Slashdot Mirror


Scientists Identify Parts of Brain Involved In Dreaming (theguardian.com)

An anonymous reader quotes a report from The Guardian: Scientists have unpicked the regions of the brain involved in dreaming, in a study with significant implications for our understanding of the purpose of dreams and of consciousness itself. What's more, changes in brain activity have been found to offer clues as to what the dream is about. Writing in the journal Nature Neuroscience, Siclari and colleagues from the U.S., Switzerland and Italy, reveal how they carried out a series of experiments involving 46 participants, each of whom had their brain activity recorded while they slept by electroencephalogram (EEG) -- a noninvasive technique that involved placing up to 256 electrodes on the scalp and face to monitor the number and size of brainwaves of different speeds. While the experiments probed different aspects of the puzzle, all involved participants being woken at various points throughout the night and asked to report whether they had been dreaming. If the participants had been dreaming, they were asked how long they thought it had lasted and whether they could remember anything about their dream, such as whether it involved faces, movement or thinking, or whether it was instead a vivid, sensory experience. Analysis of the EEG recording reveal that dreaming was linked to a drop in low-frequency activity in a region at the back of the brain dubbed by the researchers the "posterior cortical hot zone" -- a region that includes visual areas as well as areas involved in integrating the senses. The result held regardless of whether the dream was remembered or not and whether it occurred during REM or non-REM sleep. The researchers also looked at changes in high-frequency activity in the brain, finding that dreaming was linked to an increase in such activity in the so-called "hot zone" during non-REM sleep. Further, the team identified the region of the brain which appears to be important in remembering what a dream was about, finding that this recall was linked to an increase in high-frequency activity towards the front of the brain. A similar pattern of activity was seen in the hot zone and beyond for dreams during REM sleep. The upshot is that dreaming is rooted in the same changes in brain activity regardless of the type of sleep.

86 comments

  1. Mine is broken. :( by Narcocide · · Score: 1

    I only have the same one, over and over again...

  2. What if you don't dream? by irrational_design · · Score: 0

    Supposedly everyone dreams, but after 44+ years I have no recollection of ever dreaming. I'd love for them to scan me while I'm sleeping to see if I actually do dream. I suspect I don't, otherwise why wouldn't I ever remember dreaming?

    1. Re: What if you don't dream? by Anonymous Coward · · Score: 0

      Set your alarm to wake you up in the middle if night. It is more likely to temember dreams that way.

    2. Re:What if you don't dream? by PopeRatzo · · Score: 1

      why wouldn't I ever remember dreaming?

      You may be an android.

      --
      You are welcome on my lawn.
    3. Re:What if you don't dream? by invalid_user · · Score: 1

      And must be destroyed!

      https://www.youtube.com/watch?...

    4. Re:What if you don't dream? by Anonymous Coward · · Score: 0

      Same with me, and it takes me about a minute to fall asleep.

    5. Re:What if you don't dream? by Quirkz · · Score: 1

      Hah. You and I should be teamed up in the study, because we're diametric opposites. I'm 42, and the last time I woke up and *didn't* recall dreaming, I was in high school. If there are times when I'm not dreaming, that would be a surprise.

    6. Re:What if you don't dream? by spaceman375 · · Score: 1, Informative

      Dream recall directly correlates with how much zinc and b6 you get in your diet. b6 is water soluble, zinc needs to build up a serum level. Funny thing; cum is high in zinc, and most men on western diets are deficient in zinc. I know in my teens and twenties I put out LOTS of cum on a daily basis, enough to rival most girls monthly periods, yet all the hype about women getting enuf iron never mentions men getting zinc. Try taking 50mgs of b6 and 30mgs of Zn for a week or so. Take them at lunchtime, not just before bed. You may be surprised. I admit it may have been psychosomatic, but the first time I took them I had so many dreams the next morning felt like it was 3 days later.

      --
      On the one hand you take life too seriously, and on the other, you do not take playful existence seriously enough. Seth
    7. Re:What if you don't dream? by sheramil · · Score: 1

      Supposedly everyone dreams, but after 44+ years I have no recollection of ever dreaming.

      Try a vitamin B supplement after breakfast. I've found it promotes vivid dreams.

    8. Re:What if you don't dream? by antdude · · Score: 1

      For me, I am always dreaming even in naps. :(

      --
      Ant(Dude) @ Quality Foraged Links (AQFL.net) & The Ant Farm (antfarm.ma.cx / antfarm.home.dhs.org).
    9. Re:What if you don't dream? by lucm · · Score: 1

      why wouldn't I ever remember dreaming?

      Buy smaller bottles at the liquor store. That's how I got my own blackouts under control.

