The powerful psychedelic can give you a near-death experience. Here is how it affects your brain on the inside.
Dimethyltryptamine, or DMT, is a powerful psychedelic whose effect on the human brain lasts for only some minutes, but in that short span of time, the user experiences some high-level mental changes.
The researchers examined the brain activity of the participants before, during, and after the DMT test. Here is what they found.
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Dark matter does not emit or reflect light, nor does it interact with electromagnetic forces, making it exceptionally difficult to detect. Nevertheless, a research team from The Education University of Hong Kong (EdUHK) has proven that there is a substantial amount of dark matter surrounding black holes. The study results are published in the journal The Astrophysical Journal Letters.
The team selected two nearby black holes (A0620-00 and XTE J1118+480) as research subjects, with both considered as binary systems. That is, each of the black holes has a companion star orbiting it. Based on the orbits of the companion stars, observations indicate that their rates of orbital decay are approximately one millisecond (1ms) per year, which is about 50 times greater than the theoretical estimation of about 0.02ms annually.
To examine whether dark matter exists around black holes, the EdUHK team applied the “dark matter dynamical friction model”—a theory widely held in academia—to the two chosen binary systems, through computer simulations. The team found that the fast orbital decay of the companion stars precisely matches the data observed.
Speeding through the Universe and leaving a wake of new stars, this runaway supermassive black hole is likely the first among thousands.
Using AI, Ting Xu and her colleagues designed polymer mixtures that mimic the natural proteins in biological fluids. The technique could improve the design of biocompatible materials.
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http://www.ted.com Philosopher Dan Dennett makes a compelling argument that not only don’t we understand our own consciousness, but that half the time our brains are actively fooling us.
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Daniel Dennett.
May 14, 2014
Serious thinkers contend that free will cannot exist in a deterministic universe — one in which events are the singular outcomes of the conditions in which they occur. The alternative view, that free will is prerequisite for personal responsibility and morality, is the basis of our legal and religious institutions. Philosopher Daniel Dennett unravels this conundrum and asks whether we must jettison one of these notions, or whether they can co-exist. He then asks: if free will is an illusion, as many scientists say, should we conclude that we don’t need real free will to be responsible for our actions?
Daniel Dennett is the Austin B. Fletcher Professor of Philosophy and Director, Center for Cognitive Studies at Tufts University.
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Today we’re going to try to save reality — or at least realism. However this rescue effort has a price; one that you may not be willing to pay. Your very soul, or at least your free will, is on the line.
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Derk Pereboom claims that free will is impossible because of its incompatibility with both determinism and indeterminism. Also he defends a robust nonreductive physicalism. It says that although consciousness can’t be reduced to physical it’s not something over and above physical.
The interview was taken by Vadim Vasiliev and Dmitry Volkov. Below you’ll see a list of questions of the interview.
1. The most influential books.
2. What are the differences between notions of moral responsibility and basic desert?
3. Which type of punishment should be eliminated if we find out that there is no justification for basic desert?
4. Is indignation as a reaction on wrongdoing a kind of irrational emotion?
5. How was the manipulation argument invented?
6. Why you’ve recently changed a presentation of the first case of Manipulation Argument?
7. How does the problem of free will relate to the problem of mental causation?
8. Could the problem of personal identity pose difficulties for moral responsibility and for basic desert? And why causal determinism is at the focus of free will debate?
9. Is there a real difference between hard incompatibilist’s position and that of compatibilists?
10. Can you list or name some differences and similarities between you and Daniel Dennett?
11. Could cognitive science and neuroscience eliminate the discussion on free will?
12. What is a definition of mental?
13. What were the most important changes of your views?
14. What is meaning of life?
15. What is your current research?
Summary: While scores for verbal reasoning and matrix reasoning have decreased, scores for spatial reasoning have improved, researchers report.
Source: Northwestern University.
IQ scores have substantially increased from 1932 through the 20th century, with differences ranging from three to five IQ points per decade, according to a phenomenon known as the “Flynn effect.”
