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Tero Toivanen

Tests find benefit of sleeping on job - Science, News - The Independent - 0 views

www.independent.co.uk/...f-sleeping-on-job-1700191.html

brain sleep REM problem solving

shared by Tero Toivanen on 09 Jun 09 - Cached
  • A type of dreamy sleep that occurs more frequently in the early morning is important for solving problems that cannot be easily answered during the day, a study has found.
  • The discovery could explain many anecdotal accounts of famous intellectuals who had wrestled with a problem only to find that they have solved it by the morning after a good night's sleep.
  • Scientists believe that a form of dreaming slumber called rapid-eye movement (REM) sleep, when the brain becomes relatively active and the eyes flicker from side to side under closed eyelids, plays a crucial role in subconscious problem solving.
  • ...3 more annotations...
  • Those people who had enjoyed REM sleep improved significantly, by about 40 per cent, while the other volunteers who had not had REM sleep showed little if any improvement, according to the study published in the journal Proceedings of the National Academy of Sciences.
  • In a series of tests on nearly 80 people, the researchers found that REM sleep increases the chances of someone being able to successfully solve a new problem involving creative associations – finding an underlying pattern behind complex information.
  • The researchers suggest that it is not merely sleep itself, or the simple passage of time, that is important for the solving of a new problem, but the act of being able to fall into a state of REM sleep where the brain slips into a different kind of neural activity that encourages the formation of new nerve connections.
  • Tero Toivanen on 09 Jun 09
     
    A type of dreamy sleep that occurs more frequently in the early morning is important for solving problems that cannot be easily answered during the day, a study has found.
cecilia marie

Computer Problem Solved - 1 views

I was having difficulties with the computer problem I am facing with and it really disturbs me. I cannot proceed with my school works well because it keeps on showing up. Then I discovered Compu...

computer problem

started by cecilia marie on 13 Jul 11 no follow-up yet
David McGavock

How Did Consciousness Evolve? - The Atlantic - 0 views

www.theatlantic.com/...485558

research Consciousness Evolution

shared by David McGavock on 12 Jun 16 - No Cached
  • consciousness, is rarely studied in the context of evolution.
  • What is the adaptive value of consciousness? When did it evolve and what animals have it?
  • Attention Schema Theory (AST),
  • ...20 more annotations...
  • suggests that consciousness arises as a solution to one of the most fundamental problems facing any nervous system: Too much information constantly flows in to be fully processed. The brain evolved increasingly sophisticated mechanisms for deeply processing a few select signals at the expense of others,
  • The next evolutionary advance was a centralized controller for attention that could coordinate among all senses. In many animals, that central controller is a brain area called the tectum
  • It coordinates something called overt attention
  • The tectum is a beautiful piece of engineering. To control the head and the eyes efficiently, it constructs something called an internal model, a feature well known to engineers. An internal model is a simulation that keeps track of whatever is being controlled and allows for predictions and planning.
  • With the evolution of reptiles around 350 to 300 million years ago, a new brain structure began to emerge – the wulst
  • our version is usually called the cerebral cortex and has expanded enormously
  • The cortex is like an upgraded tectum
  • The most important difference between the cortex and the tectum may be the kind of attention they control
  • tectum is the master of overt attention—pointing the sensory apparatus toward anything important
  • cortex ups the ante with something called covert attention
  • Your cortex can shift covert attention from the text in front of you to a nearby person, to the sounds in your backyard, to a thought or a memory. Covert attention is the virtual movement of deep processing from one item to another.
  • the cortex must model something much more abstract.
  • it does so by constructing an attention schema
  • a constantly updated set of information that describes what covert attention is doing moment-by-moment and what its consequences are
  • The attention schema is therefore strategically vague. It depicts covert attention in a physically incoherent way, as a non-physical essence. And this, according to the theory, is the origin of consciousness. We say we have consciousness because deep in the brain, something quite primitive is computing that semi-magical self-description.
  • In the AST, the attention schema first evolved as a model of one’s own covert attention. But once the basic mechanism was in place, according to the theory, it was further adapted to model the attentional states of others, to allow for social prediction
  • theory of mind, the ability to understand the possible contents of someone else’s mind.
  • Language is perhaps the most recent big leap in the evolution of consciousness. Nobody knows when human language first evolved. Certainly we had it by 70 thousand years ago when people began to disperse around the world, since all dispersed groups have a sophisticated language.
  • Maybe partly because of language and culture, humans have a hair-trigger tendency to attribute consciousness to everything around us.
  • Justin Barrett called it the Hyperactive Agency Detection Device, or HADD
  • David McGavock on 12 Jun 16
     
