April 1, 2009

Living With Traumatic Brain Injury

People with traumatic brain injuries may experience physical, cognitive or personality changes that affect their work and relationships. In this program from the University of Washington, you will hear stories of people who are rebuilding their lives and readjusting to family, careers and everyday life after a brain injury:

Coping with Brain Injury: Caregiving Strategies

It's certainly not easy to be the caregiver for someone with a serious brain injury. Depression, sense of loss and frustration are likely consequences. This informative interview explores strategies to avoid isolation and anger, and points the way toward resources to make the job easier.

February 1, 2009

Coping with Brain Injury: Robots and Rehabilitation

There are no silver bullets after brain injury, but new robotic technologies are effective in helping stroke victims regain function in their arms and legs. This cutting edge technology doesn't just assist by moving limbs; it fosters learning that actually rewires the brain. Robots are emerging as a promising new rehabilitation tool.

November 7, 2008

Brain Fitness: Sight & Sound

Join host Peter Coyote in "Brain Fitness 2: Sight & Sound," the follow-up to "The Brain Fitness Program," as he explores the brain's ability to change and grow, even as we age, helping us maintain and improve our vision and hearing.



"Brain Fitness 2: Sight & Sound" is a special in-depth look at the advances in neuroplasticity and how it relates to healthy aging, with a particular focus on making the most of information filtered through our eyes and ears.

October 16, 2008

A User's Guide to Lifelong Brain Health

By Dr. Simon Evans

"To keep the body in good health is a duty...otherwise we shall not be able to keep our mind strong and clear." - Buddha, circa 500 B.C.
As the Brain Fitness industry continues to gain momentum, and people explore all the incredible brain-training tools being developed, we hope that enthusiasts don't take their eye off the importance of the physical health of the brain and all the systems it communicates with. The brain is unique in that it houses our cognitive and emotional capacities in the form of the mind. It is a 'cognitive' organ that hungers for stimulation from new experiences and challenges. Many brain fitness programs strive to satisfy this need.

Yet the brain is also a physical organ that plays by many of the same rules as the heart, lungs, liver and kidneys. To stay healthy and perform optimally it requires quality nutrition, physical activity and optimal sleep. The brain, especially, relies on a healthy vascular system to efficiently deliver oxygen and key nutrients and remove waste. In fact, the brain uses approximately 20% of the oxygen we breathe to satisfy its high-energy demands. Given that the brain only weighs about 2% of the body, we can consider it an energy hog and we must cater to its needs very carefully.

Nutrients play key roles in brain function. Several have shown efficacy in clinical trials treating cases of mood disorders, cognitive decline and of course benefiting the physical health of the brain. Nutrients are both the raw materials employed in creating new neural connections and important components in regulating the activity of genes involved in these processes. Specific nutrients involved in mitochondrial efficiency, the energy factories of brain and body cells, are particularly important for many aspects of brain function. Other nutrients are involved in the inner workings of neuronal membranes, responsible for ensuring that electrochemical signals, which make up our thoughts, transmit efficiently and reliably.

Finally, antioxidants, important throughout the body, are especially important in the brain due to its high energy production rates and concurrent high capacity for free radical leakage. Keeping this in mind, it is readily apparent that nutrition provides the building blocks for our brain's structure and function, and therefore cannot be ignored.

Exercise is a clearly established component for promoting brain health as well. No longer can we think that the brain is completely separate from the brawn. Human studies have shown the value of exercise in controlling stress and maintaining positive mood states; in improving cognitive function, including performance on memory and executive tasks; and in improving the brain's two-way communication streams with the rest of the body. Some of these benefits are likely due to the positive effects of exercise on neurovascular health, which parallel cardiovascular health. Other benefits seem due to increased grey matter in 'front office' functions of the cortex; and neuronal birth, or neurogenesis, in the hippocampus, a brain region that controls aspects of memory and mood regulation.

Whatever the mechanism, giving your body a workout will produce substantial benefits in terms of brain health. Remember, a body in motion tends to stay in motion, and your brain and body will be together your whole life.

Read More Here: http://www.sharpbrains.com/

September 25, 2008

Fluid Intelligence and the Prefrontal Cortex

The Positive Manifold: Reactive Control in Fluid Intelligence?
by Chris Chatham

What neural mechanisms underlie "fluid intelligence," the ability to reason and solve novel problems? This is the question addressed in a recent paper by Gray et al. in Nature Neuroscience. The authors begin by suggesting that fluid intelligence is related to both attentional control and active maintenance of information in the face of ongoing processing (i.e., working memory).

Each of these concepts, in turn, has been associated with the functioning of the lateral prefrontal cortex - a region that has been massively expanded in humans compared to even our closest evolutionary relatives.

Read More: Here

September 22, 2008

On Neuroplasticity - Audio

The dogma used to be that the adult brain was a rigid, unchangeable organ, but that pessimistic perspective is now being radically revised. Psychiatrist Dr Norman Doidge journeyed into the labs and lives of the 'neuroplasticians' -- once scientific mavericks, they're challenging the old neurological nihilism. Professor Jeffrey Schwartz is one. They both join Natasha Mitchell in discussion to reveal how the human brain has underestimated itself!


