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anonymous

CAN MACHINES THINK? - TIME - 0 views

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    "Maybe such a crisis is in order. It isn't just that as these machines get more powerful they do more jobs once done only by people, from financial analysis to secretarial work to world-class chess playing. It's that, in the process, they seem to underscore the generally dispiriting drift of scientific inquiry. First Copernicus said we're not the center of the universe. Then Darwin said we're just protozoans with a long list of add-ons--mere "survival machines," as modern Darwinians put it. And machines don't have souls, right? Certainly Deep Blue hasn't mentioned having one. The better these seemingly soulless machines get at doing things people do, the more plausible it seems that we could be soulless machines too. But however logical this downbeat argument may sound, it doesn't appear to be prevailing among scholars who ponder such issues for a living. That isn't to say philosophers are suddenly resurrecting the idea of a distinct, immaterial soul that governs the body for a lifetime and then drifts off to its reward. They're philosophers, not theologians. When talking about some conceivably nonphysical property of human beings, they talk not about "souls" but about "consciousness" and "mind." The point is simply that as the information age advances and computers get brainier, philosophers are taking the ethereal existence of mind, of consciousness, more seriously, not less. And one result is to leave the theologically inclined more room for spiritual speculation."
anonymous

The Benefits of Being Bilingual | Wired Science | Wired.com - 0 views

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    Samuel Beckett, born in a suburb of Dublin in 1906, was a native English speaker. However, in 1946 Beckett decided that he would begin writing exclusively in French. After composing the first draft in his second language, he would then translate these words back into English. This difficult constraint - forcing himself to consciously unpack his own sentences - led to a burst of genius, as many of Beckett's most famous works (Malloy, Malone Dies, Waiting for Godot, etc.) were written during this period. When asked why he wrote first in French, Beckett said it made it easier for him to "write without style." Beckett would later expand on these comments, noting that his use of French prevented him from slipping into his usual writerly habits, those crutches of style that snuck into his English prose. Instead of relying on the first word that leapt into consciousness - that most automatic of associations - he was forced by his second language to reflect on what he actually wanted to express. His diction became more intentional. There's now some neat experimental proof of this Beckettian strategy. In a recent paper published in Psychological Science, a team of psychologists led by Boaz Keysar at the University of Chicago found that forcing people to rely on a second language systematically reduced human biases, allowing the subjects to escape from the usual blind spots of cognition. In a sense, they were better able to think without style. The paper is a tour de force of cross-cultural comparison, as the scientists conducted six experiments on three continents (n > 600) in five different languages: English, Korean, French, Spanish and Japanese. Although all subjects were proficient in their second language, they were not "balanced bilingual." The experiments themselves relied on classic paradigms borrowed from prospect theory, in which people are asked to make decisions under varying conditions of uncertainty and risk. For instance, native English
anonymous

Brain Scanners Can See Your Decisions Before You Make Them - 0 views

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    "You may think you decided to read this story -- but in fact, your brain made the decision long before you knew about it. In a study published Sunday in Nature Neuroscience, researchers using brain scanners could predict people's decisions seven seconds before the test subjects were even aware of making them. The decision studied -- whether to hit a button with one's left or right hand -- may not be representative of complicated choices that are more integrally tied to our sense of self-direction. Regardless, the findings raise profound questions about the nature of self and autonomy: How free is our will? Is conscious choice just an illusion? "Your decisions are strongly prepared by brain activity. By the time consciousness kicks in, most of the work has already been done," said study co-author John-Dylan Haynes, a Max Planck Institute neuroscientist. Haynes updated a classic experiment by the late Benjamin Libet, who showed that a brain region involved in coordinating motor activity fired a fraction of a second before test subjects chose to push a button. Later studies supported Libet's theory that subconscious activity preceded and determined conscious choice -- but none found such a vast gap between a decision and the experience of making it as Haynes' study has. In the seven seconds before Haynes' test subjects chose to push a button, activity shifted in their frontopolar cortex, a brain region associated with high-level planning. Soon afterwards, activity moved to the parietal cortex, a region of sensory integration. Haynes' team monitored these shifting neural patterns using a functional MRI machine. Taken together, the patterns consistently predicted whether test subjects eventually pushed a button with their left or right hand -- a choice that, to them, felt like the outcome of conscious deliberation. For those accustomed to thinking of themselves as having free will, the implications are far more unsettling than learning about the physiological basis
anonymous

