The research, which included both elementary school-age and college-age participants, found that children who exceeded the two hours per day of screen time recommended by the American Academy of Pediatrics were 1.5 to 2 times more likely to be above average in attention problems.
"There isn't an exact number of hours when screen time contributes to attention problems, but the AAP recommendation of no more than two hours a day provides a good reference point," said Edward Swing, an Iowa State psychology doctoral candidate and lead researcher in the study. "Most children are way above that. In our sample, children's total average time with television and video games is 4.26 hours per day, which is actually low compared to the national average."
Collaborating with Swing on the research were ISU's Douglas Gentile, an associate professor of psychology and Craig Anderson, a Distinguished Professor of psychology; and David Walsh, a Minneapolis psychologist. Their study will be published in the August print issue of Pediatrics -- the journal of the American Academy of Pediatrics -- available online on Monday, July 5.
Previous research had associated television viewing with attention problems in children. The new study also found similar effects from the amount of time spent with video games.
"It is still not clear why screen media may increase attention problems, but many researchers speculate that it may be due to rapid-pacing, or the natural attention grabbing aspects that television and video games use," Swing said.
Gentile reports that the pace of television programming has been quickened by "the MTV effect."
"When MTV came on, it started showing music videos that had very quick edits -- cuts once every second or two," Gentile said. "Consequently, the pacing of other television and films sped up too, with much quicker edits."
He says that quicker pace may have some brain-changing effects when it comes to attention span.
"Brain science demonstrates that the brain becomes what the brain does," Gentile said. "If we train the brain to require constant stimulation and constant flickering lights, changes in sound and camera angle, or immediate feedback, such as video games can provide, then when the child lands in the classroom where the teacher doesn't have a million-dollar-per-episode budget, it may be hard to get children to sustain their attention."
The study showed that the effect was similar in magnitude between video games and TV viewing.TV, video games may contribute to ADHD
"ADHD is a medical condition, but it's a brain condition," Gentile said. "We know that the brain adapts and changes based on the environmental stimuli to which it is exposed repeatedly. Therefore, it is not unreasonable to believe that environmental stimuli can increase the risk for a medical condition like ADHD in the same way that environmental stimuli, like cigarettes, can increase the risk for cancer."
"Although we did not specifically study the medical condition of ADHD in these studies, we did focus on the kinds of attention problems that are experienced by students with ADHD," added Swing. "We were surprised, for example, that attention problems in the classroom would increase in just one year for those children with the highest screen time."
Swing points out that the associations between attention problems and TV and video game exposure are significant, but small.
"It is important to note that television or video game time cannot solely explain the development of attention problems," he said. "Clearly other factors are involved."
The researchers plan to continue studying the effects of screen time on attention. They also hope future research can identify what aspects of television or video games may be most relevant to attention problems.
Mike Ferlazzo | EurekAlert!
Rutgers-led innovation could spur faster, cheaper, nano-based manufacturing
14.02.2018 | Rutgers University
New study from the University of Halle: How climate change alters plant growth
12.01.2018 | Martin-Luther-Universität Halle-Wittenberg
Breakthrough provides a new concept of the design of molecular motors, sensors and electricity generators at nanoscale
Researchers from the Institute of Organic Chemistry and Biochemistry of the CAS (IOCB Prague), Institute of Physics of the CAS (IP CAS) and Palacký University...
For photographers and scientists, lenses are lifesavers. They reflect and refract light, making possible the imaging systems that drive discovery through the microscope and preserve history through cameras.
But today's glass-based lenses are bulky and resist miniaturization. Next-generation technologies, such as ultrathin cameras or tiny microscopes, require...
Scientists from the University of Zurich have succeeded for the first time in tracking individual stem cells and their neuronal progeny over months within the intact adult brain. This study sheds light on how new neurons are produced throughout life.
The generation of new nerve cells was once thought to taper off at the end of embryonic development. However, recent research has shown that the adult brain...
Theoretical physicists propose to use negative interference to control heat flow in quantum devices. Study published in Physical Review Letters
Quantum computer parts are sensitive and need to be cooled to very low temperatures. Their tiny size makes them particularly susceptible to a temperature...
Let’s say the armrest is broken in your vintage car. As things stand, you would need a lot of luck and persistence to find the right spare part. But in the world of Industrie 4.0 and production with batch sizes of one, you can simply scan the armrest and print it out. This is made possible by the first ever 3D scanner capable of working autonomously and in real time. The autonomous scanning system will be on display at the Hannover Messe Preview on February 6 and at the Hannover Messe proper from April 23 to 27, 2018 (Hall 6, Booth A30).
Part of the charm of vintage cars is that they stopped making them long ago, so it is special when you do see one out on the roads. If something breaks or...
15.02.2018 | Event News
13.02.2018 | Event News
12.02.2018 | Event News
16.02.2018 | Information Technology
16.02.2018 | Health and Medicine
16.02.2018 | Physics and Astronomy