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Study: Multimedia Multitasking May Be Shrinking Human Brains

An anonymous reader writes It seems that switching between laptop, smart phone and tablet may be shrinking our brains and leaving us prone to higher levels of anxiety and stress reports new research from the University of Sussex in the UK. The researchers point out that the link is currently a correlation rather than a proof of causation, but they do suggest that people who used a higher number of media devices concurrently also had smaller grey matter density — in other words they have smaller brains.

87 comments

  1. Oh crap by ArcadeMan · · Score: 4, Funny

    Web developers need to test their websites on desktops, laptops, tablets and smartphones all day long. We're as good as hot dog water sunshine, bread blue?

    1. Re:Oh crap by Anonymous Coward · · Score: 4, Funny

      It was already well-known that web developers were morons long before these devices became ubiquitous.

    2. Re: Oh crap by Anonymous Coward · · Score: 0

      Hahaha.

    3. Re:Oh crap by Anonymous Coward · · Score: 0

      Uh oh, in being "IT boffins" we are being dumbed down by our jobs.
      Maybe its good that I cling to my mantra: "I like my people clever and my devices stupid." (no 'smart'phone, 'smart'TV, etc). I can now add underneath it: "now scientifically verified."

    4. Re:Oh crap by Anonymous Coward · · Score: 0

      Ah, but smart enough to get you to use their web apps. :.)

    5. Re:Oh crap by ArcadeMan · · Score: 3, Insightful

      If web developers are morons for being able to make their stuff work on multiple operating systems on multiple versions of multiple browsers with standards that work half the time, then regular programmers who can't even optimize their programs for a single platform are just useless idiots who complain for nothing.

    6. Re:Oh crap by ArcadeMan · · Score: 1

      My TV is so dumb that it's a computer monitor.

    7. Re:Oh crap by Anonymous Coward · · Score: 0

      I'm not seeing a problem with this conclusion.

    8. Re:Oh crap by Anonymous Coward · · Score: 2, Insightful

      Actually the fact that you need such extensive work and humongous libraries just to get cross-browser stuff to work simply justifies my point. Web developers are morons.

    9. Re:Oh crap by nwaack · · Score: 1

      How did the anonymous coward's first comment get modded as funny, but ArcadeMan's rebuttal get modded as a troll? Are /. members biased against web developers?

    10. Re:Oh crap by Anonymous Coward · · Score: 1

      Because ArcadeMan is just wrong.

    11. Re: Oh crap by Anonymous Coward · · Score: 0

      Yes.

      Exhibit A: slashdot beta

      NO FURTHER QUESTIONS.

    12. Re:Oh crap by aaaaaaargh! · · Score: 1

      Actually, no.

    13. Re:Oh crap by LifesABeach · · Score: 1

      You must be drain bamaged.

  2. This again? by rogoshen1 · · Score: 1

    This story/theme seems to get posted at least once a year. Does that make it truthier? And given the benefits of this electronic crap; is the tradeoff worth it?

    1. Re:This again? by Anonymous Coward · · Score: 3, Funny

      Are you sure it has been posted before? I don't recall it. Let me check my other notebook, my tablet, and my phone to be sure. Wait, what were we taking about again?

  3. Moths by Mr+D+from+63 · · Score: 3, Funny

    Moths are attracted to bright lights, and they have very small brains. I'm seeing some kind of correlation here......

    1. Re:Moths by nblender · · Score: 4, Funny

      That explains the fuzzy wings I recently developed...

    2. Re:Moths by Anonymous Coward · · Score: 0

      Be afraid. Be very afraid.

  4. Re: Who cares by Anonymous Coward · · Score: 0

    Twit ^

  5. That explains by Spy+Handler · · Score: 1

    why PC-only gamers are the master race

  6. Massive to a Flea by Anonymous Coward · · Score: 0

    Posting anonymously about your penis size and being forced to offend in order to name a partner screams "I have a baby penis and live in mom's basement". We get it, you are not only mentally and emotionally deficient, but sexually deficient as well. Do us all a favor thimbledick, stay on the pr0n sites.

  7. Not a new concern by CRCulver · · Score: 5, Interesting

    This idea that multitasking and short attention spans have a negative impact on cognition is not new. It goes back at least to Nicholas Carr's 2008 magazine article that served as the basis for his book The Shallows .

