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Javier E

Google Glass May Be Hands-Free, But Not Brain-Free - NYTimes.com - 0 views

www.nytimes.com/...s-free-but-not-brain-free.html

attention blindness perception glass

shared by Javier E on 25 May 13 - No Cached
  • The “eyes-free” goal addresses an obvious limitation of the human brain: we can’t look away from where we’re heading for more than a few seconds without losing our bearings. And time spent looking at a cellphone is time spent oblivious to the world, as shown in the viral videos of distracted phone users who stumble into shopping-mall fountains. Most people intuitively grasp the “two-second rule.”
  • Researchers at the Virginia Tech Transportation Institute outfitted cars and trucks with cameras and sensors to monitor real-world driving behavior. When drivers were communicating, they tended to look away for as much as 4.6 seconds during a 6-second period. In effect, people lose track of time when texting, leading them to look at their phones far longer than they know they should
  • Heads-up displays like Google Glass, and voice interfaces like Siri, seem like ideal solutions, letting you simultaneously interact with your smartphone while staying alert to your surroundings
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  • The problem is that looking is not the same as seeing, and people make wrong assumptions about what will grab their attention.
  • about 70 percent of Americans believe that “people will notice when something unexpected enters their field of view, even when they’re paying attention to something else.”
  • “inattentional blindness” shows that what we see depends not just on where we look but also on how we focus our attention.
  • Perception requires both your eyes and your mind, and if your mind is engaged, you can f
maxwellokolo

Brains of those with ADHD show smaller structures related to emotion - 3 views

www.cnn.com/...index.html

shared by maxwellokolo on 16 Feb 17 - No Cached
  • maxwellokolo on 16 Feb 17
     
    ADHD, a neurodevelopmental disorder, can cause inattention, hyperactivity and impulsivity. More than one in 20 people younger than 18 is affected by the disorder. Two-thirds of those affected have symptoms into adulthood. For the study, the researchers re-examined data collected by a variety of ADHD studies at 23 research sites around the world.
clairemann

If You Look at Your Phone While Walking, You're an Agent of Chaos - The New York Times - 0 views

www.nytimes.com/...distracted-walking-phone.html

psychology science research knowledge technology

shared by clairemann on 26 Mar 21 - No Cached
  • An experiment by Japanese researchers revealed how just a few distracted walkers really can throw off the movements of a whole crowd.
  • And so it might not come as too much of a surprise to learn that a person staring down at a phone, lost in a private world while walking, really messes with the vibe, according to a study published Wednesday in the journal Science Advances.
  • When those students were placed at the back of their group, the distraction did not affect how the groups moved past each other. But when the distracted walkers were at the front of the pack, there was a dramatic slowdown in the whole group’s walking pace. It also took longer for clear lanes to form.
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  • Distracted people also did not move smoothly. They took big steps sideways or dodged others in a way that the researchers rarely saw when there were no distractions. The inattentive pedestrians in the experiment induced that behavior in others as well; the people who weren’t looking at their phones moved in a more choppy fashion than they did when there were no phone-gazers.
  • Looking at one’s phone might have that effect because it deprives others of the information contained in our gazes, the researchers suggest.
caelengrubb

How Do Optical Illusions Work? - 0 views

www.verywellmind.com/optical-illusions-4020333

shared by caelengrubb on 04 Nov 20 - No Cached
  • Due to the arrangement of images, the effect of colors, the impact of light source or other variables, a wide range of misleading visual effects can be seen.
  • These phenomena demonstrate a very important principle of perception: we don't always see what's really there
  • When the viewer focused his or her attention on a specific dot, it is obvious that it is white. But as soon as attention is shifted away, the dot shifts to a gray color.
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    • caelengrubb
      caelengrubb on 04 Nov 20
       
      inattention blindness
  • the illusion was mistakenly referred to as a scientific personality test of right brain/left brain dominance by numerous websites and blogs. In reality, the spinning dancer illusion is related to a bistable perception in which an ambiguous 2-dimensional figure can be seen from two different perspectives.
  • According to this principle, objects that are grouped together tend to be seen as being part of a whole. We tend to ignore gaps and perceive the contour lines in order to make the image appear as a cohesive whole.
manhefnawi

10 Surprising Ways Senses Shape Perception | Mental Floss - 0 views

mentalfloss.com/...g-ways-senses-shape-perception

Sense Perception

shared by manhefnawi on 12 Jun 18 - No Cached
  • CERTAIN SOUNDS TAKE PRIORITY
  • PAST IMAGES AFFECT PRESENT PERCEPTION
  • COLOR INFLUENCES TASTE
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  • AND SO DOES SOUND
  • The phenomenon that allows us to tune out big details like this is called selective attention. If you devote all your mental energy to one task, your brain puts up blinders that block out irrelevant information without you realizing it.
  • The most mind-bending room in the "Our Senses" exhibit is practically empty. The illusion comes from the black grid pattern painted onto the white wall in such a way that straight planes appear to curve.
  • This conflicting sensory information can make us feel dizzy and even nauseous.
  • If our brains didn’t know how to adjust for lighting, we’d see every shadow as part of the object it falls on. But we can recognize that the half of a street that’s covered in shade isn’t actually darker in color than the half that sits in the sun.
  • The human brain is really good at recognizing human faces—so good it can make us see things that aren’t there. This is apparent in the Einstein hollow head illusion.
Javier E