TIME REPORTS: UNDERSTANDING PSYCHOLOGY - 0 views

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    "As neurologists, psychologists and biologists have zeroed in more and more precisely on the physical causes of mental disorders, they have found themselves addressing a much deeper mystery, a set of interrelated conundrums probably as old as humanity: What, precisely, is the mind, the elusive entity where intelligence, decision making, perception, awareness and sense of self reside? Where is it located? How does it work? Does it arise from purely physical processes-pulses of electricity zapping from brain cell to brain cell, helped along their way by myriad complex chemicals? Or is it something beyond the merely physical-something ethereal that might be close to the spiritual concept of the soul? Great thinkers have had no shortage of ideas on the subject. Plato was convinced that the mind must be located inside the head, because the head is shaped more or less like a sphere, his idea of the highest geometrical form. Aristotle insisted that the mind was in the heart. His reasoning: warmth implies vitality; the blood is warm; the heart pumps the blood. By the Middle Ages, though, pretty much everyone agreed that the mind arose from the brain -- but still had no clear idea how it arose. Finally, in the 17th century, the French philosopher Rena Descartes declared that the mind, while it might live in the brain, was a nonmaterial thing, entirely separate from the physical tissues found inside the head. Furthermore, said Descartes in one of history's most memorable sound bites, "Cogito, ergo sum" (I think, therefore I am). His point: consciousness is the only sure evidence that we actually exist. Until just a few years ago, unraveling the relationship of mind and brain was beyond the realm of observation and experimentation. But science has finally begun to catch up with philosophy. Using sensitive electrodes inserted deep into the gray matter of test animals, researchers have watched vision as it percolates inward from the eye's retina to the inner brain. Powerful te
anonymous

All In The Mind - ABC.AU - 0 views

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    We humans are such complex beasts. Why is it that we can be so wonderful and yet so awful, eccentric and prosaic, enigmatic and obvious, witty and dull, and all of these at once? All in the Mind, presented by Natasha Mitchell, is Radio National's weekly foray into all things mental - a program about the mind, brain and behaviour. From dreaming to depression, addiction to artificial intelligence, consciousness to coma, psychoanalysis to psychopathy, free will to forgetting - All in the Mind explores the human condition through the mind's eye. Our mental machinery remains one of the greatest mysteries of this or any other age, performing for us the most incredible feats of perception, cognition and coordination. Scientists, theologians, philosophers and armchair psychologists alike have long debated its form and function. And yet, the mind, in all its madness and brilliance, continues to elude us. All in the Mind brings together unexpected voices, themes and ideas and engages with both leading thinkers and personal stories. Psychology and human behaviour are only part of the equation. The program's scope is considerably broader and explores themes in science, religion, health, philosophy, education, history and pop culture, with the mind as the key focus.
anonymous

GLIMPSES OF THE MIND - TIME - 0 views

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    "Nothing is more morbidly intriguing, more chillingly compelling than an account of a malfunctioning mind, as medical writers have learned to their great profit. The victims of mental disease or brain damage are fascinating, not simply as exhibits in a neurological sideshow but also as stark demonstrations of how fragile reality can be. Most people agree, within limits, on the objective character of the world around them. Yet while the victims of mental disorders are certainly conscious and aware, their worlds are profoundly different from those of most of us. What can it possibly feel like, we wonder, to live without emotion, to be crippled without realizing it, to re-experience an event from the distant past complete with the fears that originally surrounded it? As neurologists, psychologists and biologists have zeroed in more and more precisely on the physical causes of mental disorders, they have found themselves addressing a much deeper mystery, a set of interrelated conundrums probably as old as humanity: What, precisely, is the mind, the elusive entity where intelligence, decision making, perception, awareness and sense of self reside? Where is it located? How does it work? Does it arise from purely physical processes-pulses of electricity zapping from brain cell to brain cell, helped along their way by myriad complex chemicals? Or is it something beyond the merely physical-something ethereal that might be close to the spiritual concept of the soul?"
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