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isaac Mao

Brain science to help teachers get into kids' heads - science-in-society - 16 September... - 30 views

  • "In medicine, we have an excellent system in place to go from basic research to clinical practice, while in neuroscience we have the basic understanding of how the brain learns but still need to figure out how to translate this into the classroom," says Manfred Spitzer of the University of Ulm in Germany, one of the conference organisers. With brain imaging and, increasingly, genetic studies now complementing psychology research, a host of new findings could inform teachers about the conditions in which our brains can be primed to learn best.
isaac Mao

Memristor minds: The future of artificial intelligence - tech - 08 July 2009 - New Scie... - 1 views

  • And he found something missing: a fourth basic circuit element besides the standard trio of resistor, capacitor and inductor. Chua dubbed it the "memristor". The only problem was that as far as Chua or anyone else could see, memristors did not actually exist.
isaac Mao


shared by isaac Mao on 08 Feb 09 - Cached
  • is an interactive multiresolution next-generation brain atlas that is based on over 20 million megapixels of sub-micron resolution, annotated, scanned images of serial sections of both primate and non-primate brains and that is integrated with a high-speed database for querying and retrieving data about brain structure and function over the internet. Currently featured are complete brain atlas datasets for various species, including Macaca mulatta, Chlorocebus aethiops, Felis catus, Mus musculus, Rattus norvegicus, and Tyto alba.
isaac Mao

Study Shows How The Brain Pays Attention; Neural Circuits That Control Eye Movements Pl... - 2 views

  • "Without regulating your attention, you would orient to everything that appears and moves. An organism that couldn't filter anything just wouldn't work. It would be in a state of constant distraction," said Moore. "This work shows that, whether we are moving our eyes or not, the networks that control eye movements may be a source of that filtering."
isaac Mao

Exercise and your brain: Why working out may help memory: Scientific American Blog - 12 views

  • Glucose metabolism naturally slows with age, and memory begins to decline in our 30s, says co-author Scott Small, an associate professor of neurology at Columbia University Medical Center in New York. The new study suggests a possible association between the two, because elevated blood sugar appears to damage the dentate gyrus, Small says.
isaac Mao

untitled - 0 views

  • have shown that both calorie restriction and intermittent fasting along with vitamin and mineral intake, increase resistance to disease, extend lifespan, and stimulate production of neurons from stem cells.
  • Physical exercise may also have beneficial effects on neuron regeneration by stimulating regeneration of brain and muscle cells via activation of stress proteins and the production of growth factors. But again, additional research suggests that not all exercise is equal. Interestingly, some researchers found that exercise considered drudgery was not beneficial in neuronal regeneration, but physical activity that was engaged in purely for fun, even if equal time was spent and equal calories were burned, resulted in neuronal regeneration.
    absolutely, green food make sense
isaac Mao

Dream Recorder: New Technology Could Display Your Dreams on Screen - 2 views

  • In a nutshell, the device converts electrical signals sent to the visual cortex into images that can be viewed on a computer screen. In their experiment, they showed test subjects the six letters in the word neuron and succeeded in reconstructing the word on screen by measuring their brain activity. As the technology progresses, it could be possible to "see" what people are thinking, what they dream about and record it for posterity. What do you think? Would that be awesome or scary as hell? All I know is that image weirds me out. [Yahoo Image via Pink Tentacle Thanks Roger!]
isaac Mao

Memories may be stored on your DNA - 26 November 2008 - New Scientist - 0 views

  • To remember a particular event, a specific sequence of neurons must fire at just the right time. For this to happen, neurons must be connected in a certain way by chemical junctions called synapses. But how they last over decades, given that proteins in the brain, including those that form synapses, are destroyed and replaced constantly, is a mystery.
  • Many genes are already coated with methyl groups. When a cell divides, this "cellular memory" is passed on and tells the new cell what type it is - a kidney cell, for example. Miller and Sweatt argue that in neurons, methyl groups also help to control the exact pattern of protein expression needed to maintain the synapses that make up memories.
isaac Mao