      --
      lucm, indeed.
    10. Re:What if you don't dream? by Anonymous Coward · · Score: 0

      why wouldn't I ever remember dreaming?

      You may be an android.

      Don't androids dream of electric sheep?

    11. Re:What if you don't dream? by haruchai · · Score: 1

      I do dream but don't remember very many, perhaps 1 or 2 a year. And all but a few in my entire life have been very mundane, dreams about going to work or school. I've read a huge amount of sci-fi, fantasy, comics, historical fiction and haven't had NOT ONE dream about any of it that I can recall.
      I have a few dreams, perhaps 1/2 a dozen about flying under my own power, which is very cool but none in the past 25 years.

      --
      Pain is merely failure leaving the body
    12. Re:What if you don't dream? by haruchai · · Score: 0

      why wouldn't I ever remember dreaming?

      You may be an android.

      Then wouldn't he dream of electric sheep?

      --
      Pain is merely failure leaving the body
    13. Re:What if you don't dream? by rtb61 · · Score: 2

      You know what I an the other way round, I remember dreams as readily as normal everyday memories, no difference. Of course, just like everything I do not remember during normal daily activities much the same with remembering dreams. So what is the most interesting thing I remember from dreams is instances of deja vu. Every time I have an incident of deja vu I can place the dream and the memories that surround it even the segue into and out of the deja vu dream element. So that incident of deja vu is disruptive, using a car like analogy because it it like your pedalling along on your push bike life and all of a sudden you hit a tram track and you life is on a dream rail tracking exactly your current life experience, which is quite disturbing (that sense of loss of control). Whilst each instance of deju vu has not been at all illuminating. What I have noticed is, it causes a pause in action and a change of direction, no real useful information, just a jarring and a delay at the end of the experience often associated with a change of direction very subtle changes, turn left instead of right or just a sufficient delay. The most emphatic of moment deja vu was with another person waffling on and pulling up to a red light, the deja vu moment stopped when the light turned green and disturbed by it I did not take off, just as a person drove through a red light and would have tboned me on my side if I had moved (blind intersection so I could not see them until too late). So after fifty years odd of life and attempting to correlate deja vu with actual outcomes, its seems like a subtle push to change your direction possibly to avoid a very negative outcome, without any information about that outcome, just that subtle, well for most of you subtle tweak (at a guess a quantum consciousness push from the future to the past to the present, weird things happen down there compared to up here).

      Now that deja vu thing is really disturbing mainly because of all those other dreams, whilst some of them have been quite fun, interesting and challenging, even life threatening I certainly do not want them to be instance of deja vu (I quite enjoy nightmares, I can always wake up or change it if bored or particularly annoyed). Now you could test for the validity of deja vu extending life, but there are of course two tricks in there, your life might no come under great threat so no deja vu and of course when deja vu fails, how do you tell.

      Now statistically speaking it might not have any relevance due to the numbers of dreams you have, based around your own life and their potential to coincidentally align with future actions, keeping in mind the short duration of deja vu and no winning lottery numbers deja vu, not that I have ever dreamed of any and I struggle to read in dreams unless I specifically focus before hand.

      --
      Chaos - everything, everywhere, everywhen
    14. Re:What if you don't dream? by umghhh · · Score: 1

      I stopped drinking once for a whole weekend, the whole weekend I kept sober. This was a grueling experience - the world was as ugly as I remembered it from before I started drinking. Brrrr never again. There is a reason god gave us alco and drugs you know.

    15. Re:What if you don't dream? by Anonymous Coward · · Score: 0

      Your mom swallows plenty of zinc.

    16. Re:What if you don't dream? by AmiMoJo · · Score: 1

      I put out LOTS of cum on a daily basis

      ...

      the first time I took them I had so many dreams the next morning felt like it was 3 days later

      Are these things connected?

      --
      const int one = 65536; (Silvermoon, Texture.cs)
      SJW, n: "Someone I don't like, and by the way I'm a fuckwit" - AC
    17. Re:What if you don't dream? by bluefoxlucid · · Score: 0

      Memory requires encoding. To remember an event, you need it to go through the prefrontal cortex for interpretation, encoding, and event storage.

    18. Re: What if you don't dream? by Anonymous Coward · · Score: 0

      420 stops dreams. Stop 420 and they come back.

  3. I dream about Margaret Thatcher by Anonymous Coward · · Score: 0

    every night.

    1. Re:I dream about Margaret Thatcher by Anonymous Coward · · Score: 0

      Is the Iron Lady of your dreams made of real iron?

    2. Re:I dream about Margaret Thatcher by Anonymous Coward · · Score: 0

      Yes! With a sheet metal cock!