    I think there are philosophical issues here. While the human biological organism might be "getting stupider", if our electronic devices are seen as augmentations, then doesn't our total cyborg person remain just as intelligent? That is, people have not become stupider, they have just moved some information processing from the brains in their skull to the devices in their heads.

    The appearance of emotional issues might be a serious problem, but on the other hand, let's see how future generations who grow up with electronics from their infancy feel.

    1. Re:Not a new concern by CRCulver · · Score: 2

      Sorry, that should have read "to the devices in their hands". We haven't got to neural implants yet.

    2. Re:Not a new concern by Anonymous Coward · · Score: 0

      If you had greater brain matter density, you wouldn't have made that mistake.

    3. Re:Not a new concern by citizenr · · Score: 1

      This idea that multitasking and short attention spans have a negative impact on cognition is not new. It goes back at least to Nicholas Carr's 2008 magazine article

      lol no, it goes back to Socrates

      --
      Who logs in to gdm? Not I, said the duck.
    4. Re:Not a new concern by Anonymous Coward · · Score: 0

      This is the definition of becoming more stupid. They may be more effective in today's world. But they're still more stupid.

    5. Re:Not a new concern by pmotuja · · Score: 1

      I think it would be more intelligent to realize that these computers don't exist in nature. Humans created them. If you can't understand this fact then maybe there is a self esteem issue. Also, then maybe working the devices would be more common than the devices 'working' humans. And brains would be getting bigger. Geocaching is not nature.

    6. Re:Not a new concern by Anonymous Coward · · Score: 0

      The problem is not the amount of intelligence but the amount of dependency. And this is one aspect.

      Then, let's assume for a moment that the brain is an autoconfiguring calculator. It can work as a cpu with long pipelines or as a dsp with much bandwidth. Processing external inputs need dsp power, doing abstractions and evaluating possibilities need cpu power. It would be ideal to have both powers to the max but the same neurons can't do both at the same time.

      Now who is more controllable, the dsp guys who digest a lot of information and act quickly and predictably on it or the cpu guys who process less information more slowly and more thoroughly? I ask "who is more controllable" because the thirst for control is what really rules the world, not money, or lust.

    7. Re:Not a new concern by rHBa · · Score: 2

      ...these computers don't exist in nature. Humans created them.

      By that rational ant hills don't exist in nature because the ants created them.

    8. Re:Not a new concern by Anonymous Coward · · Score: 0

      It goes back at least to Nicholas Carr's 2008 magazine article that served as the basis for his book The Shallows [amazon.com] .

      Whoa dude, you lost me when you started bringing up ancient history. I was like, no use at all in any of those classes.

    9. Re:Not a new concern by ArcadeMan · · Score: 1

      This idea that multitasking and short attention spans have a negative...

      TL;DR

    10. Re:Not a new concern by Anonymous Coward · · Score: 0

      I believe you meant to say more dumber.

    11. Re:Not a new concern by Anonymous Coward · · Score: 0

      "then doesn't our total cyborg person remain just as intelligent?

      In one word: NO.

      knowledge != intelligence

      Per chance, did you get this idea from your smartphone?

      Smartphones give access to knowledge, they don't make one smarter.

      If I gave my opinion re: anyone that owns a smartphone, I am sure that I would be -ve karma, for like, forever, hence AC..

    12. Re:Not a new concern by LongearedBat · · Score: 1

      if our electronic devices are seen as augmentations, then doesn't our total cyborg person remain just as intelligent?

      I think no, because crucial aspects intelligence include understanding and creating thinking, which none of these devices can help us with (yet?).

    13. Re:Not a new concern by gstoddart · · Score: 1

      That is, people have not become stupider, they have just moved some information processing from the brains in their skull to the devices in their (hands).

      Well, the problem might be that while some people might be remaining smart and advancing our overall knowledge and technology, that on balance individuals are getting stupider and relying more on the tech.

      So, if we're going to end up with a bunch of drooling idiots over time (and internet videos tells me there's already plenty ;-) .. is that a good thing for us?

      I routinely see 3 year olds who need a smartphone to be pacified. So what is going to happen to these kids when they reach adulthood? Will they be even less able to focus without the shiny device? Or will they be completely dependent on it for even the most basic things?