TikTok Brain Explained: Why Some Kids Seem Hooked on Social Video Feeds - WSJ - 0 views

www.wsj.com/...social-video-feeds-11648866192

video social media children inattention attention gratification psychology brain science technology

shared by Javier E on 03 Apr 22 - No Cached
  • Remember the good old days when kids just watched YouTube all day? Now that they binge on 15-second TikToks, those YouTube clips seem like PBS documentaries.
  • Many parents tell me their kids can’t sit through feature-length films anymore because to them the movies feel painfully slow. Others have observed their kids struggling to focus on homework. And reading a book? Forget about it.
  • What is happening to kids’ brains?
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  • “It is hard to look at increasing trends in media consumption of all types, media multitasking and rates of ADHD in young people and not conclude that there is a decrease in their attention span,
  • Emerging research suggests that watching short, fast-paced videos makes it harder for kids to sustain activities that don’t offer instant—and constant—gratification.
  • One of the few studies specifically examining TikTok-related effects on the brain focused on Douyin, the TikTok equivalent in China, made by the same Chinese parent company, ByteDance Ltd. It found that the personalized videos the app’s recommendation engine shows users activate the reward centers of the brain, as compared with the general-interest videos shown to new users.
  • Brain scans of Chinese college students showed that areas involved in addiction were highly activated in those who watched personalized videos.
  • It also found some people have trouble controlling when to stop watching.
  • attention. “If kids’ brains become accustomed to constant changes, the brain finds it difficult to adapt to a nondigital activity where things don’t move quite as fast,”
  • A TikTok spokeswoman said the company wants younger teens to develop positive digital habits early on, and that it recently made some changes aimed at curbing extensive app usage. For example, TikTok won’t allow users ages 13 to 15 to receive push notifications after 9 p.m. TikTok also periodically reminds users to take a break to go outside or grab a snack.
  • Kids have a hard time pulling away from videos on YouTube, too, and Google has made several changes to help limit its use, including turning off autoplay by default on accounts of people under 18.
  • When kids do things that require prolonged focus, such as reading or solving math problems, they’re using directed attention
  • This function starts in the prefrontal cortex, the part of the brain responsible for decision making and impulse control.
  • “Directed attention is the ability to inhibit distractions and sustain attention and to shift attention appropriately. It requires higher-order skills like planning and prioritizing,”
  • Kids generally have a harder time doing this—and putting down their videogame controllers—because the prefrontal cortex isn’t fully developed until age 25.
  • “We speculate that individuals with lower self-control ability have more difficulty shifting attention away from favorite video stimulation,
  • “In the short-form snackable world, you’re getting quick hit after quick hit, and as soon as it’s over, you have to make a choice,” said Mass General’s Dr. Marci, who wrote the new book “Rewired: Protecting Your Brain in the Digital Age.” The more developed the prefrontal cortex, the better the choices.
  • Dopamine is a neurotransmitter that gets released in the brain when it’s expecting a reward. A flood of dopamine reinforces cravings for something enjoyable, whether it’s a tasty meal, a drug or a funny TikTok video.
  • “TikTok is a dopamine machine,” said John Hutton, a pediatrician and director of the Reading & Literacy Discovery Center at Cincinnati Children’s Hospital. “If you want kids to pay attention, they need to practice paying attention.”
  • Researchers are just beginning to conduct long-term studies on digital media’s effects on kids’ brains. The National Institutes of Health is funding a study of nearly 12,000 adolescents as they grow into adulthood to examine the impact that many childhood experiences—from social media to smoking—have on cognitive development.
  • she predicts they will find that when brains repeatedly process rapid, rewarding content, their ability to process less-rapid, less-rewarding things “may change or be harmed.”
  • “It’s like we’ve made kids live in a candy store and then we tell them to ignore all that candy and eat a plate of vegetables,”
  • “We have an endless flow of immediate pleasures that’s unprecedented in human history.”
  • Parents and kids can take steps to boost attention, but it takes effort
  • Swap screen time for real time. Exercise and free play are among the best ways to build attention during childhood,
  • “Depriving kids of tech doesn’t work, but simultaneously reducing it and building up other things, like playing outside, does,”
  • Practice restraint.
  • “When you practice stopping, it strengthens those connections in the brain to allow you to stop again next time.”
  • Use tech’s own tools. TikTok has a screen-time management setting that allows users to cap their app usage.
  • Ensure good sleep. Teens are suffering from a sleep deficit.
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