Dieting Forces Brain To Eat Itself

A cross-section of the human brain

Dieting Forces Brain To Eat Itself, Scientists Claim -- The Telegraph

Dieters struggle to lose weight because a lack of nutrition forces their brain cells to eat themselves, making the feeling of hunger even stronger, scientists claim.

Like other parts of the body, brain cells begin to eat themselves as a last-ditch source of energy to ward off starvation, a study found.

The body responds by producing fatty acids, which turn up the hunger signal in the brain and increase our impulse to eat.

Researchers from the Albert Einstein College of Medicine at Yeshiva University in New York said the findings could lead to new scientifically proven weight loss treatments.

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'Brain Cap' Technology Turns Thought Into Motion

University of Maryland associate professor of kinesiology Jose "Pepe" Contreras-Vidal wears his Brain Cap, a noninvasive, sensor-lined cap with neural interface software that soon could be used to control computers, robotic prosthetic limbs, motorized wheelchairs and even digital avatars. (Credit: John Consoli, University of Maryland)

'Brain Cap' Technology Turns Thought Into Motion; Mind-Machine Interface Could Lead to New Life-Changing Technologies for Millions of People

"Brain cap" technology being developed at the University of Maryland allows users to turn their thoughts into motion. Associate Professor of Kinesiology José 'Pepe' L. Contreras-Vidal and his team have created a non-invasive, sensor-lined cap with neural interface software that soon could be used to control computers, robotic prosthetic limbs, motorized wheelchairs and even digital avatars.

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How the Brain Processes Faces

Stimuli were matched with respect to low-level properties, external features and high-level characteristics. (Credit: Face images courtesy of the Face-Place Database Project, Copyright 2008, Michael J. Tarr)

How the Brain Processes Faces: Neural System Responsible for Face Recognition Discovered -- Science Daily

ScienceDaily (June 1, 2011) — Each time you see a person that you know, your brain rapidly and seemingly effortlessly recognizes that person by his or her face.

Until now, scientists believed that only a couple of brain areas mediate facial recognition. However, Carnegie Mellon University's Marlene Behrmann, David Plaut and Adrian Nestor have discovered that an entire network of cortical areas work together to identify faces. Published in the current issue of the Proceedings of the National Academy of Sciences (PNAS), their findings will change the future of neural visual perception research and allow scientists to use this discovery to develop targeted remedies for disorders such as face blindness.

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10 Incredible Facts About The Human Brain

10 astounding facts about the human brain

10 Astounding Facts About The Human Brain -- The Telegraph

Last night, BBC One's Inside the Human Body focused on the brain. Here are ten remarkable facts about our most complex organ.

* The human brain is so sophisticated it takes nearly 20 years to mature

* In the womb, humans grow 8,000 new brain cells every second

* By the time humans are born they have all the brain cells they will ever need

* The human brain is the "most sophisticated thing" in the known universe

* New-born babies can recognise their mother’s face after just a few hours

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Reverse Engineering The Brain

RUBI the robot tutor interacting with children in San Diego. RUBI is an acronym for Robot Using Bayesian Inference. Credit: University of California at San Diego

Reverse Engineering The Brain -- Cosmos

SYDNEY: Can we really create a computer which can discern complex patterns, recognise facial expressions, decode meaning from speech and even understand our emotions? It's only a matter of time, says a leading researcher.

That’s the vision that drives Terrence Sejnowski, a leading authority on computational neuroscience who is trying to understand the inner-workings of the human brain – how we learn, form memories and interact with our environment – in order to develop computer devices that can emulate these processes.

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Are Criminal Minds Different From Yours?

CT scans of a human brain. CREDIT: Dreamstime

Criminal Minds Are Different From Yours, Brain Scans Reveal -- Live Science

The latest neuroscience research is presenting intriguing evidence that the brains of certain kinds of criminals are different from those of the rest of the population.

While these findings could improve our understanding of criminal behavior, they also raise moral quandaries about whether and how society should use this knowledge to combat crime.

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My Comment: Hmmm .... this is going to open a Pandora's box.

Are We Becoming More Stupid? Human Brain Has Been 'Shrinking For The Last 20,000 Years'

Old big head: A 3D image replica of a 28,000-year-old skull found in France shows it was 20 per cent larger than ours

From The Daily Mail:

It's not something we'd like to admit, but it seems the human race may actually be becoming increasingly dumb.