Solidot | 骗局的神经学依据 - 0 views

  • THOMAS是一个强大的神经回路,当我们被信任时会释放出影响神经系统的化学物质催生素(oxytocin),引诱得到报答的渴望。骗局的关键不是你去相信骗子,而是骗子表现出他信任你。骗子会展示他是如何的需要你的帮助,令人以为他们是多么的脆弱。因为THOMAS的效应,我们在帮助他人时会自我感觉良好——这是家庭和朋友关系、以及与陌生人合作的基础。
isaac Mao

22条方法优化大脑完整版 - 0 views

  • 大脑就是一台三磅重的超级计算机。它是身体运行的命令和控制中心。它几乎涉及你所做的每一件事。你的大脑决定你如何思考,如何感觉,如何行动,以及如何与他人相处。你的大脑甚至决定你是哪一类的人。它决定了你有多善解人意;你有多友善或是有多粗鲁。它决定了你思维有多敏捷,这还涉及到你工作完成的如何以及你的家庭。你的大脑还影响你的情感活动,以及你如何对待异性。
  • 可以充当情绪兴奋剂的味道有薄荷,柏杨和柠檬。起到舒缓作用的味道有:依兰,天竺葵和玫瑰。滴几滴精油在浴缸中或者在扩散器中,都可以起到作用。你也可以在一个棉球或手帕中滴一两滴,然后吸入这种味道。对于办公地点使用的一个警告:先确保没有人对你使用的精油过敏。
isaac Mao

Your Child's Growing Brain | ParentCenter - 0 views

  • Most of the brain's wiring is established during the first few years of life. At birth it was only about a quarter of its eventual adult size. But by age 2, it has reached three-fourths of adult size! And by 5, the brain will be very close to adult size and volume.
  • Surprisingly, the brain of a 2-year-old has trillions of connections — double the number that an adult has! The brain grows connections in response to all kinds of input in order to adapt and survive. Over time, certain connections are used again and again while others fall by the wayside
isaac Mao

Mind Hacks: Monochrome dreaming - 0 views

  • Watching black and white television as a child may explain why older people are less likely to dream in colour than younger people, according to new study reported in New Scientist.
isaac Mao

Neuron - Wikipedia, the free encyclopedia - 1 views

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  • Neurons exist in a number of different shapes and sizes and can be classified by their morphology and function. The anatomist Camillo Golgi grouped neurons into two types; type I with long axons used to move signals over long distances and type II without axons. type I cells can be further divided by where the cell body or soma is located. The basic morphology of type I neurons, represented by spinal motor neurons, consists of a cell body called the soma and a long thin axon which is covered by the myelin sheath. Around the cell body is a branching dendritic tree that receives signals from other neurons. The end of the axon has branching terminals (axon terminal) that release transmitter substances into a gap called the synaptic cleft between the terminals and the dendrites of the next neuron.
isaac Mao

Forming Social Memories - 7 views

  • such as the amygdala, which is specialized in the memory of emotions.
isaac Mao

Every drink shrinks the brain, warns new research | - 2 views

  • The American research, which looked at brain scans of more than 1800 people, comes after Australia's National Health and Medical Research Council released draft guidelines warning that more than two drinks a day posed a health risk.
  • Their MRI scans revealed brain volume of moderate drinkers was almost 1% smaller than teetotallers while those who had 14 or more drinks a week suffered 1.2% shrinkage.
isaac Mao

untitled - 0 views

  • For middle-aged and older adults, searching the Internet could be a boost to the brain, a new study suggests.
  • ...3 more annotations...
  • The researchers used functional magnetic resonance imaging scans to record subtle brain-circuitry changes in the patients as they performed Web searches and read book passages. fMRI scans track the intensity of cell responses in the brain by measuring the level of blood flow through the brain
  • But Internet searches revealed differences between the two groups. While all the participants showed the same activity as during the book-reading, the Web-savvy group also registered activity in the frontal, temporal and cingulate areas of the brain, whereas those new to the net did not. (These areas of the brain control decision-making and complex reasoning.)
  • Compared with reading, the wealth of choices on the Internet requires that people make decisions about what to click on, which engages important cognitive circuits in the brain
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