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Graham Perrin

Brain scanner can tell a Dali from a Picasso - life - 26 November 2009 - New Scientist - 4 views

www.newscientist.com/...ell-a-dali-from-a-picasso.html

2009 2009-11 2009-11-29 unread

shared by Graham Perrin on 29 Nov 09 - Snapshot
  • Brain scanner can tell a Dali from a Picasso
  • 26 November 2009
  • patterns in activity that were unique to each artist
  • ...3 more annotations...
  • the program correctly identified the painter better than chance alone
  • activity in multiple brain regions, not just visual
  • the brain has an "abstract code" for different artistic styles
Graham Perrin

Car crash victim trapped in 'coma' for 23 years was conscious | World news | guardian.co.uk... - 5 views

www.guardian.co.uk/...man-trapped-coma-23-years

2009 2009-11 2009-11-22

shared by Graham Perrin on 23 Nov 09 - Snapshot
  • Car crash victim trapped in 'coma' for 23 years was conscious
  • Belgian neurologist tested new brain scanner
  • Kate Connolly
  • ...16 more annotations...
  • 23 November 2009
  • Current brain-scanning techniques failed to detect Houben's conscious state
  • a state-of-the-art scanning system
  • real "state" was discovered three years ago
  • just been made public by the doctor who rescued him
  • Laureys' findings are likely to reopen the debate over when the decision should be made to terminate the lives of those in comas
  • appear to be unconscious
  • might have almost fully-functioning brains
  • Glasgow Coma Scale
  • requires assessment of the eyes, verbal and motor responses
  • they failed to assess him correctly
  • missed signs that his brain was still functioning
  • coma patients are diagnosed falsely "on a disturbingly regular basis"
  • In around 40% of cases diagnosed as vegetative, more careful examination shows there is still some level of consciousness
  • 44 patients believed to be in a vegetative state
  • 18 of them responded to communication
  • Graham Perrin
    Graham Perrin on 23 Nov 09
Graham Perrin

How To Hack Your Brain, Part 1: Sleep | Dustin Curtis - 9 views

dustincurtis.com/sleep.html

REM rapid eye movement sleep brain hack monophasic sleep polyphasic sleep nap non-24-hour sleep-wake syndrome

shared by Graham Perrin on 25 Jun 09 - Snapshot
Graham Perrin liked it
  • a daily sleep-wake cycle that lasts about 28 hours instead of 24
  • Eventually, I discovered that if I stuck to a 28-hour schedule, my body was happy; I woke up rested, went to sleep tired, and everything worked great.
  • incompatible with the rest of the world
  • ...16 more annotations...
  • I probably have is called non-24-hour sleep-wake syndrome
  • polyphasic sleep
  • can be used by anyone
  • shave 6 hours off your normal sleeping time
  • all you really need to survive and feel rested is the REM phase,
  • a tiny portion of your actual sleep phases at night. You only spend 1-2 hours in REM sleep during any given night
  • If you’ve gone 24 hours without sleep
  • your body goes instantly into REM sleep as a protection mechanism
  • train it to enter REM for short periods of time throughout the day
  • 20-minute naps rather than in one lump at night

  • With monophasic sleep, you sleep for eight hours and you get about 2 hours of good REM sleep. This is the normal schedule most people use, and it means about five hours of the night are lost to (as far as we know) unnecessary unconsciousness.

  • five methods for polyphasic sleep
  • all focus on many 20-minute naps throughout the day
  • possibly a couple hours of core sleep at night
  • The “everyman” method is just a stepped ladder acting as a guide to show how much core sleep to have for any number of naps. The amount of total sleep per day is drastically reduced for each extra nap you add.
    • Graham Perrin
      Graham Perrin on 02 Oct 09
       
      This sounds like me, since suffering from tinnitus.
  • If you miss a nap, the whole schedule is thrown off and you’ll feel tired for days.
  • Graham Perrin
    Graham Perrin on 02 Oct 09
     
    Ramblings from a user interface designer and amateur neuroscientist.
Danny Rhay

Animals That Favor One Side More Successful: Discovery News - 0 views

dsc.discovery.com/...brain-handedness.html

shared by Danny Rhay on 12 Sep 09 - Snapshot

  • suggests a brain operates like a dual processor in a computer, with each of the brain's two sides kicking into action depending on the content or context of the information.



    The findings also help to explain many prior surprising observations, such as why you should avoid approaching your boss, or any dominant primate, from the left-hand side.

  • Carrying the findings over to humans, this suggests, in part, that a right-handed person isn't more successful than a left-handed one, and vice-versa, but people who always favor a certain hand, foot or eye for certain tasks will likely perform better than those who don't exhibit obvious preferences.
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