Man's brain has been gradually shrinking over the last 20,000 years, according to a new report.

This decrease in size follows two million years during which the human cranium steadily grew in size, and it's happened all over the world, to both sexes and every race.

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My Comment: Are we devolving?

Instant Expert: Rebuilding Human Minds

Memory Lost, Memory Gained koppillustration.com

From Popular Science:

Scientists hope to strengthen aging brains by tweaking the behavior of DNA.

Age-related memory loss—the kind where you remember friends from decades ago but can’t remember your grandchildren—is largely a mystery, but a class of com-pounds used to treat cancer has given neuroscientists clues to its molecular underpinnings. Scientists also suspect that the compounds responsible for this insight, called histone deacetylase inhibitors, could significantly slow memory loss—perhaps for years. (Two drugs used now to treat memory loss and Alzheimer’s disease work only for a short time.)

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Mapping The Brain On A Massive Scale

Image: Charting the brain: Scientists will use both structural and functional brain imaging to create detailed maps of 1,200 human brains. In the top image, areas in yellow and red are structurally connected to the area indicated by the blue spot. In the bottom image, areas in yellow and red are those that are functionally connected to the blue spot. Credit: David Van Essen, Washington University

From Technology Review:

Scanning 1,200 brains could help researchers chart the organ's fine structure and better understand neurological disorders.

A massive new project to scan the brains of 1,200 volunteers could finally give scientists a picture of the neural architecture of the human brain and help them understand the causes of certain neurological and psychological diseases.

The National Institutes of Health announced $40 million in funding this month for the five-year effort, dubbed the Human Connectome Project. Scientists will use new imaging technologies, some still under development, to create both structural and functional maps of the human brain.

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Brain Matter Linked To Introspective Thinking

Views of the inflated cortical surface showing areas of brain grey matter correlating with introspective accuracy. Credit: Science/AAAS

From Cosmos:

WASHINGTON: People with a greater capacity for introspection have more grey matter in certain regions of their brains, according to a recent study.

Comparing the magnetic resonance imaging (MRI) scans from the brains of 32 research subjects, scientists established a link between introspective ability and the size and structure of a small area of the anterior prefrontal cortex - the part of the brain associated with ‘higher-thinking’ skills.

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'Mind-Reading Machine' Can Convert Thoughts Into Speech

Photo: GETTY IMAGES

From The Telegraph:

A mind reading machine is a step closer to reality after scientists discovered a way of translating people's thoughts into words.

Researchers have been able to translate brain signals into speech using sensors attached to the surface of the brain for the first time.

The breakthrough, which is up to 90 per cent accurate, offers a way to communicate for paralysed patients who cannot speak and could eventually lead to being able to read anyone thoughts.

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5-Minute Scan Reveals Brain Maturity

From Live Science:

A five-minute brain scan can reveal the maturity of a child's brain, according to a new study. The results could be used to track abnormal brain development and catch brain disorders like autism early.

The study, published online this week in the journal Science, uses a specialized method of mathematically sifting through magnetic resonance imaging (MRI) data to form a picture not just of the brain's structure, but the way its various regions work together.

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The Brain Speaks: Scientists Decode Words From Brain Signals

This photo shows two kinds of electrodes sitting atop a severely epileptic patient's brain after part of his skull was removed temporarily. The larger, numbered, button-like electrodes are ECoGs used by surgeons to locate and then remove brain areas responsible for severe epileptic seizures. While the patient had to undergo that procedure, he volunteered to let researchers place two small grids -- each with 16 tiny "microECoG" electrodes -- over two brain areas responsible for speech. These grids are at the end of the green and orange wire bundles, and the grids are represented by two sets of 16 white dots since the actual grids cannot be seen easily in the photo. University of Utah scientists used the microelectrodes to translate speech-related brain signals into actual words -- a step toward future machines to allow severely paralyzed people to speak. (Credit: University of Utah Department of Neurosurgery)

From Science Daily:

ScienceDaily (Sep. 6, 2010) — In an early step toward letting severely paralyzed people speak with their thoughts, University of Utah researchers translated brain signals into words using two grids of 16 microelectrodes implanted beneath the skull but atop the brain.

