My Blog

Categoría: Emergentism

  • A biomaterial that arrange itself

    «Using DASH, the Cornell engineers created a biomaterial that can autonomously emerge from its nanoscale building blocks and arrange itself – first into polymers and eventually mesoscale shapes. Starting from a 55-nucleotide base seed sequence, the DNA molecules were multiplied hundreds of thousands times, creating chains of repeating DNA a few millimeters in size. The reaction solution was then injected in a microfluidic device that provided a liquid flow of energy and the necessary building blocks for biosynthesis.»

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  • Consciousness and the binding-problem

    While panpsychism sounds crazy, it is actually a highly viable theory of consciousness, as long as it is distinguished from animism: the view that everything is alive and therefore possesses agency, intentionality, thoughts, emotions, etc. Elementary particles almost certainly are not endowed any of these attributes, but according to (my take on) panpsychism, they have a very fundamental kind of consciousness, perhaps something akin to the feeling of presence or “being there.” —Kenneth Shinozuka

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  • The Legend of Simurgh

    The Simurgh features strongly in Persian mythology and a number of the great epic poems of Persian literature. It is said to be a mixture of peacock, griffon and lion symbolises the union of heaven and earth.

    In his epic poem The Conference of the Birds, Fariduddin Attar describes how millions of birds went in search for their perfect king, the great bird Simurgh. Many of the birds were killed during their ordeals in search of the Simurgh – climbing high peaks and plunging into dark valleys as well as fighting their own doubts and fears.

    At the end of their search only thirty birds remain to reach the gates of Simurgh’s palace. They all alight onto the throne or masnad which is described as being the seat of the Majesty and the Glory. The throne, however, remains empty and there is no sign of the Simurgh. It then becomes clear to the birds, through an inner glow which spreads through them all, that they, together, make up the Presence of the Simurgh and that the Simurgh is really just their joint presence. A literal translation of Simurgh is “Thirty Birds”.

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    They embark upon the nearly infinite adventure. They pass through seven valleys or seas; the name of the penultimate is Vertigo; the last, Annihilation. Many pilgrims give up; others perish. Thirty, purified by their efforts, set foot on the mountain of the Simurgh. At last they gaze upon it: they perceive that they are the Simurgh and that the Simurgh is each one of them and all of them. In the Simurgh are the thirty birds and in each bird is the Simurgh.

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  • The neuroscience of pain

    In 2013, Tor Wager, a neuroscientist at the University of Colorado, Boulder, took the logical next step by creating an algorithm that could recognize pain’s distinctive patterns; today, it can pick out brains in pain with more than ninety-five-per-cent accuracy. When the algorithm is asked to sort activation maps by apparent intensity, its ranking matches participants’ subjective pain ratings. By analyzing neural activity, it can tell not just whether someone is in pain but also how intense the experience is. “What’s remarkable is that basic pain signals seem to look pretty much the same across a wide variety of people,” Wager said. “But, within that, different brain systems are more, or less, significant, depending on the individual.”

    Among the brain’s many pain-producing patterns, however, there is only one region that is consistently active at a high level: the dorsal posterior region of the insula. Using a new imaging technique, Tracey and one of her postdoctoral fellows, Andrew Segerdahl, recently discovered that the intensity of a prolonged painful experience corresponds precisely with variations in the blood flow to this particular area of the brain. In other words, activity in this area provides, at last, a biological benchmark for agony. Tracey described the insula, an elongated ridge nestled deep within the Sylvian fissure, with affection. “It’s just this lovely island of cortex hidden in the middle, deep in your brain,” she said. “And it’s got all these amazing different functions. When you say, ‘Actually, I feel a bit cold, I need to put a sweater on,’ what’s driving you to do that? Probably this bit.”

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