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Tero Toivanen

The power of one - neuron | Brain Health Hacks - 2 views

brainhealthhacks.com/...the-power-of-one-neuron

brain neuron single neuron

shared by Tero Toivanen on 13 May 09 - Cached
  • The researchers found that by inducing repetitive high frequency firing of a single neuron they could switch the brain state from slow-wave sleep, to rapid-eye movement sleep.
  • Therefore, judging by these three high profile journal papers, a single neuron can make a difference - one neuron firing can change your sleep state, motor movement, or induce a behavior.
  • Tero Toivanen on 13 May 09
     
    Therefore, judging by these three high profile journal papers, a single neuron can make a difference - one neuron firing can change your sleep state, motor movement, or induce a behavior.
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

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.
anonymous

The Strange Neuroscience of Immortality - 0 views

www.scoop.it/...ge-neuroscience-of-immortality

neuroscience immortality psychology brain memory

shared by anonymous on 16 Jul 12 - No Cached
  • anonymous on 16 Jul 12
     
    "Hayworth has spent much of the past few years in a windowless room carving brains into very thin slices. He is by all accounts a curious man, known for casually saying things like, "The human race is on a beeline to mind uploading: We will preserve a brain, slice it up, simulate it on a computer, and hook it up to a robot body." He wants that brain to be his brain. He wants his 100 billion neurons and more than 100 trillion synapses to be encased in a block of transparent, amber-colored resin-before he dies of natural causes."
Catherine Plano

Thoughts are things... - 0 views

What is a thought?A thought is an electrical impulse, which fires up your neurons that are your brain cells. Neurons are electrical excitable cells that process and transmit information via your fi...

awareness beliefs brain science creation empowerment health leadership perception personal development power reflection self-awareness

started by Catherine Plano on 13 Nov 15 no follow-up yet
Tero Toivanen

How to Save New Brain Cells: Scientific American - 0 views

www.sciam.com/article.cfm

brain cells brain cells neurons

shared by Tero Toivanen on 25 Feb 09 - No Cached
  • Tero Toivanen on 25 Feb 09
     
    New research suggests that the cells ultimately help with learning complex tasks-and the more they are challenged, the more they flourish.
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.
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