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Tero Toivanen

BBC NEWS | Science & Environment | Simulated brain closer to thought - 1 views

news.bbc.co.uk/...8012496.stm

brain Blue Brain simulated brain science virtual simulation

shared by Tero Toivanen on 24 Apr 09 - Cached
  • A detailed simulation of a small region of a brain built molecule by molecule has been constructed and has recreated experimental results from real brains.
  • While many computer simulations have attempted to code in "brain-like" computation or to mimic parts of the nervous systems and brains of a variety of animals, the Blue Brain project was conceived to reverse-engineer mammal brains from real laboratory data and to build up a computer model down to the level of the molecules that make them up.
  • The first phase of the project is now complete; researchers have modeled the neocortical column - a unit of the mammalian brain known as the neocortex which is responsible for higher brain functions and thought.
  • ...4 more annotations...
  • "It starts to learn things and starts to remember things. We can actually see when it retrieves a memory, and where they retrieved it from because we can trace back every activity of every molecule, every cell, every connection and see how the memory was formed."
  • "The next phase is beginning with a 'molecularisation' process: we add in all the molecules and biochemical pathways to move toward gene expression and gene networks. We couldn't do that on our first supercomputer."
  • Organised columns of neurons have been simulated molecule by molecule
  • "This is very interesting research and I'm not criticising it, but it doesn't help us in computer science in having the intelligent behaviour of humans replicated." Professor Markram believes that by building up from one neocortical column to the entire neocortex, the ethereal "emergent properties" that characterise human thought will, step by step, make themselves apparent.
  • Tero Toivanen on 24 Apr 09
     
    A detailed simulation of a small region of a brain built molecule by molecule has been constructed and has recreated experimental results from real brains.
Tero Toivanen

» Working Memory Training can Influence Brain Biochemistry   « Brain Fitness ... - 0 views

www.sharpbrains.com/...n-influence-brain-biochemistry

sharpbrains working memory brain biochemistry training

shared by Tero Toivanen on 24 Feb 09 - Cached
  • The major finding was that increased working memory capacity following training was associated with changes in brain biochemistry. Specifically, the researchers found changes in the density and binding potential of cortical D1 dopamine receptors in brain regions that are activated during working memory tasks.
  • Tero Toivanen on 24 Feb 09
     
    The major finding was that increased working memory capacity following training was associated with changes in brain biochemistry. Specifically, the researchers found changes in the density and binding potential of cortical D1 dopamine receptors in brain regions that are activated during working memory tasks.
Hypnosis Training Academy

Breakthrough Stanford Research: Hypnotic Trance Changes Brain Activity - 0 views

hypnosistrainingacademy.com/-brain-activity-stanford-study

hypnosis hypnotherapy hypnotists hypnotic trance david spiegel brain activity brain patterns brain waves trance neurophysiological state hypnosis expert fMRI relief anxiety eliminate pain boost self-esteem neural changes hypnotizability

shared by Hypnosis Training Academy on 21 Sep 17 - No Cached
  • Hypnosis Training Academy on 21 Sep 17
     
    A groundbreaking Stanford Study lead by Dr. David Spiegel has revealed what hypnotists have long known about brain activity whilst under a hypnotic trance. That is: some parts of the brain function differently under hypnosis than during normal consciousness. In essence, hypnosis indeed alters brain patterns and activity. These findings might help explain the intense absorption, lack of self-consciousness and suggestibility that characterize the hypnotic state. Would you like to discover more about Dr. David Spiegel hypnosis research findings and how you can use hypnosis to control pain and increase someone's self-esteem? Check out the latest article on HypnosisTrainingAcademy.com now…..
Tero Toivanen

Musicians' brains keep time--With one another: Scientific American Blog - 0 views

www.sciam.com/...post.cfm

musicians' brain synchronize neuroscience brain waves unison

shared by Tero Toivanen on 17 Mar 09 - Cached
  • The researchers found that the guitarists' brain waves were aligned most during three pivotal times: when they were syncing up with a metronome, when they began playing the piece and at points during the composition that demanded the most synchrony.
  • The synchrony was most prominent in the frontal and central parts of the brain that regulate motor function. "Whenever synchrony of behavior was high, synchrony of brain waves were also high,"
  • While brain synchrony during a duet seems like a given, it's a mystery how it happens, says Lindenberger, a psychologist. "One could speculate that this may be related to mirror neurons, the capacity of primates and humans to imagine the action of the other person while performing actions yourself," he says. "The mirror neuron system could be active during synchronized guitar playing."
  • Tero Toivanen on 17 Mar 09
     
    Credit their brain waves: they synchronize before and while musicians play a composition, according to new research.
Tero Toivanen