    3. Re:I dream about Margaret Thatcher by Opportunist · · Score: 1

      Poor you. Go get professional help!

      --
      We used to have a Bill of Rights. Now, with the rights gone, all we have left is the bill.
  4. Dreaming is GC for the brain by Rujiel · · Score: 1

    It operates on the low level activity of the brain, which happens to be experienced as the manifest content of the dream.. bottom up rather than top down, still focusing on areas recently or intermittantly written to. That's my hunch, amyway

  5. I dream in code. by Anonymous Coward · · Score: 0

    Wouldn't it be neat if I could commit the code in my dreams straight to GitHub?

    1. Re:I dream in code. by 93+Escort+Wagon · · Score: 4, Funny

      Unfortunately dream variables are all locally scoped - as soon as you wake up, they're undefined.

      --
      #DeleteChrome
    2. Re:I dream in code. by zifn4b · · Score: 1

      Unfortunately dream variables are all locally scoped - as soon as you wake up, they're undefined.

      When you go to sleep again, is the state of the scope loaded from disk or is there an entirely new scope?

      --
      We'll make great pets
    3. Re:I dream in code. by 93+Escort+Wagon · · Score: 1

      It depends on whether you're running Sleep 2 or Sleep 3.

      --
      #DeleteChrome
    4. Re:I dream in code. by GuB-42 · · Score: 1

      Unfortunately dream variables are all locally scoped - as soon as you wake up, they're undefined.

      Uhm... it explains why it looks consistent at first but try to access it later and it becomes full of garbage.
      A common bug, someone probably returned a pointer to a local variable.

  6. Change it? by Anonymous Coward · · Score: 0

    My brother had some mildly traumatic stuff happen in his early teens. My fam wasn't into therapy and he kept having the same troubling dreams. He decided that rather than be tormented he would be on control. Each night he would determine to drift off to sleep peacefully - but he had a plan to remember and also take specific action during the dream. Seemed like he beat it. Long term it seemed like he was remembering all his dreams, and was in a more participatory role. Could all be bullshit, but you could try relaxing before sleep and making an effort to remember. Just a thought, and it is free...

    1. Re:Change it? by Anonymous Coward · · Score: 0

      Back in the 80's the OMNI science magazine had an article on how to control your dreams. It actually worked for me. All it took for me was for several nights, just before dropping off, I'd say to myself, "I'm going to fly tonight." I had a few flying dreams, just like Superman.

    2. Re:Change it? by Anonymous Coward · · Score: 1

      Lucid dreaming, it's a thing and can be fun. You can also remember to count your fingers and or toes (just do it every now and again when you're awake and eventually you should do it when you're dreaming too) you'll almost never have the right number in your dreams, also check the time, clocks don't seem to work too well in dreams. The fingers and toes one works for me. As soon as you know you're dreaming you need to focus on the details like the texture of the floor etc or you might bounce out of the dream. Flying is fun, explore the solar system whatever but sex tends to jolt you out of the dream... damn.

    3. Re:Change it? by fisted · · Score: 1

      Can confirm -- what worked for me (surprisingly fast) was getting into the habit of checking every now and then whether I'm able to breathe through my nose while I held it closed (obviously do it in a discreet manner at work or wherever). Unfortunately, the first time I actually did this while dreaming, I got so excited about it that I woke up. Took a few more nights for the first actual lucid dream.

      PROTIP: Make a plan what to do in your (lucid) dream, in advance. If you end up there not knowing what to do/dream next, the whole place becomes blurry and you wake up.

      another protip: When you do wake up from a lucid dream (or even from a regular dream, after having practiced it for a while), don't blindly believe you've actually woken up. It's very common to *dream* of waking up, and it can be sort of spooky. Easy solution: After waking up, look at the clock, look away, look at the clock again. If you get the same reading twice, you've probably woken up. If not, use the realization for yet another lucid dream, if you're in the mood.

      final protip: Sleep paralysis *is* scary. Don't shit yourself, it goes away.

    4. Re:Change it? by Anonymous Coward · · Score: 0

      Very interesting - thank you

    5. Re:Change it? by ananamouse · · Score: 1

      I commonly fall asleep but then start dreaming that I am laying there still awake trying to sleep. Sometimes something will wake me up and I will realize that I was asleep but thought I wasn't. It really is horrible because I get no rest.

  7. Re:Mine is broken. :( by Anonymous Coward · · Score: 0

    Me too. It keeps telling me that he must die.

  8. Re:Mine is broken. :( by Anonymous Coward · · Score: 0

    Every night I kill me.

