Brain

We've all heard that eating fish is good for our brains and memory. But what is it about DHA, an omega-3 fatty acid found in fish, that makes our memory sharper?

Medical researchers at the University of Alberta discovered a possible explanation and just published their findings in the peer-reviewed journal Applied Physiology, Nutrition, and Metabolism.

Johns Hopkins researchers, working with an international consortium, say they have generated stem cells from skin cells from a person with a severe, early-onset form of Huntington's disease (HD), and turned them into neurons that degenerate just like those affected by the fatal inherited disorder.

By creating "HD in a dish," the researchers say they have taken a major step forward in efforts to better understand what disables and kills the cells in people with HD, and to test the effects of potential drug therapies on cells that are otherwise locked deep in the brain.

The visual information from eyes is sent into the brain unconsciously even if you are not aware. One of examples of unconscious seeing is a phenomenon of "blindsight" [Subjects have no awareness, but their brains can see ] in subjects with visual impairment, caused by the damage of a part of the brain called the visual cortex. Although it is already reported that the patients with damage in the visual cortex, who were not aware of seeing, can walk and avoid obstacles, it was not proved whether this was really blindsight.

Irvine, Calif., June 28, 2012 — An international consortium of Huntington's disease experts, including several from the Sue & Bill Gross Stem Cell Research Center at UC Irvine, has generated a human model of the deadly inherited disorder directly from the skin cells of affected patients.

The re-created neurons, which live in a petri dish, will help researchers better understand what disables and kills brain cells in people with HD and let them gauge the effects of potential drug therapies on cells that are otherwise locked deep in the brain.

Montreal, June 28, 2012 – Poetry has been following the rules for centuries. From the strict structure of the haiku to the rhythmic rhyme of the ballad, verse can be daunting to both professional poets and amateur auteurs. But poems are also media for the masses and one Concordia researcher is using mass media to put them back in the hands of the people.

(Boston) -- In a genome-wide association (GWA) study, researchers from Boston University Schools of Medicine (BUSM) and Public Health (BUSPH) have identified several genes which influence degeneration of the hippocampus, the part of the brain most associated with Alzheimer disease (AD). The study, which currently appears online as a Rapid Communication in the Annals of Neurology, demonstrates the efficacy of endophenotypes for broadening the understanding of the genetic basis of and pathways leading to AD.

In a process akin to belling an infinitesimal cat, scientists have managed to tag a protein that regulates the neurotransmitter serotonin with tiny fluorescent beads, allowing them to track the movements of single molecules for the first time.

The capability, which took nearly a decade to achieve, makes it possible to study the dynamics of serotonin regulation at a new level of detail, which is important because of the key role that serotonin plays in the regulation of mood, appetite and sleep.

Employment policy is also health policy according to a University of British Columbia study that found that workers experienced higher mortality rates if they didn't have access to social protections like employment insurance and unemployment benefits.

Researchers with the Human Early Learning Partnership and the School of Population and Public Health at UBC found that low and medium-skilled workers in the United States are at a greater risk of death if they lose their job than their German counterparts, who have access to more robust employment protections and insurance.

When it came to eating, an upright, 2-million-year-old African hominid had a diet unlike virtually all other known human ancestors, says a study led by the Max Planck Institute of Evolutionary Anthropology in Leipzig, Germany and involving the University of Colorado Boulder.

Gay parents face many of the same challenges as straight parents when it comes to sex and intimacy after having children, according to a new study of gay fathers published in the journal Couple and Family Psychology. The findings suggest that gay male couples who are raising children may experience lifestyle changes that could reduce their HIV risk.

A new study shows significant differences in brain development in high-risk infants who develop autism starting as early as age 6 months. The findings published in the American Journal of Psychiatry reveal that this abnormal brain development may be detected before the appearance of autism symptoms in an infant's first year of life. Autism is typically diagnosed around the age of 2 or 3.

One of the basic elements of cognition―the ability to estimate quantities―grows more precise across the first 30 years or more of a person's life, according to researchers supported by the National Institutes of Health.

This intuitive grasp of numbers, also called an approximate number sense, or ANS, is tied to concrete math skills at every stage of life, the researchers found.

Scientists who search for new pesticides for use in humanity's battle of the bugs and other threats to the food supply have been learning lessons from Mother Nature, according to a new analysis. It concludes that more than two out of every three new pesticide active ingredients approved in recent years had roots in natural substances produced in plants or animals. The article appears in ACS' Journal of Natural Products.

(Edmonton) Getting kids to pass up junk food in favour of healthier fruits and veggies has led to many a mealtime meltdown for parents everywhere. Now, researchers from the University of Alberta offer a simple solution: give them an apron.

A provincewide survey of Grade 5 students in Alberta suggests the best way to get your child to eat healthier foods—and actually enjoy them—is to have them help with meal preparation.

PHILADELPHIA -- Researchers have long been interested in discovering the ways that human brains represent thoughts through a complex interplay of elec-trical signals. Recent improvements in brain recording and statistical methods have given researchers unprecedented insight into the physical processes under-lying thoughts. For example, researchers have begun to show that it is possible to use brain recordings to reconstruct aspects of an image or movie clip someone is viewing, a sound someone is hearing or even the text someone is reading.