A new study from Auburn University in Alabama suggests that when there’s a lot of information going into the brain, the brain is straining with the load, so the humans depend more on the right ear for processing and keeping the incoming information.
Forty-one adults aged between 19 and 28 participated in the study. They took part in a number of both separation and integration dichotic listening tests. With each subsequent test, the amount of information increased.
Having analyzed the received data, the scientists concluded that when there was no too much of information, the participant retained information fed into their both ears well, but when the amount of information increased, their ability to remember items heard by the right ear was greater than the items heard by the left ear. The average difference was 8% but some persons had the difference up to 40%.
A new study, published in the journal Pediatrics, says that breastfeeding has no influence on a child’s cognitive development.
During the research, a team of scientists from University College Dublin studied 8,000 Irish families and tested the children were breastfed and who were not at ages three and five. They found that those kids who were breastfed for at least 6 months are less hyperactive by age 3 than kids who were not breastfed, but this difference disappears by the age of 5 years.
Study author Lisa-Christine Girard, a researcher at University College Dublin, explains: “We weren’t able to find a direct causal link between breastfeeding and children’s cognitive outcomes.”
A new Finnish research found that eating eggs have only a slight effect on blood cholesterol levels. Moreover, this research claims that eating eggs may actually help boost your brain functions.
For their study, a team of researchers analysed the diets of 2,497 men aged from 42 to 60 who didn’t have the diagnosis of a memory disorder. Over a period of 22 years, 337 had gone onto developing a neurological condition.
Professor Jyrki Virtanen, an author of the study from the University of Eastern Finland says: “Neither cholesterol nor egg intake was associated with a higher risk of incident or Alzheimer’s disease. However, egg intake was associated with better performance on neuropsychological tests of the frontal lobe and executive functioning.”
More information about the study you can find here.
A new study confirms that aerobic exercise not only increases brain size (as previous research suggested), but also can improve cognition in senior patients with mild cognitive impairment (MCI).
For the study, the researchers examined 35 adults with MCI. The participants were divided in two groups: one group included 16 adults with average age 63, another group was a control group including 19 adults with average age 67.
The first group performed a range of aerobic activities such as treadmill, cycling, and elliptical training. They had training sessions 4 times a week during 6 months. The control group performed stretching exercises with the same schedule.
At the end of the 6-months period, the scientists found that those who performed aerobic exercising had improved more significantly compared to the stretching group.
The antioxidant properties of carotenoids, vegetable compounds found in some vegetables, are well known, and now an emerging research suggests that these compounds may influence cognition positively.
Carotenoids can be found in such vegetables as carrots, pumpkins, peppers, tomatoes, potatoes, oranges, kale, spinach, and peas.
For their study, the researchers included 43 adults aged between 65 and 86 years. They asked to learn and remember pairs of unrelated words while undergoing through functional MRI. The assessed the level of lutein and zeaxanthin (kinds of carotenoids) in the retina.
Scientists found that higher levels of lutein and zeaxanthin were associated with a lower signal in several areas of the brain. This indicated lower brain activity in individuals with higher levels of carotenoids, which meant they had not had to work as hard to complete the task.