  9. I wish I was rich... by grimfate · · Score: 1

    A while ago I told myself that if I ever got rich, I'd invest in research into a machine that could record dreams. I'm sure we're still a ways off from achieving this (if it's even possible) but I just really want to be able to rewatch my dreams.

    1. Re:I wish I was rich... by Anonymous Coward · · Score: 0

      Just learn lucid dreaming and dream anything you want. Who needs a machine?

      Or if you're trying to remember them, keep a dream diary. The memories fade quickly.

    2. Re:I wish I was rich... by lucm · · Score: 1

      I had an erotic dream and I want to make it a prophetic erotic dream by acting it out.[NSFW]

      i didn't see the ending coming. Kudos to whoever made that comic!

      --
      lucm, indeed.
    3. Re:I wish I was rich... by Khyber · · Score: 1

      Oglaf is like, pure fuckery, literal and figuratively.

      --
      Still waiting on Serviscope_minor to wake up to fucking reality and realize that Jessica Price isn't going to fuck him.
    4. Re:I wish I was rich... by Anonymous Coward · · Score: 0

      Hey now, Oglaf is surreal sex comedy, not fucking pornography.

    5. Re:I wish I was rich... by Opportunist · · Score: 1

      Is that the internet version of "I read it for the articles"?

      --
      We used to have a Bill of Rights. Now, with the rights gone, all we have left is the bill.
  10. Red Flag for fraud by Anonymous Coward · · Score: 0

    "The result held regardless of whether the dream was remembered or not "
    So you are dreaming even if you don't remember it and they cannot prove you were dreaming because this one part of your brain was going off. With logic and rigor like this, we can prove anything!

  11. Cats Humans by Anonymous Coward · · Score: 0

    I'd rather know what my cat is dreaming about than what other people are dreaming about tho.

  12. Learning from the mistakes of others by Anonymous Coward · · Score: 0

    IMHO, it's for learning from OTHER people's mistakes.

    Hypothesis:
    1. You witness things done by 3rd person.
    2. Some of those things include dangerous and or fatal mistakes and or pleasurable.
    3. Your brain replays the days events as though it was you doing it so it can learn from what you saw.
    4. You learn not to do fatal and or dangerous thing.

    This has a clear evolutionary advantage, each new danger that appears needs to be learned and protected against, and if that danger is fatal, you need to be able to learn from witnessing the danger, experiencing the danger would be too late.

    1. Re:Learning from the mistakes of others by Anonymous Coward · · Score: 0

      Maybe that explains why I dreamt 3 times in a row last night very lucidly and realistically that I'm Boris Johnson, after I'd taken melatonin for better sleep. This is not a political statement, it was just weird and felt real in an uncanny way.

  13. Dr. Chandra by 93+Escort+Wagon · · Score: 1

    ... will I dream?

    --
    #DeleteChrome
    1. Re:Dr. Chandra by Anonymous Coward · · Score: 0

      To Sal: "Of course, all sentient beings dream."

      To Hal (asking about a different kind of dreaming): "I don't know."

      "Thank you for your honesty."

      Fortunately, Hal did much more than simply dream.

  14. social dreaming by Anonymous Coward · · Score: 0

    what other people are dreaming about

    As soon as grimfate sells his patented dream recorder to Zuckerberg, Facebook will be able to tell you exactly which other people have been dreaming about you.

  15. Face it scientists by Anonymous Coward · · Score: 0

    Dreams are one of those things you will never understand. They've done similar tests like eight million times, and the theories just get more and more ludicrous.

    1. Re:Face it scientists by Anonymous Coward · · Score: 0

      Flight is another of those things you will never understand. Jump off a cliff headfirst.

  16. Re: Mine is broken. :( by Anonymous Coward · · Score: 0

    The wall will include a big beautiful door, so no worries. Now they can dream of crossing the dorr.

  17. Re:You FAIL 1t? by Anonymous Coward · · Score: 0

    goat

  18. Theres a Goddess out There by Anonymous Coward · · Score: 0

    When you see her in your dreams, you'll want more.

    Keep dreaming. She's been calling you.

    Run across those fields and jump over those fences.

    They're coming...

    And so is she.

    1. Re:Theres a Goddess out There by Anonymous Coward · · Score: 0

      She is a goddess and she is the queen mother of the west. I've seen her in my sleep.

  19. You're Not The One by Anonymous Coward · · Score: 0

    Dreams stay with you
    Always on my mind, I've got a lust for life
    Seasons bring truth
    When I found mine, it was summertime

  20. Politicians by Togden · · Score: 1

    Scientists Identify Parts of Brain Involved In Dreaming. Politicians have welcomed the move as progress towards extinguishing all hope.

