The use of sound is one of the most common methods of communication both in the animal kingdom and between humans.
How Do We Learn Languages? | Brain Blogger - 0 views
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human speech is a very complex process and therefore needs intensive postnatal learning to be used effectively. Furthermore, to be effective the learning phase should happen very early in life and it assumes a normally functioning hearing and brain systems.
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Nowadays, scientists and doctors are discovering the important brain zones involved in the processing of language information. Those zones are reassembled in a number of a language networks including the Broca, the Wernicke, the middle temporal, the inferior parietal and the angular gyrus. The variety of such brain zones clearly shows that the language processing is a very complex task. On the functional level, decoding a language begins in the ear where the incoming sounds are summed in the auditory nerve as an electrical signal and delivered to the auditory cortex where neurons extract auditory objects from that signal.
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Training the brain to boost self-confidence - Medical News Today - 0 views
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Self-confidence is generally defined as the belief in one's own abilities. As the University of Queensland in Australia put it, self-confidence describes "an internal state made up of what we think and feel about ourselves."
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low self-confidence can also increase the risk of mental health problems, such as depression and bipolar disorder.
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The researchers came to their findings through the use of a novel imaging technique known as "decoded neurofeedback." This involves brain scans to monitor complex brain activity patterns.
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Scientists use patterns to in the experiment to make hypothesis. I find it interesting that although correlation does not mean causation, it is still very useful for inductive reasoning. This article also talks about how confidence can affect ourselves, and how we can affect out confidence. The definition of confidence here states that confidence is our belief in ourselves. Why do we need confidence? Why do we need an internal statement to reassure us that our decision is right? --Sissi (12/22/2016)
TOK Natural Science as an Area of Knowledge (AOK) - Amor Sciendi - 0 views
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There are, however, others who declare that these claims are not of the Natural Sciences. A knowledge claim in the natural sciences needs to be falsifiable in order to be tested, and claims regarding a multiverse are not falsifiable. This view of science is most closely associated with the philosopher of science Karl Popper and more recently by Neil Degrasse Tyson. Tyson claims that the multiverse theory, and others like it, do not fall under “science”, but “philosophy”. He claims that in physics, for example, a concept constitutes knowledge if it accurately predicts the future and can be tested empirically. Questions about why certain models work can be discussed and debated over dinner, but those ‘why’ questions are not scientific. We can predict where the moon will be at any given time on the strength of our equations, but questions about why those equations work are for philosophers if they cannot be answered with a falsifiable claim.
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The natural sciences rely heavily on reason, in particular inductive reasoning. The statement, “all bodies observed so far obey Newton’s law of gravity” has been used to justify a believe in Newton’s law of gravity. Belief structures like this are the backbone of Natural Science, but there are notable philosophers of science who are quick to point out the fallacy of induction. David Hume, for example, questioned the assumption he referred to as the “uniformity of nature”. In short, simply because all observed bodies follow a pattern tell us nothing of unobserved bodies, and the “uniformity of nature” (the belief that nature behaves uniformly) cannot be proven. This brings us to....
inductive reasoning - 0 views
Inductive Reasoning: What Is It? - 0 views
Do Political Experts Know What They're Talking About? | Wired Science | Wired... - 1 views
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I often joke that every cable news show should be forced to display a disclaimer, streaming in a loop at the bottom of the screen. The disclaimer would read: “These talking heads have been scientifically proven to not know what they are talking about. Their blather is for entertainment purposes only.” The viewer would then be referred to Tetlock’s most famous research project, which began in 1984.
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He picked a few hundred political experts – people who made their living “commenting or offering advice on political and economic trends” – and began asking them to make predictions about future events. He had a long list of pertinent questions. Would George Bush be re-elected? Would there be a peaceful end to apartheid in South Africa? Would Quebec secede from Canada? Would the dot-com bubble burst? In each case, the pundits were asked to rate the probability of several possible outcomes. Tetlock then interrogated the pundits about their thought process, so that he could better understand how they made up their minds.
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Most of Tetlock’s questions had three possible answers; the pundits, on average, selected the right answer less than 33 percent of the time. In other words, a dart-throwing chimp would have beaten the vast majority of professionals. These results are summarized in his excellent Expert Political Judgment.
