November 8, 2010
If you want to eat to maximize your mood and brain power, here's what the experts recommend: ? Breakfast: Studies have provided good evidence that a healthy breakfast leads to better cognitive performance, especially in children. ? Enough calories: Few things make people grumpier than being calorie deprived. If you're hungry, anything with calories will help. ? Regular meals: Keeping your blood sugar even by eating regularly ? about every four hours ? will help keep your mood level all day. Conversely, skipping meals and eating erratically will lead to highs and lows.
September 10, 2007 |
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. Previous psychological studies have found that conservatives tend to be more structured and persistent in their judgments whereas liberals are more open to new experiences.
July 20, 2012
Re "Head case puzzle," Opinion, July 15 Robert M. Sapolsky highlights the paradox between biological causes of abnormal behavior and the issue of assessing moral and legal responsibility. After 40-plus years in psychiatry, I have found that the most useful pathway is to accept the paradox, following John Stuart Mill's advice: While ultimately our will is not free, for the sake of an orderly society, it is necessary to act as if it were. Pragmatically, I interpret this to mean that when the biological causation is extraordinary (major brain damage or an acute cerebral infection)
November 28, 2012 |
At the time of his death of an aortic aneurysm at age 76, Albert Einstein's brain was no bigger, and weighed no more, than the brain of an average older male. But beneath that unique organ's external folds and fissures, our universe was re-conceived. So not surprisingly, when photographs of Einstein's postmortem brain unexpectedly came to light recently, scientists were keen to find evidence of the genius that lay within. The result is a remarkably detailed look at the surface of Einstein's brain, published recently in the journal Brain.
October 16, 2013 |
Scientists have discovered the fossilized brain of an animal that lived 520 million years ago. It is the oldest mostly intact nervous system to have ever been found. The incredible ancient brain and nervous system, described in the journal Nature, belongs to an Alacomenaeus , a member of the mega-claw family. These animals earned the name "mega-claw" ( megacheiran ), because they have two large scissor-like appendages that protrude from the top of their heads. Megacheirans lived in the early Cambrian-era ocean, swimming and scuttling around with nearly one dozen little legs, or swimmerettes.
July 22, 2010 |
Irritable bowel syndrome has been a tough disorder to understand. Studies have failed to show any structural problems in the gut that would account for the symptoms of pain, bloating, diarrhea and constipation. However, the disorder is real, affecting as many as 15% of Americans. A new study has found a possible connection between IBS and the brain. Researchers at McGill University and UCLA used MRI scans to reveal changes in the brains of women with the disorder. The researchers took MRI scans of 55 IBS patients and 48 healthy women for comparison.
August 20, 2013 |
If you can't quite get that nine-note treble opening to " Fur Elise," just sleep on it. The brain will rehearse, reorganize and nail the sequential motor tasks that help you play piano or type on a keyboard. How that consolidation of memory happens has remained largely a mystery, despite telling evidence that the brain's motor cortex appears to be quite busy during sleep. Now, a team led by Brown University neuroscientists believes it has found the source of the sleeping piano lesson, and it's not where many expected it to be. Neuroscience has been fixated since its founding on why the brain “needs” that peculiar mix of dormancy and random activity known as sleep.
February 16, 2013 |
Suppose you're under a lot of pressure. Does it feel like a huge flood is swirling around in your brain, tossing your thoughts every which way? Well, Ashley Merryman and Po Bronson say, maybe that's because your brain really is flooded - with dopamine. Dopamine is a neurotransmitter that the brain needs to run at full capacity, but as with so many good things, it's possible to have too much of it. So, as your brain keeps producing fresh dopamine, it has to keep getting rid of the old. In the prefrontal cortex, special enzymes called COMT - for catechol-O-methyltransferase - carry out these mop-up operations.
November 12, 2013 |
Let's get a couple of things straight first about estrogen, the so-called "female hormone. " First, it influences a lot more than just what's going on "down there": it's produced by the brain, of course, and brain scientists are increasingly studying estrogen as a "neuromodulator," a chemical with powerful effects on the brain as well as the reproductive system. Second, it's not just females who have estrogen, need it and suffer with its loss. Males do too, as a recent study involving the humble songbird makes clear.