    1. Re:Politicians by Anonymous Coward · · Score: 0

      Scientists helped Nazi politicians exterminate the Jews.

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

      Scientists helped Nazi politicians exterminate the Jews.

      Well done! Godwin in two posts.

    3. Re:Politicians by Anonymous Coward · · Score: 0

      So did railway engineers, train drivers, bureaucrats, and everyone who knew and pretended not to.

  21. Re:Lucid Wet Dreaming by Anonymous Coward · · Score: 0

    All men register for the draft. It's called Selective Service and you have to register or you don't get financial aid to earn that college degree you need to have a chance to suck cock to the top.

    The problem with America today is the draft is never called. Pussy ass boys won't protest wars because manipulative politicians realized nobody cares about the wars as long as nobody is at risk of being drafted, so the military industrial complex can do whatever the fuck it wants without complaint.

  22. not even able to understand a microprocessor... by alexmagni · · Score: 1

    This from january seems relevant... https://hardware.slashdot.org/... : Could a Neuroscientist Understand a Microprocessor?

  23. Curious by Dunbal · · Score: 1

    How do people who are blind from birth dream and does it still involve the visual areas of the brain...?

    --
    Seven puppies were harmed during the making of this post.
    1. Re:Curious by budgenator · · Score: 1

      I don't know but my grant proposal "How do people who are blind from birth dream and does it still involve the visual areas of the brain and how does it differ from Climate Deniers who are blind from birth dream and does it still involve the visual areas of the brain." just got accepted.

      --
      Apocalypse Cancelled, Sorry, No Ticket Refunds
    2. Re:Curious by Gilgaron · · Score: 1

      No first hand knowledge, but blind people still use the visual cortex to process their surroundings and how to orient themselves. So they'll just dream in whatever sensory input their visual cortex has been trained with.

    3. Re:Curious by GuB-42 · · Score: 1

      So nowadays, you need to talk about climate change in some way to get a grant? What's next?
      - Accurate rendering of underwater caustics in the context of raising sea levels
      - High efficiency airplane control surfaces and the effect of CO2 on aerodynamic drag
      - Melting tungsten and how global warming may reduce the required temperature differential
      - How crossing the even horizon of a black hole may affect climate

  24. Soulless by Anonymous Coward · · Score: 0

    Supposedly everyone dreams, but after 44+ years I have no recollection of ever dreaming. I'd love for them to scan me while I'm sleeping to see if I actually do dream. I suspect I don't, otherwise why wouldn't I ever remember dreaming?

    Simple, it's because you are one of the soulless ones.

    1. Re:Soulless by Anonymous Coward · · Score: 0

      He is a ginger?

  25. fMRI by 110010001000 · · Score: 1

    Let me guess: more fMRI quackery?

    1. Re:fMRI by Anonymous Coward · · Score: 0

      Let me guess: more fMRI quackery?

      Let me guess: you didn't even read the summary. It literally says they used EEG, in the third line.

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

      yes but they are clearly comparing "brain regions" based on identifications made with fMRI.

  26. WTF is unpicked? by Anonymous Coward · · Score: 1

    I hate being pedantic, but for a group of intelligent people, slashdot has really been going downhill.

    1. Re:WTF is unpicked? by Anonymous Coward · · Score: 0

      Unpicked is a pretty common idiom meaning carefully analysing (or breaking things down into their component parts).

      It's a sewing/embroidery term and has its stature due to English literature; it has been for a couple of hundred years.

      For once, Slashdot is not displaying a total failure of basic grammar and semantics.

  27. Lucidity by Anonymous Coward · · Score: 0

    Is this a dream?

  28. In a related study... by Anonymous Coward · · Score: 0

    In a related study, they also found that this part of the brain starts to quickly decay the day you get your first real job. They also found out that the part of the brain responsible for "hoping" also had the same level of decay.

  29. The real racism by Texmaize · · Score: 1

    The racist in this conversation is you. You are the one equating countries other than the U.S. as a prison. The rest of the world is not evil, stupid, and worthless. Your whole disgusting thought process is based in the notion that you are superior and others offer nothing. Not only is this idea absurd, it is harmful. YOU and people like you are the problem in the world.

    --
    "Liberalism is a very noble idea, currently controlled by some very bad people. Be sure you do not get the two confused.
    1. Re:The real racism by Neuronwelder · · Score: 1

      I would have given you a point for saying the truth of what this country consists of, and then stopped. The rest of it is too vague for me.

  30. Part of the left brain and part of the right brain by Anonymous Coward · · Score: 0

    Gimme that juicy grant money, y'all !