      I'm sure every generation decries that kids today seem stupider and whatnot. But, really, imagine a world where the average person is 20-30% stupider than they are now (and, yes, those numbers are arbitrary).

      Not a pretty thing to imagine.

      --
      Lost at C:>. Found at C.
    14. Re:Not a new concern by Anonymous Coward · · Score: 0

      How long till we just become Dumb Terminals for this global network?

    15. Re:Not a new concern by Anonymous Coward · · Score: 0

      Mr. CRCulver, what you've just said is one of the most insanely idiotic things I have ever heard. At no point in your rambling, incoherent statement were you even close to anything that could be considered a rational thought. Everyone in this board is now dumber for having read it. I award you no points, and may God have mercy on your soul.

    16. Re:Not a new concern by Anonymous Coward · · Score: 0

      No and that is a ridiculous idea, so a man that is on crutches has just moved his walking to something in his hands? No he has been damaged and is making up for it with a ... crutch.

    17. Re:Not a new concern by Anonymous Coward · · Score: 0

      "I think there are philosophical issues here..."

      And this is evidence of exactly what the article is talking about.

    18. Re: Not a new concern by Anonymous Coward · · Score: 0

      *rationale

      - sent from my abacus

    19. Re:Not a new concern by pmotuja · · Score: 1

      By that rational ant hills don't exist in nature because the ants created them.

      No. Ant hills are organized dirt. Computers come from the human brain. There's a difference.

    20. Re:Not a new concern by Anonymous Coward · · Score: 0

      Ant hills are organised dirt from the brains of ants, computers are organised silicon from the brains of humans. Either way we are all the product of our environment.

    21. Re:Not a new concern by Anonymous Coward · · Score: 0

      Dirt is not a machine. That's the difference.

  8. I fully agree with it by Anonymous Coward · · Score: 0

    That's why instead of running between thousands of servers one needs to focus on single server and the automation code on it to manage it all. But that's simple example. So by modelling everything on one source-code tree you can produce mental image, and brain neural network the way that it's using all regions of your brain. Otherwise you just get distracted.

  9. quit interpreting statements by Anonymous Coward · · Score: 1

    ...had smaller grey matter density â" in other words they have smaller brains.

    That's not synonymous at all.

    1. Re:quit interpreting statements by taustin · · Score: 2

      Nor does brain size particularly correlate with intelligence, or we wouldn't have the big, stupid oaf stereotype.

      I do find it entirely plausible, however, the idiots have short attention spans, and flit from distraction to distraction constantly.

    2. Re:quit interpreting statements by Anonymous Coward · · Score: 0

      It all depends what the distractions are... I have ADD, do not medicate and though I may not be MESA material... I am no idiot.

      AC because no account... this is a distraction.

    3. Re:quit interpreting statements by goarilla · · Score: 1

      I do find it entirely plausible, however, the idiots have short attention spans, and flit from distraction to distraction constantly.

      Everybody has a relative short attention spans these days, we're just bombarded with information day in day out.

    4. Re:quit interpreting statements by Anonymous Coward · · Score: 0

      Acronym Dumbness Dementia?

  10. An anonymous reader writes........ by Anonymous Coward · · Score: 0

    "Halp my brains shrunk I forgot my own name."

  11. Reverse correlation by Anonymous Coward · · Score: 0

    Only cretins use multimedia devices intensively ?

    1. Re:Reverse correlation by Aighearach · · Score: 1

      What's your problem, have a bad vacation on Crete or something? Did they use multimedia devices to shrink your brain, or did you shrink it all on your own? How do you know the Cretins did it? Did find you a note you left yourself from when you were still functional?

  12. Versa Vice by rmdingler · · Score: 2
    If it is indeed possible to see one's grey matter shrink from engaging in certain activities, then the reverse is also likely true.

    Though it has been suggested by some that you cannot work out your brain to improve its performance, I have never believed this to be the case.

    In my experience, constant problem solving improves one's cognitive abilities.

    --
    Happiness in intelligent people is the rarest thing I know.

    Ernest Hemingway

  13. Most likely they are dumb to begin with. by Anonymous Coward · · Score: 0

    I'd hardly be surprised if the people they checked in this research were generally thicker people anyway.
    Think about the typical person that uses a phone. Yeah, exactly, that image you had there. Usually they aren't the brightest people.

