Friday, June 17, 2016

How exercise helps to absorb new information – BBC

June – the traditional time of delivery of school and university exams. And if it’s time to end the exam, the student’s session is still in full swing. In addition to the traditional test preparation, enterprising students have resorted to other methods to get knowledge to linger in the memory: some try to stimulate brain activity medicines (about whether to do it, the science department has told ), someone the recourse to national signs, for example, puts the textbook under your pillow or put out at midnight in the window and shouted: “Free services, come!”, waving the record book.

Now, students can take advantage of another way to get the knowledge to gain a foothold in the memory – the study of this published in the latest issue of the journal Current Biology. The research team, led by Eelko van Dongen at the University of Nijmegen them. St. Radbod Utrecht (the Netherlands) found that

sports four hours after memorizing new information to help digest it better.

The study involved 72 people. They were shown 90 images, on which various objects were depicted. Subjects in 40 minutes should have to remember where it is located on each picture items. After that, people were divided into three groups: the first group of members immediately after storing images for 35 minutes were engaged on a stationary bike, and then for three hours watching a documentary about nature. The second group of first watched movies, and to sporting exercises proceeded to four hours after storing images. Members of the third group did not manage any movie to see or on a stationary bike ride – just after storing images, scientists released them home

After 48 hours, after the experience of all the people gathered again -. Now they had to show which part of the received information preserved in their memory (at this time the researchers examined the brain activity of subjects using magnetic resonance imaging).

The results showed that people who engage in sports immediately after mental exertion, and those who do not fit in exercise bike, remembered about the same number of images.

But those who biked four hours after storing the images showed significantly higher scores. <- place 8272169, / science ™ / 2016/05 / 31_a_8272169.shtml, nm2015 / v2 / article / incut, incut2_link ->

in addition, the work of the brain of subjects from different groups also differed when those who subjected his body exertion four hours after mental exertion, right determined object location on the picture, certain areas of the hippocampus have excited more than in other subjects.

So far, the scientists precisely can not explain the reasons for the beneficial effects of ” deferred “sports on the formation of long-term memory, but it is thought that this may be due to an increase in catecholamine concentrations in the human body after sport. Catecholamines – are active substances that act as “intermediaries” in the interactions between cells. These include, for example, neurotransmitters such as epinephrine, norepinephrine, or dopamine. The content of catecholamines in the blood increases during physical activity

The study’s authors believe that the increase in the concentration of these substances, and can contribute to the process of memory consolidation -. “Translating” short-term memories into long-term.

However, to consolidate the new information in the memory is possible not only by going to the gym four hours after training. Scientists have recently found : if a person repeats aloud newly learned information, it helps to immediately “send” data from long-term memory, and keep it there for a long time

In the course of the volunteers of the experiment. showed 26 short videos, each of which tells a little story, and was filled with details

. <-! place 8250233, / science ™ / 2016/05 / 20_a_8250233.shtml, nm2015 / v2 / article / incut, incut3_link ->

In 20 cases, after reviewing records participants experience was given 40 seconds to ensure that loud or silently repeat video content.

after two weeks, the participants experience We asked to retell the content viewed records as detailed as possible. It turned out that the people who spoke aloud the contents of the video after viewing could remember more details than those who do not tell the story. Analysis of the brain of participants experience confirmed:. Of talking about information process aloud makes work actively cortex posterior cingulate brain gyrus – an area that meets including for the formation of long-term memory

If you do not have time any sport, any loud pronunciation of the content of the textbook, you can go on one more way: go to bed. In the spring, scientists from the University of California published an article , which said: while you sleep in the cerebral cortex is slow oscillations of electrical activity, and in the hippocampus – a brain region responsible for the processes of learning and memory formation, – rapid fluctuations . This slow oscillations affect the fast, and they, in turn, have the opposite effect on the fluctuations in the cerebral cortex

As a result of the interaction. “Cortex – Hippocampus” short-term memories are converted into long-term, but in the reverse reaction ‘hippocampus – bark “is re-excitation of neurons and the” consolidation “of memories

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