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Brain-Like Computing On An Organic Molecular Layer

Magnetic resonance images of human brain during different functions appear on top. Similar evolving patterns have been generated on the molecular monolayer one after another (bottom). A snapshot of the evolving pattern for a particular brain function is captured using Scanning Tunneling Microscope at 0.68 V tip bias (scale bar is 6 nm). The input pattern to mimic particular brain function is distinct, and the dynamics of pattern evolution is also typical for a particular brain operation. (Credit: Anirban Bandyopadhyay)

From Science Daily:

ScienceDaily (Apr. 26, 2010) — Information processing circuits in digital computers are static. In our brains, information processing circuits -- neurons -- evolve continuously to solve complex problems. Now, an international research team from Japan and Michigan Technological University has created a similar process of circuit evolution in an organic molecular layer that can solve complex problems. This is the first time a brain-like "evolutionary circuit" has been realized.

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Exercise Is Good For The Brain

From Live Science:

Working out on a treadmill isn't just good for the body, it's good for the brain, according to a new study, the latest to weigh in on the cognitive benefits of exercise.

Regular exercise speeds learning and improves blood flow to the brain in monkeys, the study found. The researchers suspect the same would hold true for humans.

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'Brain Training' Games Do Not Improve Mental Skills, Study Says

The results contradicted some of the claims of the brain-training industry.

From The Independent:

Brain training games do not work, according to a study into claims that it is possible to "exercise" the brain with computer tests.

A mass experiment involving nearly 11,500 members of the public failed to find any improvement in mental performance after people regularly used brain-training games on their computers for a period of six weeks.

Scientists said that the results contradicted some of the claims of the brain-training industry, which regularly promotes its computer games as a method of improving a person's mental skills through "exercising".

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Study: Bomb's Shock Waves May Electrify the Brain

A computer simulation showed how a shock wave from bomb blasts can make skulls generate electric fields. Credit: Karen K. Y. Lee.

From Live Science:

The blast waves from explosions could jolt the skull into generating electricity, potentially damaging the brain, scientists now suggest.

Although the burns and shrapnel wounds that explosions can inflict are their most obvious hazards, perhaps the greatest danger comes from a blast's shock wave. These rapidly generate ripples in a person's innards, potentially causing traumatic brain injuries with deleterious effects ranging from a simple concussion to long-term impaired mental function.

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Study: Brain Exercises Don't Improve Cognition

Brain-training tasks improve performance in the trained tasks alone, rather than improving cognitive performance overall. artpartner-images / Photographer's Choice RF / Getty Images

From Time Magazine:

You've probably heard it before: the brain is a muscle that can be strengthened. It's an assumption that has spawned a multimillion-dollar computer game industry of electronic brain-teasers and memory games. But in the largest study of such brain games to date, a team of British researchers has found that healthy adults who undertake computer-based "brain-training" do not improve their mental fitness in any significant way.

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Maxed Out: How Long Can We Concentrate For?

Surgeons have to concentrate for hours on end (Image: OJO Images / Rex Features)

From New Scientist:

It's a challenge that most of us have faced when up against an essay deadline, a late-night crisis in the office or perhaps a long car drive. Just how long can we push ourselves mentally before our brain needs a break?

For people in jobs where concentration is critical, like truck drivers, power-plant operators or airline pilots, a 12-hour shift is the limit for most. But pity doctors: complex surgery can go on for hours longer than that, although the lengthiest operations tend to be shared by more than one team.

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Why We Can't Do 3 Things At Once

When humans pursue two goals A and B concurrently, the two frontal lobes divide for representing the two goals and related actions simultaneously. The anterior most part of the frontal lobes enables to switch back and forth between the two goals, i.e. executing one goal while maintaining the other one on hold. This inter-hemispheric division of labor explains why humans appear unable to accurately carry out more than two tasks at one time. Credit: Etienne Koechlin, INSERM-ENS, Paris, France, 2010.

From Live Science:

For those who find it tough to juggle more than a couple things at once, don't despair. The brain is set up to manage two tasks, but not more, a new study suggests.

That's because, when faced with two tasks, a part of the brain known as the medial prefrontal cortex (MFC) divides so that half of the region focuses on one task and the other half on the other task. This division of labor allows a person to keep track of two tasks pretty readily, but if you throw in a third, things get a bit muddled.

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