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Your Brain 'Blinks' When Your Attention Shifts, Researchers Discover (vanderbilt.edu)

Science_afficionado quotes Vanderbilt University's Research News: When your attention shifts from one place to another, your brain blinks. The blinks are momentary unconscious gaps in visual perception and came as a surprise to the team of Vanderbilt psychologists who discovered the phenomenon while studying the benefits of attention... The research was conducted with macaque monkeys that were trained to shift their attention among different objects on a display screen while the researchers monitored the pattern of neuron activity taking place in their brains... By combining advanced recording techniques that simultaneously track large numbers of neurons with sophisticated computational analyses, the researchers discovered that the activity of the neurons in the visual cortex were momentarily disrupted when the game required the animals to shift their attention. They also traced the source of the disruptions to parts of the brain involved in guiding attention, not back to the eyes.

50 of 87 comments (clear)

  1. Next up... by Arzaboa · · Score: 1

    Scientists discover people open their mouths when yawning, sometimes leading to breathing.

    --
    And a star was born.

    1. Re:Next up... by fahrbot-bot · · Score: 2

      Scientists discover people open their mouths when yawning, sometimes leading to breathing.

      Careful, breathing too much will kill you - 100% of all dead people were habitual breathers.

      --
      It must have been something you assimilated. . . .
  2. What? by Anonymous Coward · · Score: 1

    Sorry, could you repeat that? I was distracted.

    1. Re:What? by Aighearach · · Score: 1

      They said that using the mouse isn't actually faster than using the keyboard, it is slower, but your brain pauses for you when you switch focus so that you can feel smarter.

    2. Re:What? by AvitarX · · Score: 1

      I think you got that backwards.

      The blink happens when recalling shortcuts, even if it's instinct.

      I'm not vouching for the truth, but that's what I read.

      --
      Wow, sent an e-mail as suggested when clicking on "use classic" banner, and got a fast response that addressed my msg
    3. Re:What? by Aighearach · · Score: 1

      No, this is about shifting your visual focus in the case where you didn't even have to move your eyes.

      The research on recall shows quantization but not a pause.

      With a mouse you have to identify the pointer, and also the target, you can't do anything with the mouse without a visual context switch. Using a command line you don't even need to be looking at the screen or have your eyes open if you're a good typist.

  3. *Glances through PrimateBrain.cpp* by AdamStarks · · Score: 3, Funny

    Who wrote this unmaintainable shit? No comments, variable names like "azfh232", and a complete lack of whitespace are bad enough, but there's race conditions, zero edge-case handling, and an overall structure that's more organic than planned.

    This is why we have code reviews, people!

    1. Re:*Glances through PrimateBrain.cpp* by Austerity+Empowers · · Score: 1

      Nevermind the unintended side-effects that arise from spawning new processes.

    2. Re:*Glances through PrimateBrain.cpp* by burtosis · · Score: 1

      Sounds like above average graduate school 'finish this now if you want to graduate' work to me.

  4. Signal to Noise issue by omnichad · · Score: 3, Insightful

    Changing visual focus means moving your eyes or head. There's a huge rush of information as everything in between passes by in a blur. If you don't ignore that information it tries to take over your focus. I'm sure that this is probably learned behavior, much like learning to drive means learning to ignore most visual input and only see the things that matter.

    1. Re: Signal to Noise issue by Anonymous Coward · · Score: 1

      Changing visual focus means moving your eyes or head. There's a huge rush of information as everything in between passes by in a blur. If you don't ignore that information it tries to take over your focus. I'm sure that this is probably learned behavior, much like learning to drive means learning to ignore most visual input and only see the things that matter.

      Wow, you are astonishing.

      You could have saved them a metric ton of money.

      Please quit your day job.

    2. Re:Signal to Noise issue by Aighearach · · Score: 2

      If you were a more regular reader you'd have seen other studies that examined the physical mechanisms of context-switching and the physical quantization of time perception. It is a localized biological process, it is not reasonable to presume it would be learned.

      Just because you can form an idea that sounds intuitive to you, it doesn't mean you've acquired knowledge. Or even done an analysis. It just means you're credulous of your own wild and factually unsupported prognostications.

    3. Re: Signal to Noise issue by Hognoxious · · Score: 1, Informative

      WTF are you on about? GP's description of how the the visual system works is correct. It might seem continuous and detailed but in fact it's a series of frames and only the central portion has decent resolution.

