Saturday , May 8 2021

Is the display in front of the screen devastating children's brain?




Trust: Dustin Franz / The New York Times

The generation then parents were concerned about the effects of television. before that was a radio. Now the concern is "
time in front of actors, "a general term that talks about how much children, especially young people and young people, interact with televisions, computers, smart phones, digital tablets and video games.
interaction with actors dramatically increases during adolescence and because brain development is accelerating at that age as nerve networks are defined and combined during adulthood.

On Sunday afternoon, CBS's "60-minute" broadcast showed the first results
ABCD (Cognitive Development of Young Brain), a $ 300 million project funded by National Institutes of Health (NIH). The purpose of the analysis is to reveal how brain development is influenced by several factors, including substance use, bruising and time in front of the samples. As part of the newspaper's announcement of "60 minutes" of periodicals, it was reported that a lot of time spent using them was associated with lower grade aptitude tests in addition to "cortical thinning" – a natural process – in some children. However, the information is preliminary and it is not clear whether the effects are lasting or even significant.

Dependency of the screen changes the brain?

Yes, but the same thing happens to other activities that children are engaged in: sleep, homework, football, discussion, raising poverty, reading and using an electronic cigarette in the backyard. The youth's brain is constantly changing or "engaging" in response to daily activities, and adaptation continues only in the first half of the 20-year-olds.

What scientists want to know is the time adjacent to the screen to some extent cause some kind of measured differences in the structure or brain function of the young and if these are significant. Are they paying attention to the deficit, mood disorder or delay in reading or the ability to solve problems?

Have these differences been found?

Not convincingly. Over a hundred reports and scientific analysis have explored the relationship between screen usage and youth wellbeing, finding feelings or behaviors, and attitudinal changes related to, for example, the body image. In 2014, researchers from Belfast's Queen's University reviewed 43 best-targeted research. They found that social networks give people the opportunity to grow their social contact circle in a way that can be positive and negative, for example by exposing young people to aggressive content. The author's review found that "there is not enough in-depth cause research on the impact of social networks on the mental health of young people". In summary: the results have been varied and sometimes contradictory.

Psychologists have also investigated whether violent video games are playing aggressive behavior. They have completed over 200 such studies; some researchers found links, others did not. The challenge of looking at this and other perspectives in front of the screen is to identify the cause of causality: are many violent video games kids becoming more aggressive or are they interested in such content because they were more aggressive from the start?

Although scientists find a solid testimony of one measurable effect – for example, if the daily display of three hours is associated with an increasing risk of ADHD diagnosis – such a manifest link may not necessarily refer to it and be measurable in the brain structure.

Individual variation is a rule of brain development. The speed of the specific regions of the brain, such as the prefrontal cortex, by which these regions modify and reinforce their networks, and the variations in these parameters for individual interpretation of the results is very difficult. To overcome such obstacles, scientists need huge amounts of research topics and much better understanding of the brain.

Is not this the purpose of NIH's research?

Yes, the ongoing ABCD study is waiting for follow-up in 11,800 children through adolescence and annually by MRI scans whether brain changes are related to behavior or health. The study began in 2013, recruits 21 academic research centers and initially focused on the effects of drug and alcohol consumption on the youth brain. Since then, the project has expanded and now also includes other items such as the effects of brain damage, the front of the screen, genetics and a series of "different environmental factors".


Confidence: Shutterstock

The recently published article, to which "60 minutes" provided coverage, gave us an early look at the expected results. The research team at the University of California, San Diego campus, analyzes more than 4,500 puberty brain studies and correlates them with the time the kids spend with the actors. questionnaires) and their results in languages ​​and thinking. Results varied. Some children, who spend a lot of time in front of the actors, showed the thinning of the cortex in younger age groups than expected; but thinning is part of the natural maturation of the brain, and scientists do not know what this difference means. Some kids who spend a lot of time on samples underneath the curve in aptitude tests, while others performed well.

However, the accuracy of the time in front of the screen, which they themselves report, is difficult to check. In addition, the relationship between small brain differences and human behavioral relationships is in fact still unclear. As a result, researchers practically told each other of the uncertain relationship and made statistical changes. It is very difficult to get clear conclusions, and this situation is complicated because brain capture is only a temporary hijacking: within one year some of the observed relationships could be the opposite.

The authors also acknowledge this. "Diversity of results is an important public health message: interaction with actors is not only harmful to brain or brain related activities," they decided.

In other words, measured effects may be good, or more likely, may not be significant until other studies show otherwise.

But surely the addiction of the actors somehow is bad for the brain?

It's probably bad and good for the brain, according to the individual and his TV habits. Many people who are socially isolated, using irregularities, personal excentrisms, or developmental disadvantages such as Asperger syndrome, create social networks through screenings that they did not find personally.

The distinction between negative and positive consequences for the physical development of the brain is very difficult, taking into account many factors that are potentially at risk: the use of marijuana, alcohol, electronic cigarettes, genetic differences, home or school, and all mental storm of adolescence.

Most parents may already be aware of the biggest disadvantage of time in front of actors: to what extent can they overcome other childhood experiences, including sleeping, climbing fences, designing complex tricks, and getting into trouble. In fact, many parents – perhaps the majority – watched several hours of TV a day when they were young. Their experience may be more similar than they think to their children.


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