Group items tagged

What's really going on inside your head when you make a decision, make a mistake, or have a few drinks? In this segment, Ira and guests talk about new research involving the field of functional magnetic resonance imaging, or fMRI. The technique allows researchers to monitor the blood flow through parts of the brain as it responds to stimuli, allowing researchers to monitor which parts of the brain are active and which are resting. Though the technique is being eagerly explored in a variety of fields, fMRI has received criticism from some brain experts as being the modern-day equivalent of phrenology. We'll hear about the technique, and what it can tell researchers about the inner workings of the human brain.

The American research, which looked at brain scans of more than 1800 people, comes after Australia's National Health and Medical Research Council released draft guidelines warning that more than two drinks a day posed a health risk.

Their MRI scans revealed brain volume of moderate drinkers was almost 1% smaller than teetotallers while those who had 14 or more drinks a week suffered 1.2% shrinkage.

A three-year research project, headed by Mimi Ito, involving 28 researchers and 800 subjects, and sponsored by the MacArthur Foundation, finds that the stereotypical idea of the Internet as a soul-devouring, anti-social wasteland for our kids is just plain wrong. If you suspected otherwise, now you know you were right.

The researchers identified two distinctive categories of teen engagement with digital media: friendship-driven and interest-driven. While friendship-driven participation centered on “hanging out” with existing friends, interest-driven participation involved accessing online information and communities that may not be present in the local peer group.

Most IQ tests attempt to measure two types of intelligence--crystallized and fluid intelligence. Crystallized intelligence draws on existing skills, knowledge and experiences to solve problems by accessing information from long-term memory. Fluid intelligence, on the other hand, draws on the ability to understand relationships between various concepts, independent of any previous knowledge or skills, to solve new problems. The research shows that this part of intelligence can be improved through memory training.

Since inventing much of the technology behind personal computing in the late 1960s, Alan Kay has dedicated his work to developing better learning environments for children. Now a senior researcher at HP and the president of Viewpoints Research Institute, Kay is launching Squeak, a multimedia authoring tool that allows children to construct dynamic simulations of real-world phenomena. We spoke with him about the unfulfilled promise of technology in schools—and about what computers have in common with pianos.

have shown that both calorie restriction and intermittent fasting along with vitamin and mineral intake, increase resistance to disease, extend lifespan, and stimulate production of neurons from stem cells.

Physical exercise may also have beneficial effects on neuron regeneration by stimulating regeneration of brain and muscle cells via activation of stress proteins and the production of growth factors. But again, additional research suggests that not all exercise is equal. Interestingly, some researchers found that exercise considered drudgery was not beneficial in neuronal regeneration, but physical activity that was engaged in purely for fun, even if equal time was spent and equal calories were burned, resulted in neuronal regeneration.

"In medicine, we have an excellent system in place to go from basic research to clinical practice, while in neuroscience we have the basic understanding of how the brain learns but still need to figure out how to translate this into the classroom," says Manfred Spitzer of the University of Ulm in Germany, one of the conference organisers. With brain imaging and, increasingly, genetic studies now complementing psychology research, a host of new findings could inform teachers about the conditions in which our brains can be primed to learn best.

Resilience is the ability to successfully manage life and adapt to stressful events. Resilience is developed in childhood, when there are loving people available to help during difficult times, but if a child feels alone, resilience is not developed just because challenging things are happening.

Due to recent brain research on neuroplasticity, we know that brains are growing and creating neural pathways during childhood and through adolescence. What's new in this book is the focus on a repetitive practice that strengthens these neural pathways and teaches young people concrete skills to calm themselves and focus their attention.

The interesting part of the connection between stress and learning is that the prefrontal cortex of the brain is the area for paying attention, calming, and focusing as well as the area for short- and long-term memory.

A little brain boost is something we could all use now and then. A new option may be on the horizon. Researchers at the National Institute for Neurological Disorders and Stroke, in Bethesda, MD, are studying how applying gentle electrical current to the scalp can improve learning.

For middle-aged and older adults, searching the Internet could be a boost to the brain, a new study suggests.

People who had written about a situation in which they were not in control were more likely to draw non-existent connections between the coincidences, the researchers found.