      --
      Confucius say, "Find worm in apple - bad. Find half a worm - worse."
    4. Re:Signal to Noise issue by rtb61 · · Score: 1

      It will help if you do not think of thought as being a stationary state in the brain. Think of it more as repeating thought patterns, happening over and over again, a lopping structure into which new input is added and output is produced upon repeated continuous basis. Sort of like a train track, going round and round, with new inputs added to the train and new outputs dropped off by the train. Change thought and you shut to another track and the new input output pattern must be generated. Some people can maintain more independently running tracks than others and some can produce far more complex tracks than others. Added to those main tracks are smaller local tracks, the monitors picking up the inputs they are aimed at, filtering and passing them on for further processing.

      --
      Chaos - everything, everywhere, everywhen
    5. Re: Signal to Noise issue by Anonymous Coward · · Score: 3, Insightful

      But TFA explicitly says that this is different from saccades. It's about mind focus, not visual focus.

    6. Re: Signal to Noise issue by Hognoxious · · Score: 1

      The summary doesn't.

      And why do you think you've got the right to tell someone not to drive, or why that's even relevant?

      --
      Confucius say, "Find worm in apple - bad. Find half a worm - worse."
  5. Blinks by valnar · · Score: 1

    My brain blinks when I think of something I need to do in another room and after I walk there, it blinks to something else and I forget the reason I went there.
    #oldageblinkingsucks

    1. Re:Blinks by clovis · · Score: 1

      My brain blinks when I think of something I need to do in another room and after I walk there, it blinks to something else and I forget the reason I went there.
      #oldageblinkingsucks

      Were you thinking about the study mentioned in this article?
      https://www.psychologytoday.co...

    2. Re:Blinks by valnar · · Score: 1

      Hmm. Interesting article.

  6. Godel, Esher and Bach by thinkwaitfast · · Score: 1

    Didn't I read this 40 years ago?

    1. Re:Godel, Esher and Bach by brianerst · · Score: 1

      I was thinking the same damned thing. It was also in an old "Infinite Monkey Cage" episode (apropos, I suppose). The idea that the brain stops processing visual input while attention shifts is pretty common knowledge.

    2. Re:Godel, Esher and Bach by brianerst · · Score: 1, Informative

      OK, I looked it up. saccadic masking was discovered in 1898.

      Maybe these researchers have found the root neuronal cause of this, but it's hard to tell from their press release. The press release makes it seem like they discovered something wholly new rather than a new understanding of a very old bit of knowledge.

    3. Re:Godel, Esher and Bach by hey! · · Score: 4, Informative

      From the article:

      Primates are particularly suited for the study because they can shift their attention without moving their eyes. Most animals do not have this ability.

      Saccadic masking occurs during eye movement, so this is a different phenomenon; or perhaps it is the same phenomenon but it turns out that eye movement isn't really the triggering condition.

      --
      Post may contain irony: discontinue use if experiencing mood swings, nausea or elevated blood pressure.
    4. Re:Godel, Esher and Bach by edittard · · Score: 1

      How do they do that? Do they have multiple foveas?

      That aside, if I was writing a summary about something that's quite similar to something else I'd add a sentence explaining why it's different, but I'm a bit eccentric sometimes.

      --
      At the bottom of the /. main page it says 'Yesterday's News'. Well they got that right.
    5. Re:Godel, Esher and Bach by Aighearach · · Score: 1

      Wow a bot claiming to be a human but who doesn't know that peripheral vision is a thing!

      Your vocabulary betrays you; no human would be so ignorant, and yet use medical jargon terms.

      Turing test failed, but good try to the programmer, keep working at it you'll get there!

    6. Re:Godel, Esher and Bach by edittard · · Score: 1

      Wow a bot claiming to be a human but who doesn't know that peripheral vision is a thing!

      I've heard of peripheral vision. That's how I know it's not the focus of attention. It's only really good for motion detection.

      Turing test failed

      Talking to to yourself? First sign of madness, that.

      --
      At the bottom of the /. main page it says 'Yesterday's News'. Well they got that right.
    7. Re:Godel, Esher and Bach by david_thornley · · Score: 1

      Peripheral vision can be focused on. There's a natural tendency to look over there with the fovea, but that doesn't have to happen.