Neurophilosophy : Experience induces global reorganization of brain circuitry - 0 views

scienceblogs.com/...ization_of_brain_circuitry.php

neurophilosophy brain LTP learning memory

shared by Tero Toivanen on 11 Mar 09 - Cached
  • Now referred to as long-term potentiation (LTP), this mechanism has since become the most intensively studied in modern neuroscience,and is widely believed to be the cellular basis of learning and memory, although this is yet to be proven unequivocally.
  • In the new study, Santiago Canals of the Max Planck Institute for Biological Cybernetics in Tübingen and his colleagues used the same protocol to induce LTP. But while the vast majority of researchers have investigated LTP in slices of hippocampal tissue, this study involved observing LTP in live animals.
  • This new research provides the first evidence that the local modifications in synaptic connections induced by LTP lead to long-lasting changes in the activity of a diffuse network of brain regions, and even to facilitated communication between the two hemispheres. The fMRI data showed that hippocampal LTP recruits higher order association areas, as well as regions involved in emotions and others subserving different sensory modalities, all of which are known to be involved in memory formation.
  • Tero Toivanen on 11 Mar 09
     
    Experience induces global reorganization of brain circuitry. This new research provides the first evidence that the local modifications in synaptic connections induced by LTP lead to long-lasting changes in the activity of a diffuse network of brain regions, and even to facilitated communication between the two hemispheres.
Tero Toivanen

Phasic Firing Of Dopamine Neurons Is Key To Brain's Prediction Of Rewards - 0 views

www.sciencedaily.com/...090403144032.htm

dopamine neurons brain learning rewards behavior

shared by Tero Toivanen on 04 Apr 09 - Cached
  • Our research findings provide a direct functional link between the bursting activity of midbrain dopamine neurons and behavior. The research has significant applications for the improvement of health, because the dopamine neurons we are studying are the same neurons that become inactivated during Parkinson's Disease and with the consumption of psychostimulants such as cocaine and amphetamine
  • Midbrain dopamine neurons fire in two characteristic modes, tonic and phasic, which are thought to modulate distinct aspects of behavior. When an unexpected reward is presented to an individual, midbrain dopamine neurons fire high frequency bursts of electrical activity. Those bursts of activity allow us to learn to associate the reward with cues in our environment, which may predict similar rewards in the future.
  • When researchers placed the mice in reward-based situations, they found that the mice without the NMDA receptor in their dopaminergic neurons could not learn tasks that required them to associate sensory cues with reward. Those same mice, however, were able to learn tasks that did not involve an association with rewards.
Tero Toivanen

Cognitive Daily: A quick eye-exercise can improve your performance on memory tests (but... - 1 views

scienceblogs.com/...ick_eye-exercise_can_impro.php

memory

shared by Tero Toivanen on 18 Apr 09 - Cached
  • If you're taking a test of rote memorization, like words from a list, move your eyes from side to side for about 30 seconds before you start.
  • It may be that this quick activity helps facilitate interaction between the brain hemispheres.
  • any activity that encourages communication between the hemispheres is likely to increase recall.
  • ...6 more annotations...
  • people who have poorer interactions between the hemispheres should benefit more than others. Who has less interactions between hemispheres? People who are strongly right-handed.
  • Strongly right-handed students remembered significantly more words if they moved their eyes compared to keeping their eyes still. Non-strongly-right-handed students (including left-handers) remembered the same number of words regardless of whether they moved their eyes before the test.
  • strongly right-handed students had significantly fewer false alarms after they moved their eyes back and forth. But for non-strongly-right-handed people, the reverse occurred; moving their eyes caused them to falsely remember more words. So overall, while the eye-saccade exercise helped right-handers, for lefties and for those who didn't have a strongly dominant hand, the exercise actually harmed their performance.
  • You might think that only side-to-side movement would improve performance, but Lyle's team found that moving your eyes up and down caused the same effect.
  • researchers say that other studies have shown that any eye movements increase bilateral activity in the frontal eye field, so it's still possible that hemispheric connectivity can explain the improved performance after eye movements.
  • So why doesn't the exercise work the same way for left-handers? Left handers (and ambidextrous individuals) already have a high level of hemispheric connectivity. Lyle's team speculates that there might be such a thing as too much connectivity, which results in a decrease in performance.
Hypnosis Training Academy

Interview with Dr. Paul Scheele - Pioneer Of Paraliminal Hypnosis - 0 views

hypnosistrainingacademy.com/pnosis-paul-scheeleparaliminal

Paraliminal Hypnosis Dr. Paul Scheele hypnosis hypnotherapy inner genius positive changes Paraliminals learning strategies human potential success Paul Scheele Interview hypnotist hypnosis interview hypnosis techniques

shared by Hypnosis Training Academy on 08 Sep 17 - No Cached
  • Hypnosis Training Academy on 08 Sep 17
     
    In this fascinating interview, Dr. Paul Scheele CEO of Scheele Learning Systems, explains that by activating the rich resources within the mind, it is possible to achieve phenomenal results in relationships, work, money and health. In this insightful interview, he shares his inspiring hypnosis journey - which starts off with how he came to run the oldest hypnosis practice in Minneapolis at only 19, and the life-changing epiphany that followed. You'll also discover how this realization inspired him to develop Paraliminal hypnosis to help people uncover their inner resources for success by communicating with both sides of the brain simultaneously. Curious to discover more about Paraliminal Hypnosis Technology and how you can use it to improve all areas of your life? Listen to this powerful interview at HypnosisTrainingAcademy.com now...
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