    Most externalization of brain function generally leads to less cognition happening in the brain anyway. The brain is smart enough to be able to recognise computers, paper and other such things as an external memory system. And with digital systems, the need to look them up manually is less because you can easily just search for things by typing in to a little box and bam there is your content.
    Only those that actively interact with said data should be "immune" to this shrinkage. Most people passively consume the content they write down, basically respeaking, rewriting or passing it on to others, not really processing it beyond that.

    I would like to see them do this research on people that actively work with the data they note down on digital devices.
    Just as they said, training on sets of data constantly can and does increase grey matter.
    I jump between multiple devices at random and have no ill effects, stress or other such things, and generally have a pretty damn high IQ at that. (still suck at doing math stuff quickly in my head though!)
    I could count more people than I have fingers that also do.
    Since there was no mention of this, I assume it probably wasn't the case with these people, these are likely your average person that just passively transcribes data to digital devices.

    1. Re:Most likely they are dumb to begin with. by goarilla · · Score: 1

      I agree, I do think it's all about the activities done on these "smart devices". I doubt
      somebody reading ebooks on his tablet is getting dumber. These test was probably filled with "media consumers".
      That new generation of couch potatoes.

  14. idiocracy by Anonymous Coward · · Score: 0

    I wonder if grey matter density is also correlated with an increasing number of children...

  15. Re:Who cares by Aighearach · · Score: 0

    I don't think my mom's gf's wife is "into that." Wrong equipment in your story, man. You've got a long ways to go before you're ready for a career at Forum magazine.

  16. Density by ShanghaiBill · · Score: 4, Informative

    From the summary: ... had smaller grey matter density — in other words they have smaller brains.

    That is NOT what density means. Density is an intrinsic property, and does not in any way imply smaller size.

    Also, the correlation between brain size and intelligence is very weak.

    1. Re:Density by Poorcku · · Score: 1

      Sorry, but I had to login just to answer to you. At an r=.40 the variance explained by brain size is about 20%. Which is huge. May I remind you that politicians and other zealots forbade smoking in public locations (at least in Europe) for correlations than this ;)

      --
      I take my children to see Madonna(..), but I never for once ever thought I was in the same business.Chris Rea.
    2. Re:Density by Poorcku · · Score: 1

      EDIT: *smaller* than this - i know, preview button. sorry.

      --
      I take my children to see Madonna(..), but I never for once ever thought I was in the same business.Chris Rea.
  17. Re:Who cares by epyT-R · · Score: 0

    doing your part for the idiocracy

  18. Re:when I get anxiety by Anonymous Coward · · Score: 0

    gross..

  19. Addicts by JimSadler · · Score: 3

    Girls between 20 and 24 seem to be seriously addicted to smart phones. I'm seeing them totally disabled and unable to stop and staying on those phones 24/7 and missing sleep and abandoning work and school and even skipping bathing to spend more time on their smart phones. We might as well open the rehabs now as a tide of these young women is about to become a huge problem. It is today's version of the video game addicts of a few years ago.

    1. Re:Addicts by Lumpy · · Score: 2

      Between 20 to 24? I suggest you observe the ages below that from 14 years old my daughter has not stopped looking at her cellphone. not even for showering... She uses a ziplock baggie so she can take the phone in the shower.

      Honestly, girls after age 13 are bat shit insane until about 30.

      --
      Do not look at laser with remaining good eye.
    2. Re:Addicts by louden+obscure · · Score: 1

      Honestly, girls after age 13 are bat shit insane until about 30.

      30? Nope, it's more like an eternity.

      --
      Serenity now, insanity later.
    3. Re:Addicts by fph+il+quozientatore · · Score: 1

      Let me guess, you are about 30. Usual my-generation-is-better bias.

      --
      My first program:

      Hell Segmentation fault

    4. Re:Addicts by Anonymous Coward · · Score: 0

      She uses a zip-lock baggie so she can take the phone in the shower.

      Time to paint the shower and bedroom: http://www.lessEMF.com/paint.html

      Honestly, girls after age 13 are bat shit insane until about 30.

      That's their sex, marriage, and pregnancy years.

