March 6, just shy of his 21st birthday, Kristopher (Kris) Boesen of Bakersfield suffered a traumatic injury to his cervical spine when his car fishtailed on a wet road, hit a tree and slammed into a telephone pole. Special Report: New Study Finds Performance-Enhancing Drugs for Chess. It is the first time that drugs have been found to improve chess performance under rigorous scientific conditions.

Special Report: New Study Finds Performance-Enhancing Drugs for Chess

The results of the ground-breaking study have been published in a leading scientific journal. Since 1999, the World Chess Federation, which is also as known as FIDE, has had scorn regularly heaped on it for having a drug testing policy and for testing top players at major events. The federation did not put the policy in place because it believed it had a drug problem, but to satisfy the International Olympic Committee, which requires that all sports that it recognizes have such a program. The drugs are methylphenidate, which is most commonly marketed as Ritalin (by Novartis), and modafinil, which is sold as Alertec, Modavigil and Provigil. How LSD Binds to the Brain, and Why Trips Last So Long.

It’s always been a bit of a mystery why LSD is such a potent hallucinogen.

How LSD Binds to the Brain, and Why Trips Last So Long

Unlike most similar drugs, it takes only a very small dose—say around 100 micrograms—to have strong effects that last 12 hours or longer. Now, for the first time, researchers have caught LSD (or lysergic acid diethylamide) in the act of binding to a receptor in the brain, something various researchers have attempted since the drug began to be studied in the 1950s. Try Newsweek for only $1.25 per week. Sat-nav neurons tell bats where to go. Haim Ziv Egyptian fruit bats navigate their angle and distance of flight to specific destinations using special vector neurons. Bats have brain cells that keep track of their angle and distance to a target, researchers have discovered. The neurons, called ‘vector cells’, are a key piece of the mammalian’s brain complex navigation system — and something that neuroscientists have been seeking for years. Our brain’s navigation system has many types of cells, but a lot of them seem designed to keep track of where we are. Researchers know of ‘place’ cells, for example, which fire when animals are in a particular location, and ‘head direction’ cells that fire in response to changes in the direction the head is facing.

The vector cells, by contrast, keep spatial track of where we are going. Poet: I can’t answer questions on Texas standardized tests about my own poems. Sara Holbrook. (Jennifer Hearn) Badly worded or poorly conceived questions on standardized tests are not uncommon (remember the question about a “talking pineapple” on a New York test in 2012?). But here’s something new: The author of source material on two Texas standardized tests says she can’t actually answer the questions about her own work because they are so poorly conceived. She also says she can’t understand why at least one of her poems — which she calls her “most neurotic” — was included on a standardized test for students. The author is Sara Holbrook, who has written numerous books of poetry for children, teens and adults, as well as professional books for teachers.

Science AMA Series: We are the neuroscientists who started the Open Neuroimaging Lab, a winner of the Open Science Prize - AMA : science. The Brainless Slime That Can Learn By Fusing - The Atlantic. Sometimes, Audrey Dussutour enters her lab in Toulouse to find that one of the creatures within it has escaped. They tend to do so when they’re hungry. One will lift the lid of its container and just crawl out. These creatures aren’t octopuses, which are known for their escape artistry.

Neuroanatomy & Neurons

Mental Function. Awesome History. Clinical Neuro. Nature, Nurture, & Development. Brain&Mind Video. Zombie Parasites. Psychiatrists Must Face Possibility That Medications Hurt More Than They Help - Scientific American Blog Network. Two new posts on this website have me contemplating, once again, the terrible possibility that psychiatry is hurting more people than it helps. Reporter Sarah G. Miller notes in “1 in 6 Americans Takes a Psychiatric Drug” that prescriptions for mental illness keep surging.

As of 2013, almost 17 percent of Americans were taking at least one psychiatric drug, up from 10 percent in 2011, according to a new study. Miller elaborates: “Antidepressants were the most common type of psychiatric drug in the survey, with 12 percent of adults reporting that they filled prescriptions for these drugs… In addition, 8.3 percent of adults were prescribed drugs from a group that included sedatives, hypnotics and anti-anxiety drugs, and 1.6 percent of adults were given antipsychotics.” This increase in medications must be boosting our mental health, right? Study Links Gut Bacteria to Parkinson’s Disease. The exact cause of Parkinson’s disease isn’t known. Genetics and environment are possible factors, but now researchers say gut bacteria could contribute to the nervous system disorder.