    The Attention Schema Theory (AST), developed over the past five years, may be able to answer those questions. The theory suggests that consciousness arises as a solution to one of the most fundamental problems facing any nervous system: Too much information constantly flows in to be fully processed. The brain evolved increasingly sophisticated mechanisms for deeply processing a few select signals at the expense of others, and in the AST, consciousness is the ultimate result of that evolutionary sequence. If the theory is right-and that has yet to be determined-then consciousness evolved gradually over the past half billion years and is present in a range of vertebrate species.
Tero Toivanen

YouTube - Man without a memory - Clive Wearing [BBC - Time: Daytime] - 3 views

www.youtube.com/watch

youtube neuropsychology memory present moment

shared by Tero Toivanen on 03 Jan 10 - Cached
Ruth Howard liked it
  • Tero Toivanen on 03 Jan 10
     
    Man who don't have memory and is constantly living in the present moment.
  • ...2 more comments...
  • Ruth Howard on 04 Jan 10
     
    I love that ' bump up against' people and ideas counter to those which we' ve previously aligned-that' s kind of how I see aging gracefully-being able to see many more and others viewpoints-otherwise aging can seem like becoming caricatures of ourselves-we so believe our own thoughts (beliefs are after all only our much/most repeated thoughts!) and there' s no room for anyone or anything else! Mmmmmm yeah but now to live it!
  • Tero Toivanen on 04 Jan 10
     
    My mother had a stroke and now she has big problems to communicate. She understands allmost everything, but have great problems to express herself speaking. Aging is not easy thing if you have problems with your health.
  • Ruth Howard on 05 Jan 10
     
    Truly! It' s alot slower to align with our preferences for sure when sick. I sincerely recommend www.bruno-groening.org as a resource The Bruno Groning Circle of Friends-all volunteers!. It' s a type of Faith healing that I recognise as quite remarkable. It has strong old world Germanic Christian vibe and/but dont let that put you off the ' healing stream' which is very easy to teach to yourself/your mother and available to all regardless of religious affliations.
  • Tero Toivanen on 05 Jan 10
     
    Thak you for the link : )
Tero Toivanen

YouTube - Brain-Computer Interfaces (Krishna Shenoy, Stanford University) - 0 views

www.youtube.com/watch

brain computer interfaces Krishna Shenoy

shared by Tero Toivanen on 23 May 09 - Cached
  • Tero Toivanen on 23 May 09
     
    Video of Krishna Shenoy of Stanford University about brain-computer interfaces, wich could help people suffering problems to communicate.
Tero Toivanen

Let me sleep on it: Creative problem solving enhanced by REM sleep - 0 views

www.physorg.com/news163700544.html

REM sleep problem solving brain neuropsychology

shared by Tero Toivanen on 09 Jun 09 - Cached
  • "Participants grouped by REM sleep, non-REM sleep and quiet rest were indistinguishable on measures of memory," said Cai. "Although the quiet rest and non-REM sleep groups received the same prior exposure to the task, they displayed no improvement on the RAT test. Strikingly, however, the REM sleep group improved by almost 40 percent over their morning performances."
  • The study by Sara Mednick, PhD, assistant professor of psychiatry at UC San Diego and the VA San Diego Healthcare System, and first author Denise Cai, graduate student in the UC San Diego Department of Psychology, shows that REM directly enhances creative processing more than any other sleep or wake state. Their findings will be published in the June 8th online edition of the Proceedings of the National Academy of Sciences (PNAS).
  • Tero Toivanen on 09 Jun 09
     
    "Participants grouped by REM sleep, non-REM sleep and quiet rest were indistinguishable on measures of memory," said Cai. "Although the quiet rest and non-REM sleep groups received the same prior exposure to the task, they displayed no improvement on the RAT test. Strikingly, however, the REM sleep group improved by almost 40 percent over their morning performances."
David McGavock

The Top 10 Challenges for Brain Science in 2013 - Forbes - 0 views

www.forbes.com/...nges-for-brain-science-in-2013

shared by David McGavock on 31 Dec 12 - No Cached
  • 1. Figure out what fMRI can truly tell us about our brains. 
  • There’s little question fMRI is valuable, but too many disparate forces are out there spinning brain scans in too many ways. Perhaps one solution, or start of a solution, is a summit hosted by a credible, well-respected institute or organization to gather the best of the best minds in the field to establish a game plan moving forward.
  • 2. Determine what role, if any, neuroscience should play in the courtroom.
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  • . Continue crafting a constructive consilience between disciplines.
  • Neuroscience, behavioral science, evolutionary biology, economics, engineering, and even the humanities have all come to the proverbial table in the last few years
  • Produce more applicable knowledge and less curious meanderings.
  • 7. Join forces with more public health sources to engender broader awareness of critical issues. 
  • Try to fight the urge to spin off more headline pablum like “Brain Porn.”
  • How about we spend more time trying to solve the problems and less time concocting clever catch phrases?
  • Shine the light on how far the forces of marketing have exploited brain science advances (this is a genuine public service).
  • I am an unwavering advocate of making sure people understand how the forces of marketing are using the field to sell more products.
  • Again, what is truly “solid applicable knowledge” is frequently debatable (see #1 above), but every year the field–and by that I mean the interdisciplinary field (#3)–has more to offer the public.
  • 8. Put the brakes on “building a brain” — we already have plenty of them.
  • in my opinion we have enough to do with respect to figuring our how our organic brain works without spending massive resources on trying to recreate one.
  • 9. Turn the corner from “what’s wrong with our brains” to “what we can really do about it.” 
Tero Toivanen