    5. Re:Addicts by Lumpy · · Score: 1

      Your guess is way off.
      Boys are mentally ill idiots from age 6 until age 30 as well. Want proof? Youtube has all the proof that is needed.

      There are some exceptions, but they are very rare.

      --
      Do not look at laser with remaining good eye.
  20. What doesn't? by Anonymous Coward · · Score: 4, Interesting
  21. the zombie apocalypse by ihtoit · · Score: 3

    ...is here. This is not news. For proof, just walk along the average school route during the morning rush, kids everywhere aren't talking, they've got their faces firmly planted in Candy Crush on their super-flexible brand new hot pink iphones while their parents fight for parking spots as close to the gates as they think it's possible to get and still be able to open the doors (failing which the kids are pushed out through the sunroof). Technology and in particular Facebook has killed the art of communication and social media in general has turned the connected generation into a bunch of ignorant cunts. And woe betide the first one of you whippersnappers who clicks "Like"!

    --
    Political debates have me rolling my eyes so much I think I got optical whiplash. I should sue. - Foamy The Squirrel
    1. Re:the zombie apocalypse by Rob+Kaper · · Score: 1

      Why are the parents going to school?

  22. Density of specific brain structure not brain size by Anonymous Coward · · Score: 0

    Lower density. Meaning less neuronal connections. Meaning stupider people.

    I know no one actually thinks for themselves these days, just wants to be spoon fed self-reassuring wikipedia pages, but I think you can connect the dots here.

    Read the discussion! It's open access journal. Here, let me spoon feed you,

    As hypothesized, the present study revealed a significant relationship between media multitasking and brain structure variations: Individuals who reported higher amounts of media multitasking had smaller gray matter density in the ACC. This association was significant at a stringent threshold (pFWE-correctedsensorimotor, nociceptive, higher cognitive and emotional/motivational processes

    So there you go. They didn't measure brains. They measured specific brain part that shows significant correlation with cognition. And in people multi-tasking with many devices, guess what? That area was smaller.

    Like in deaf people, the hearing part of the brain shrinks due to disuse. Here, the cognitive processing part of the brain shrinks probably due to the same reasons.

    PS. If you want citations, the paper has those. Not that I actually expect people to read them.

  23. SUMMARY IS WRONG, AGAIN!!!! by Anonymous Coward · · Score: 1

    Ok, this is getting a little ridicules but it appears people are not even willing to copy/paste article titles. Brains are not "shrinking". Part of brain associated with certain traits, like cognition is,

    Higher media multi-tasking activity is associated with smaller gray-matter density in the anterior cingulate cortex

    If you have no CLUE what "anterior cingulate cortex", you can't just delete it and substitute BRAIN in its place.

    So how about "Multimedia Multitasking Associated with Structural Changes in the Brain" ?? "The Brain" didn't shrink. That specific cortex shrunk. As to what it doesn, it's in the article too!

  24. Oh, we're reporting on grey matter now? by Anonymous Coward · · Score: 0

    Why didn't Soulskill and the other hippies at Slashdot cover the story about marijuana use causing a significant redistribution of grey matter? Shouldn't we be concerned that a drug can cause a significant change of our own brains?

    http://www.ncbi.nlm.nih.gov/pubmed/21982932

  25. Sensasionalism much? by Anonymous Coward · · Score: 0

    Talk about sensasionalist headlines. "Multitasking can shrink your brain!" as a headline and somewhere in the text "but this research doesn't prove that in any way".

    (posting this as AC because slashdot is acting weird and won't let me load stories while logged in... It's probably sensing the criticism)

  26. Finally! by Anonymous Coward · · Score: 0

    Finally, the decline of slashdot is scientifically explained!

  27. multi screen by svalery · · Score: 1

    what about those who have multiple screens. run music and tv all while going through 100's of email and making comments on slashdot?

    1. Re:multi screen by TeknoHog · · Score: 1

      what? puppies! bassline.

      --
      Escher was the first MC and Giger invented the HR department.
  28. the zombie apocalypse by n1ywb · · Score: 2

    Hurrrr! Get off my lawn!

    --
    -73, de n1ywb
    www.n1ywb.com
  29. Damaramu has a very compact brain by zeroryoko1974 · · Score: 1

    I, Damaramu, shall regret this...

  30. Wow by anonxanon · · Score: 1

    Wow, didn't know something like that would be possible.