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Metacontrol and body ownership: divergent thinking increases the virtual hand illusion ... - 0 views
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The virtual hand illusion (VHI) paradigm demonstrates that people tend to perceive agency and bodily ownership for a virtual hand that moves in synchrony with their own movements. Given that this kind of effect can be taken to reflect self–other integration (i.e., the integration of some external, novel event into the representation of oneself), and given that self–other integration has been previously shown to be affected by metacontrol states (biases of information processing towards persistence/selectivity or flexibility/integration), we tested whether the VHI varies in size depending on the metacontrol bias. Persistence and flexibility biases were induced by having participants carry out a convergent thinking (Remote Associates) task or divergent-thinking (Alternate Uses) task, respectively, while experiencing a virtual hand moving synchronously or asynchronously with their real hand. Synchrony-induced agency and ownership effects were more pronounced in the context of divergent thinking than in the context of convergent thinking, suggesting that a metacontrol bias towards flexibility promotes self–other integration.
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As in previous studies, participants were more likely to experience subjective agency and ownership for a virtual hand if it moved in synchrony with their own, real hand. As predicted, the size of this effect was significantly moderated by the type of creativity task in the context of which the illusion was induced.
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It is important to keep in mind the fact that our present findings were obtained in a paradigm that strongly interleaved what we considered the task prime (i.e., the particular creativity task) and the induction of the VHI—the process we aimed to prime. The practical reason to do so was to increase the probability that the metacontrol state that the creativity tasks were hypothesized to induce or establish would be sufficiently close in time to the synchrony manipulation to have an impact on the thereby induced changes in self-perception. However, this implies that we are unable to disentangle the effects of the task prime proper and the effects of possible interactions between this task prime and the synchrony manipulation. There are indeed reasons to assume that such interactions are not unlikely to have occurred
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Max Planck Neuroscience on Nautilus: Understanding the Brain with the Help of Artificia... - 0 views
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Unfortunately, however, little is known about the wiring of the brain. This is due also to a problem of time: tracking down connections in collected data would require man-hours amounting to many lifetimes, as no computer has been able to identify the neural cell contacts reliably enough up to now. Scientists from the Max Planck Institute of Neurobiology in Martinsried plan to change this with the help of artificial intelligence.
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To be able to use this key, the connectome, that is every single neuron in the brain with its thousands of contacts and partner cells, must be mapped. Only a few years ago, the prospect of achieving this seemed unattainable.
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The Max Planck scientists led by Jörgen Kornfeld have now overcome this obstacle with the help of artificial neural networks. These algorithms can learn from examples and experience and make generalizations based on this knowledge.
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In Memoriam: Lewis H. Lapham (1935-2024), by Harper's Magazine - 0 views
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By drawing upon the authority of Montaigne, who begins his essay “Of Books” with what would be regarded on both Wall Street and Capitol Hill as a career-ending display of transparency:
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I have no doubt that I often speak of things which are better treated by the masters of the craft, and with more truth. This is simply a trial [essai] of my natural faculties, and not of my acquired ones. If anyone catches me in ignorance, he will score no triumph over me, since I can hardly be answerable to another for my reasonings, when I am not answerable for them to myself, and am never satisfied with them. . . .
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When I was thirty I assumed that by the time I was fifty I would know what I was talking about. The notice didn’t arrive in the mail. At fifty I knew less than what I thought I knew at thirty, and so I figured that by the time I was seventy, then surely, this being America, where all the stories supposedly end in the key of C major, I would have come up with a reason to believe that I had been made wise. Now I’m seventy-five, and I see no sign of a dog with a bird in its mouth.
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Thomas Kuhn: Revolution Against Scientific Realism* - 1 views
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as such a complex system that nobody believed that it corresponded to the physical reality of the universe. Although the Ptolemaic system accounted for observations-"saved the appearances"-its epicycles and deferents were never intended be anything more than a mathematical model to use in predicting the position of heavenly bodies. [3]
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lileo that he was free to continue his work with Copernican theory if he agreed that the theory did not describe physical reality but was merely one of the many potential mathematical models. [10] Galileo continued to work, and while he "formally (23)claimed to prove nothing," [11] he passed his mathematical advances and his observational data to Newton, who would not only invent a new mathematics but would solve the remaining problems posed by Copernicus. [12]
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Thus without pretending that his method could find the underlying causes of things such as gravity, Newton believed that his method produced theory, based upon empirical evidence, that was a close approximation of physical reality.
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