Your Brain at Work - YouTube - 0 views

www.youtube.com/watch

brain research neuroscience learning neurons synapse memory science problem solving

shared by Tero Toivanen on 03 Nov 12 - Cached
  • Tero Toivanen on 03 Nov 12
     
    This is Fantastic!
  • Tero Toivanen on 03 Nov 12
     
    This is Fantastic! via Jesse Soininen
Tero Toivanen

Eide Neurolearning Blog: The Biology of Creativity - Right Hemispheric Thinking, Proble... - 0 views

eideneurolearningblog.blogspot.com/...ativity-right-hemispheric.html

neurolearning brain hemispheric creativity Right Hemispheric Thinking

shared by Tero Toivanen on 23 May 09 - Cached
  • A Northwestern research group has found that people that solve anagram puzzles by sudden insight rather than by conscious search or analytic strategies have an EEG resting state that prefers the right over the left hemisphere.
  • How often it does seem that it's the highly creative child who is having the greatest struggles in the conventional classroom! It's nice finding research that backs up the association. From this Harvard study, a diffuse attentional style was much more common among individuals with high lifetime levels of creative achievement.
  • The study concludes with a final interesting finding that differences in this attentional style might account for why high IQ beyond a certain point doesn't correlate with higher levels of creative achievement (the threshold effect...e.g. that once one is beyond 120, higher numbers don't correlate with enhanced achievement). If a focused vs. diffuse attentional style is taken into account, then it becomes more evident that diffuse attentional style + high IQ are important factors that contribute to high levels of creative achievement.
  • Tero Toivanen on 23 May 09
     
    A Northwestern research group has found that people that solve anagram puzzles by sudden insight rather than by conscious search or analytic strategies have an EEG resting state that prefers the right over the left hemisphere.
Tero Toivanen

Naps, Learning and REM : The Frontal Cortex - 0 views

scienceblogs.com/...naps_learning_and_rem.php

brain learning REM productivity memory

shared by Tero Toivanen on 03 Jul 09 - Cached
  • Taking a nap without REM sleep also led to slightly better results. But a nap that included REM sleep resulted in nearly a 40 percent improvement over the pre-nap performance.
  • The study, published June 8 in The Proceedings of the National Academy of Sciences, found that those who had REM sleep took longer naps than those who napped without REM, but there was no correlation between total sleep time and improved performance. Only REM sleep helped.
  • Numerous studies have now demonstrated that REM sleep is an essential part of the learning process. Before you can know something, you have to dream about it.
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  • The breakthrough came in 1972, when psychologist Jonathan Winson came up with a simple theory: The rabbit brain exhibited the same pattern of activity when it was scared and when it was dreaming because it was dreaming about being scared. The theta rhythm of sleep was just the sound of the mind processing information, sorting through the day's experiences and looking for any new knowledge that might be important for future survival. They were learning while dreaming, solving problems in their sleep.
  • Wilson began his experiment by training rats to run through mazes. While a rat was running through one of these labyrinths, Wilson measured clusters of neurons in the hippocampus with multiple electrodes surgically implanted in its brain. As he'd hypothesized, Wilson found that each maze produced its own pattern of neural firing. To figure out how dreams relate to experience, Wilson recorded input from these same electrodes while the rats were sleeping. The results were astonishing. Of the 45 rat dreams recorded by Wilson, 20 contained an exact replica of the maze they had run earlier that day. The REM sleep was recapitulating experience, allowing the animals to consolidate memory and learn new things. Wilson's lab has since extended these results, demonstrating that "temporally structured replay" occurs in both the hippocampus and visual cortex.
  • Tero Toivanen on 03 Jul 09
     
    Taking a nap without REM sleep also led to slightly better results. But a nap that included REM sleep resulted in nearly a 40 percent improvement over the pre-nap performance
Tero Toivanen