Changes in bacteria, or the bacteria themselves, contribute to — and may even cause — motor skill decline, the scientists concluded. The Structural and functional connectivity of the amygdala. Neuro3(2)


Brain & Sex. Brain News & Random Topics. Teaching Neuro. Rhythms of the brain, Buzsaki 2008 (Rhythms of the Brain, Book, Buzsaki 2008.pdf) - PDF Archive. Brain Energy. Sleep. Hemispheric Asymmetry. Computational. Brain-Computer. Writing Quality. Greenberg Educational Consulting Organization. BrainBusiness. Blindness & Brain. ‘Shock Therapy’ Is Saving Some Children With Autism From Self-Harm - The Atlantic.

Midget pathways of the primate retina underlie resolution and red green color opponency by Helga Kolb. Helga Kolb 1. General characteristics. Wehi. These 3D Animations Will Take You Inside The Human Body (Online) Common prostate cancer treatment linked to later dementia, researcher says. The team looked at deidentified records from Stanford Medicine’s clinical-research data warehouse for nearly 10,000 patients with prostate cancer. Of the 1,829 who received androgen deprivation therapy, 7.9 percent developed dementia within five years, compared with 3.5 percent of those not treated with ADT. “The risk is real and, depending on the prior dementia history of the patient, we may want to consider alternative treatment, particularly in light of a recent prospective study from the U.K.,” said Shah. Inside the Brain of the World’s Most Famous Amnesiac. Henry Molaison, better known as ‘Patient H.M.’ (Photo: Twitter)

The Myth of the Rational Actor. February 5. GetSharedSiteSession?rc=4&redirect= Gendron barrett 2009. GetSharedSiteSession?rc=4&redirect= To view the full text, please login as a subscribed user or purchase a subscription. Click here to view the full text on ScienceDirect. Figure 1. Neuroscience Fundamentals - Psychiatric Drugs and The Brain. Asset. Elon Musk is Looking to Kickstart Transhuman Evolution With "Brain Hacking" Tech.

Striatal Functional Alteration in Adolescents Characterized by Early Childhood Behavioral Inhibition. THE BRAIN FROM TOP TO BOTTOM. Brain mechanisms of Freudian repression – Neurophilosophy. SP6 - Brain Simulation. Neuroscientists create ‘atlas’ showing how words are organised in the brain. What It’s Like to ‘Wake Up’ From Autism. Brief dark exposure restored ocular dominance plasticity in aging mice and after a cortical stroke. Avian Brain & Senses. Stroeckens12 thalamofugal%20pathway pigeon. Neuroscientists: Specific Brain Waves Synchronize Brain Regions During Fear Behavior. Candide. Kolmogorov download. ARTNATOMY/ARTNATOMIA - Home. Researchers figure out similarities in brain architecture between birds and apes. Bees 'dumb down' after ingesting tiny doses of the pesticide chlorpyrifos.

Blog.sfgate. The Smell Report - The human sense of smell. 10 Marvin Minsky Quotes That Reflect What a Visionary He Was. Think Twice: How the Gut's "Second Brain" Influences Mood and Well-Being. 63 S191. Contribution of substantia nigra glutamate to prediction error signals in schizophrenia: a combined magnetic resonance spectroscopy/functional imaging study : npj Schizophrenia.

Prediction Error Meta-Analysis. MRI Explained — Functional MRI of the Brain (FMRIB)


Stress signalling pathways that impair prefrontal cortex structure and function. To File. 2012_4_10_Stress_Shut_%20Down_Brain.pdf. Neurons can be reprogrammed to switch the emotional association of a memory. How curiosity changes the brain to enhance learning. Does researching casual marijuana use cause brain abnormalities? Microsoft Word - EMOTION04.doc - neuro5(2).pdf. Neuroscience Information Framework - Search for Neuroscience Resources. 8722.full.pdf. SNHU BioPsy. The WWW Virtual Library. The World-Wide Web Virtual Library: Neuroscience (Biosciences) Thesis Creator. Academic Dishonesty and Plagiarism.

MAPS: Multidisciplinary Association for Psychedelic Studies. Nucleus basalis-enabled stimulus-specific plasticity in the visual cortex is mediated by astrocytes. The Learning Brain: Neuroscience - BioEd Online.