Study links attention problems to early TV viewing
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Watching television more than two hours a day early in life can lead to attention problems later in adolescence, according to a study released on Tuesday.
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FRIDAY, Sept. 14 (HealthDay News) -- A new study could be great news for children with &quot;lazy eye.&quot;
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Telling people off activates a part of the brain linked to enjoyment and satisfaction, researchers report in Science magazine.
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Newborn infants display an innate preference for looking at attractive faces rather than their opposite, researchers say.
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Researchers have found a 'bottleneck' in the brain that appears to explain why we struggle to do two things at once.
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Diabetic children who spent the most time glued to the TV had a tougher time controlling their blood sugar, according to a Norwegian study that illustrates yet another downside of too much television.
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(InfoWorld) - Playing high-action video games for a few hours each day can improve your vision, according to researchers in the U.S. But an eye expert in the U.K. called their findings into question. The researchers from the University of Rochester in New York found that people who play video games for a few hours a day over the course of a month can improve certain aspects of their vision by about 20 percent. Playing the games changes the pathways in the brain responsible for visual processing, as the brain adapts to the additional pressure that playing such games puts on the visual system, they said. The researchers found a group of students who played little or no video games -- which was a challenge in itself -- and gave them a test that measured how well they could discern the orientation of a letter "T" within a crowd of other, distracting symbols. They then divided the students into two groups. One group was told to play the shoot-em-up game "Unreal Tournament" for an hour each day for a month, while a control group played "Tetris," a less visually complex game. After about a month, the students playing the action game could determine the orientation of the "T" much more easily than before, while the Tetris players showed no improvement, the researchers said. The T test measures visual acuity, or the clarity of a person's vision, according to the researchers, who are Daphne Bavelier, a professor of brain and cognitive sciences, and graduate student Shawn Green. That means playing video games should improve your ability to identify letters on a standard eye-test, they said. An optometry expert in the U.K. disagreed, however. The American researchers are confusing visual acuity with visual search, which is what the T test really measures, according to Maggie Woodhouse, a senior lecturer in the School of Optometry and Vision Sciences at Cardiff University. "The test they're using is not for visual acuity," she said after being told of the research. "They've trained their students to make rapid eye movements and to scan large areas to find objects of interest. ... That is visual search." There may indeed be a benefit from playing high-action video games, she said, but it will be in the ability to locate objects in a large or crowded area. That means it could help you pick out a friend's face at a football game, or play a fast-moving sport like ice hockey. The improvement may not last for very long, however, and Woodhouse seemed to consider the overall impact of video games a negative one. Playing for too long can cause eye strain, she said. She also said playing video games "gives you brain damage," although that seemed to be her subjective view rather than a scientific one. The researchers at Rochester University could not immediately be reached for comment. They said the results of their test suggest that people with visual defects could improve their visual acuity with special software that mimics the need to identify objects quickly in an action game. The research is due to appear in next week's Psychological Science journal.
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NEW YORK  - Older adults with mild  cognitive impairment may have problems retaining a mental  picture of objects they've just seen -- a subtle memory problem  that could serve as an early indicator of Alzheimer's disease  risk, researchers reported Monday.
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Focusing your attention on an object can actually impair rather than aid your perception of it, researchers find.
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Nearly half of people who regularly watch online video spend less time watching TV, a survey suggests.
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In new experiments for NBC, people are observed as they watch commercials in fast-forward mode.
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You&#39;re less likely to remember important tasks when you&#39;re stressed out, Yale Medical School researchers confirm. While this may come as little surprise to busy moms, business executives and college students, the scientists now have an explanation.
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By Stephen Ohlemacher  Americans spend more time watching television, listening to the radio, surfing the Internet and reading newspapers than anything else except breathing.
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People eat more when they are glued to the television, and the more entertaining the programme, the more they eat, according to research presented on Saturday.
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A team of psychologists and economists is reporting today what many Americans know but do not always admit, especially to social scientists: that watching television by oneself is a very
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By Fiona MacRae AS any truly dedicated couch potato will tell you, it can be tiring pressing the buttons on the remote control. But even that exertion might soon be avoided with the arrival of the thought-activated television.
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If you're tired of watching out-of-focus YouTube videos on your computer screen, now you'll be able to watch out-of-focus YouTube videos on your TV.