Eide Neurolearning Blog: Recess Essential for Improving Attention - 0 views

eideneurolearningblog.blogspot.com/...s-essential-for-improving.html

neurolearning recess learning behavior

shared by Tero Toivanen on 23 May 09 - Cached
  • New research suggests that play and down time may be as important to a child’s academic experience as reading, science and math, and that regular recess, fitness or nature time can influence behavior, concentration and even grades.
  • Young children with sensory processing disorders are especially susceptible to behavioral and attention problems if they are not allowed to move and exercise throughout their day.
  • Tero Toivanen on 23 May 09
     
    New research suggests that play and down time may be as important to a child's academic experience as reading, science and math, and that regular recess, fitness or nature time can influence behavior, concentration and even grades.
Tero Toivanen

Low Pessimism Protects Against Stroke: The Health and Social Support (HeSSup) Prospecti... - 2 views

stroke.ahajournals.org/...187

pessimism optimism stroke brain research

shared by Tero Toivanen on 07 Jan 10 - Cached
  • Tero Toivanen on 07 Jan 10
     
    It's good for your life and health to be optimist.
  • Ruth Howard on 11 Jan 10
     
    It' s a slightly different perspective that I' m enjoying at this time but I appreciate it may only be true for some-I' ve just begun to understand what "faith" means tho I' m not religious-still! (I feel some empathy now as to why people are) I feel much more inclined to just sit still and connect inside with the Source of me-any meditation or spiritual practice can lead me there or creativity,music too,nature! But to deliberately connect to the part of us all that is connected and knows/is All. From that place I' ve understood that theres noone to be, nowhere to go, nothing to do as we are all there already as we are all IT! So of course daily I forget this but this insight has gifted me much more optimism as I can assume that whatever I really ask for/intend/desire is already in the big melting pot that we can Life/God. That is ' faith' Ive realised now- to ask and know intimately that it' s already a given and to STOP Worrying and completely ignore the naysayers etc. It' s really trusting that I' m connected to it all and I am not separate. I' m beginning to observe quite distinctly the thoughts that separate me from what I want/intend. Particularly in relation to my fellow beings! But then I turn to the place that is connected and I feel so good! and just thinking of the situation from that place and holding that good feeling in relation and giving it over (the problem) really helps! I know several spiritual teachers have said "give it over to me". I' m starting to understand it really is that simple. Trying hard and worrying just create such muck and mire! This may be part of the surrender letting go and letting God that others speak of also? I reckon it would be interesting to see where how people get there faith/trust in life that creates the underlying optimism. What gives that to them? I remember as a child I had it naturally I often got what I asked for and intended and there was an abundance of flow and optimism. No resistance. Fear and doubt come later
Tero Toivanen

The Neural Advantage of Speaking 2 Languages: Scientific American - 0 views

www.scientificamerican.com/article.cfm

brain bilingual research skills second language monolingual

shared by Tero Toivanen on 22 Jan 10 - Cached
  • The ability to speak a second language isn’t the only thing that distinguishes bilingual people from their monolingual counterparts—their brains work differently, too. Research has shown, for instance, that children who know two languages more easily solve problems that involve misleading cues.
  • The findings suggest that after learning a second language, people never look at words the same way again.
  • “The most important implication of the study is that even when a per­son is reading in his or her native language, there is an influence of knowledge of the nondominant second language,” Van Assche notes. “Becoming a bilingual changes one of people’s most automatic skills.”
  • Tero Toivanen on 22 Jan 10
     
    "The most important implication of the study is that even when a per son is reading in his or her native language, there is an influence of knowledge of the nondominant second language," Van Assche notes. "Becoming a bilingual changes one of people's most automatic skills."
Tero Toivanen

Reading, E-Books and the Brain : The Frontal Cortex - 0 views

scienceblogs.com/...ding_e-books_and_the_brain.php

brain reading dorsal route Dehaene research E-books

shared by Tero Toivanen on 17 Oct 09 - Cached
  • Although scientists had previously assumed that the dorsal route ceased to be active once we learned how to read, Deheane's research demonstrates that even literate adults still rely, in some situations, on the same patterns of brain activity as a first-grader, carefully sounding out the syllables.
  • This research suggests that the act of reading observes a gradient of fluency. Familiar sentences printed in Helvetica activate the ventral route, while difficult prose filled with jargon and fancy words and printed in an illegible font require us to use the slow dorsal route.
  • The larger point is that most complaints about E-Books and Kindle apps boil down to a single problem: they don't feel as "effortless" or "automatic" as old-fashioned books. But here's the wonderful thing about the human brain: give it a little time and practice and it can make just about anything automatic.
  • Tero Toivanen on 17 Oct 09
     
     Although scientists had previously assumed that the dorsal route ceased to be active once we learned how to read, Deheane's research demonstrates that even literate adults still rely, in some situations, on the same patterns of brain activity as a first-grader, carefully sounding out the syllables.
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