      --
      "When you have eliminated the unacceptable, whatever is left, however improbable, must be the truthiness" - Holmes
    8. Re:Godel, Esher and Bach by Aighearach · · Score: 1

      Right, right, but after having just "heard of it," it helps to also read the wiki page. Or like, take one fucking physiology class.

  7. Fixed Headline by zm · · Score: 1

    "Macaque monkey's brain blinks when his attention shifts, researchers discover"

    You're welcome.

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    Sig ?
    1. Re:Fixed Headline by wonkey_monkey · · Score: 1

      Humans do this too, and it's been known about for years. I don't know why it's such a surprise.

      https://en.wikipedia.org/wiki/...

      --
      systemd is Roko's Basilisk.
  8. I think those are called... by magusxxx · · Score: 1

    ...Blipverts. Excuse me, I need a Pepsi...

    --
    Care killed the cat, but satisfaction brought it back.
  9. Visual cortex only? by PPH · · Score: 2

    So my whole brain doesn't 'blink'. Just that part ... [Hnggg. Hot babe just walked by.] .... that has to wait for it's input to settle down.

    --
    Have gnu, will travel.
    1. Re:Visual cortex only? by Aighearach · · Score: 1

      That's just your neckbeard trying to take control of the host body.

      Try reducing your corn syrup consumption and bathing frequently. Concentrated fructose tips the balance in favor of the parasite, and increased oxygenation of the skin helps to prevent it from spreading.

      Shaving is also useful, but not always practicable because the neckbeard will release hormones that make the host feel unhappy when it is threatened. So it is often helpful to reduce the strength of the parasite with the above techniques before attempting surgical removal.

  10. Well by jawtheshark · · Score: 1

    Probably just a context switch, no?

    --
    Ahhh...the great dumpster continuum. Many a free computer will be found there. -- sowth (748135)
  11. Why is this a surprise? by wonkey_monkey · · Score: 1, Informative

    I thought this was well known. It stops you getting dizzy when you move your eyes, and is responsible for the stopped clock illusion:

    https://en.wikipedia.org/wiki/...

    --
    systemd is Roko's Basilisk.
  12. This if obvious by Revek · · Score: 1

    The deeper the thinker, the longer the pause.

  13. Re: Studies Show that 100% of People Who Breathe by bobbied · · Score: 1

    Ah yes the old "Correlation doesn't imply causation" fallacy...

    --
    "File to fit, pound to insert, paint to match" - Aircraft Maintenance 101
  14. Don't blink... by bobbied · · Score: 1

    Or you will miss it!

    --
    "File to fit, pound to insert, paint to match" - Aircraft Maintenance 101
  15. Can we overcome this? by OrangeTide · · Score: 1

    I wonder if this is something we can train ourselves out of? Or will we forever be doomed to not being able to text and drive?

    --
    “Common sense is not so common.” — Voltaire
  16. You mean .. saccade? by kfsone · · Score: 1

    Maybe they shouldn't have skipped that lecture.

    --
    -- A change is as good as a reboot.
  17. Re:Extrapolation. by Aighearach · · Score: 1

    if you where a macaque monkey then your brain would blink? How about other brains out there?

    Right, exactly! Where is the monkey? We can't know for certain at the same time if your brain is blinking, or if you're a monkey.

  18. Re:Brain C-states by Aighearach · · Score: 1

    No, it is clearly CISC-based and it has to flush the pipeline to change execution contexts.

  19. FAO: spammers by easyTree · · Score: 1

    Your brain farts right before you start into an 'Orange Clown' / Demonrats / Repugnicans rant =D

  20. Re:Extrapolation. by plopez · · Score: 1

    Humans are basically monkeys. We even have vestigial tails.

    --
    putting the 'B' in LGBTQ+
  21. Context switch by Tony+Isaac · · Score: 1

    It's hard for computers, hard for people too.

    Did you ever walk through a door and forget what you had planned to get in that room?

    Shifting context (attention) requires a large amount of processing. It's not surprising that the brain "blinks."

  22. Blink = Refresh by RutvijOza · · Score: 1

    Just like a computer screen refreshes...or a browser refreshes...It's just that we are N times faster

  23. Related to ADHD? by burningcpu · · Score: 1

    Saccadic masking describes the mental time cost of processing moving images. Think of watching a single fan blade spin. Your eyes must first match the velocity of the fan blade movement, to create a sort of reference frame. The brain interprets/assumes the acquisition and processing times to be 0, and as such, perception of 'real' time, skips.