All In The Mind is Radio National's weekly foray into the mental universe, the mind, brain and behaviour - everything from addiction to artificial intelligence.

September 10, 2008

Yale Scientists May Have Found Brain's Center For Self-Control

Intelligence offers some protection against succumbing to immediate gratification, but psychologists have been unsure why. Yale University researchers report that they may have found the first clue to the mystery in an area of the brain that governs abstract problem solving and goal management.

"How do you juggle what you desperately want to do right now versus what you know to be best for yourself long term? Its not easy for anyone," said Jeremy Gray, assistant professor of psychology and co-author of the study. "We found that a part of prefrontal cortex that helps integrate goals and values appears to contribute to both self-control and to performance on tests of abstract reasoning and problem solving, helping to explain why self-control and intelligence are related."

Read More: Here

June 23, 2008

Jill Bolte Taylor's Stroke of Insight

One morning in 1996, a blood vessel in Jill Bolte Taylor's brain exploded. Within moments, her left lobe--the source of ego, analysis, judgement and context--began to fail her. And much to her shock, the Harvard-trained brain scientist felt great. She'd been given a ringside seat to her own stroke, and a host of powerful insights as a result.

Here she is talking about her work and life at the TED 2008 Conference:

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March 2, 2008

An Intro to Brain Injury

The Anatomy of a Head Injury

by Eric A. Roy, Ph.D., C.Psych.
Director of the Centre for Habilitation Education and Research


Injuries involving some type of blow to the head are among the most common in our society. Some 700,000 people in North America suffer traumatic head injuries each year, and between 70,000 and 90,000 are left permanently disabled. Head injuries can range from relatively minor damage to the scalp and face such as lacerations, abrasions and bruising to more serious consequences involving damage to the brain. While traumatic brain injury occurs much less frequently, it is important to know how it is identified and what to do for the person.

Loss of consciousness, even for a very brief period, is one of the clearest indications that the brain may have been affected by a blow to the head. A confusional state involving uncertainty about time, date, and location and/or a period of memory loss for the events surrounding the head injury are also indicators of trauma to the brain. Any of these symptoms following a blow to the head should be taken seriously.

With the most severe symptoms, loss of consciousness for more than a few minutes, the person should receive immediate medical attention. With less severe symptoms the person should be watched for a period of several hours after the head trauma. The person's state of consciousness, orientation to time and place and immediate memory function (e.g., remembering a series of four numbers) should be evaluated periodically during this time. Any evidence of deterioration may be a sign of the delayed effects of brain injury due to swelling or internal bleeding and require that the person receive medical attention as soon as possible. Some appreciation for how and why these symptoms arise will provide insight into why even a seemingly mild blow to the head may have very serious and potentially life-threatening consequences.

The effects of a blow to the head on brain function arise from the structural characteristics of the skull and the brain and the direction and size of the forces acting on the head. The brain, a rather soft tissue with the consistency somewhere between egg white and jello, is covered by three membrane layers. The outer-most layer, called the dura mater, is connected to the inside of the skull at various suture points which serve to suspend the brain within the skull. The brain sits atop the brain stem, an extension of the spinal cord which passes out the base of the skull through a hole called the foramen magnum. Brain injuries arise from three characteristics of this brain-skull anatomy: the rigidity and internal contours of the skull, the incompressibility of brain tissue and the susceptibility of the brain to shearing forces.

Read More: Here

November 18, 2007

Research Shows The Brain's Processing Speed Is Significantly Faster Than Real Time

Scientists at The University of Arizona have added another piece of the puzzle of how the brain processes memory.
http://www.medicalnewstoday.com/articles/89079.php

October 24, 2007

Ramachandran Talk



In this wide-ranging talk, Vilayanur Ramachandran explores how brain damage can reveal the connection between the internal structures of the brain and the corresponding functions of the mind. He talks about phantom limb pain, synesthesia (when people hear color or smell sounds), and the Capgras delusion, when brain-damaged people believe their closest friends and family have been replaced with imposters.

September 11, 2007

The Political Brain

Study finds left-wing brain, right-wing brain

By Denise Gellene -Los Angeles Times Staff Writer
September 10, 2007


Even in humdrum nonpolitical decisions, liberals and conservatives literally think differently, researchers show.

Exploring the neurobiology of politics, scientists have found that liberals tolerate ambiguity and conflict better than conservatives because of how their brains work.

In a simple experiment reported todayin the journal Nature Neuroscience, scientists at New York University and UCLA show that political orientation is related to differences in how the brain processes information.
READ MORE: HERE

August 27, 2007

The Brain: What is it Good For?

A Brief History of the Brain

-evolution
-anatomy
-etc

The Human Bodymind

August 22, 2007

About Us_The Brain Blog

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