    I wonder how this is related to ADHD, and the efficacy of 'finger spinners' in addressing symptoms. https://en.wikipedia.org/wiki/...

    1. Re:Related to ADHD? by burningcpu · · Score: 1

      Oh. Interesting.

      ADHD subjects fail to suppress eye blinks and microsaccades while anticipating visual stimuli but recover with medication https://www.sciencedirect.com/...

      Highlights
      Blink and saccade rates were higher in ADHD subjects in a continuous performance task.
      Medication reduced the saccade rate to control levels, and lowered the blink rate.
      ADHD subjects fail to suppress saccades and blinks while anticipating stimuli.

  24. More bunk posing as science by Hallux-F-Sinister · · Score: 1

    ...by combining advanced recording techniques that simultaneously track large numbers of neurons with sophisticated computational analyses, the researchers discovered that the activity of the neurons in the visual cortex were momentarily disrupted ...

    A few points, if I may.

    1. This study was done on MONKEYS. Humans are not monkeys. Though we have much the same DNA, that does not make us the same. Though we have common ancestors, that does not make us the same. (My feelings aren't hurt by this notion, it's simply foolish to assume that because some similarities exist, that other similarities can be safely assumed, because they often cannot.

    2. The 'magic' of 'advanced computer algorithms' is as far as I'm concerned, like the expression 'then a miracle happens' in step 2 in that old comic in which a scientist looking over another's explanation of something (step 1) and the end-result (step 3), saying (in the caption,) "you need to be a little more explicit in step 2, Johnson" or something like that. Unless someone can verify that the software algorithm really does what they claim, they have an automatic out when other people cannot reproduce their results, which means their research lacks the all-important requirement in scientific experiment of "falsifiability". So the research is basically garbage.

    3. After 2 above, there's little point in going on but I will. This "moment of unconsciousness" is not, I don't think, the great and fabulous, fascinating find they think it is. Even if we can ignore points 1 and 2 above, (and a previous responder mentioned a similar point to this, but I feel this notion is slightly different, and I thought of it before reading the other comments, which of course I can't prove, but anyway...) if you didn't mentally blank that, when the brain hooked the output of the visual system, (meaning everything from the eyes' lenses to the occiput,) the part of the brain in which the new task is being processed would be confused and have to sort-out the irrelevant information from the relevant, since in NATURE, (apart from the very new artificial world we've created,) when you switch TASKS, it's generally because you're looking at something else. For instance, when you eat dinner, you plunge a fork, lessay, into a piece of steak, you lift it to your mouth, insert it, or grab it with your teeth, or a combination of both, and then chew. You can repeat this sequence of tasks, largely unthinking. Then you get thirsty and go to take a drink of water from a small glass sitting near you. This requires an array of tasks unrelated, in neurological terms, to eating steak. One, you don't use your fork. You don't generally need to cut liquid water with your steak knife, and it's considered crass by many people to use a water-knife at the table. You reach for a vessel containing a volume of liquid, possibly with suspended chunks of solid floating near the top of the water. You might have had to set down your fork to do this. You held the fork one way, and if you try to use the same grip on the glass, you'll likely push it over because a fork's handle is a few millimeters wide, while a glass is dozens of times fatter. Instead of placing water into your mouth on the end of an implement, you have to place the rim of the glass either against, or directly above your mouth, and pour it in... it's a whole different collection of gestures and actions, and generally, before picking something up, it's a good idea to pay attention to the layout of the flatware and glasses. Odds are, you looked at the glass, to guide your fingers to it without knocking it over.

    Etc. etc. etc.

    --
    Our reign has gone on long enough. Indeed. Summon the meteors.
  25. Re:Extrapolation. by michael_wojcik · · Score: 1

    Humans are basically worms. We have an alimentary tract.

    Humans are basically bags of water.

    Humans are basically part of a thin film of organic matter on the planet's surface.

    Reducing to a generalization isn't in itself terribly informative. Are you claiming that because monkeys and humans are both primates,[1] processes observed in monkey brains can be presumed to apply in human brains as well? With high probability? Maybe?

    Mind you, I'm not saying I necessarily disagree with any of those. But if you want to make a claim, why not make a substantive one, rather than waving vaguely in the direction of phylogenetic relationship?

    [1] I'll omit any discussion of the monkey / ape distinction here, because, god, who has the patience for this?