Skip to main content

Home/ Psychology: The Science Of Human Nature/ Group items tagged consciousness

Rss Feed Group items tagged

thinkahol *

TEDxRheinMain - Prof. Dr. Thomas Metzinger - The Ego Tunnel - YouTube - 0 views

  •  
    Brain, bodily awareness, and the emergence of a conscious self: these entities and their relations are explored by Germanphilosopher and cognitive scientist Metzinger. Extensively working with neuroscientists he has come to the conclusion that, in fact, there is no such thing as a "self" -- that a "self" is simply the content of a model created by our brain - part of a virtual reality we create for ourselves. But if the self is not "real," he asks, why and how did it evolve? How does the brain construct the self? In a series of fascinating virtual reality experiments, Metzinger and his colleagues have attempted to create so-called "out-of-body experiences" in the lab, in order to explore these questions. As a philosopher, he offers a discussion of many of the latest results in robotics, neuroscience, dream and meditation research, and argues that the brain is much more powerful than we have ever imagined. He shows us, for example, that we now have the first machines that have developed an inner image of their own body -- and actually use this model to create intelligent behavior. In addition, studies exploring the connections between phantom limbs and the brain have shown us that even people born without arms or legs sometimes experience a sensation that they do in fact have limbs that are not there. Experiments like the "rubber-hand illusion" demonstrate how we can experience a fake hand as part of our self and even feel a sensation of touch on the phantom hand form the basis and testing ground for the idea that what we have called the "self" in the past is just the content of a transparent self-model in our brains. Now, as new ways of manipulating the conscious mind-brain appear on the scene, it will soon become possible to alter our subjective reality in an unprecedented manner. The cultural consequences of this, Metzinger claims, may be immense: we will need a new approach to ethics, and we will be forced to think about ourselves in a fundamentally new way. At
thinkahol *

The Biology of Consciousness | WBUR and NPR - On Point with Tom Ashbrook - 0 views

  •  
    "Renegade husband and wife philosophers Pat and Paul Churchland met forty years ago in a college Plato class. Their instincts as philosophers - then and now - run outside the philosophy mainstream. Where most philosophers looked to reason and logic to apprehend the human mind, the Churchlands looked - and look - to science. There is no independent "mind", these two practically say, just the human brain, three pounds of tissue and water, firing away behind all our emotions, beliefs, actions. Consciousness itself, they say, is straight biology, a machine. Once, that sounded esoteric. Now, it's on the frontline of debate over law, soul and life."
Amira .

You are not a self! Bodies, brains and the nature of consciousness by prof Thomas Metzi... - 1 views

  •  
    German philosopher of mind Thomas Metzinger is one of the world's top researchers on consciousness, instrumental in its renaissance as a respectable problem for scientific enquiry. From out-of-body experiences to lucid dreaming, anarchic hand syndrome to phantom limbs, his investigations have taken him to places few dare to go. Be spooked, bewildered and amazed.
thinkahol *

The Blog : Drugs and the Meaning of Life : Sam Harris - 1 views

  •  
    Everything we do is for the purpose of altering consciousness. We form friendships so that we can feel certain emotions, like love, and avoid others, like loneliness. We eat specific foods to enjoy their fleeting presence on our tongues. We read for the pleasure of thinking another person's thoughts. Every waking moment-and even in our dreams-we struggle to direct the flow of sensation, emotion, and cognition toward states of consciousness that we value.Drugs are another means toward this end. Some are illegal; some are stigmatized; some are dangerous-though, perversely, these sets only partially intersect. There are drugs of extraordinary power and utility, like psilocybin (the active compound in "magic mushrooms") and lysergic acid diethylamide (LSD), which pose no apparent risk of addiction and are physically well-tolerated, and yet one can still be sent to prison for their use-while drugs like tobacco and alcohol, which have ruined countless lives, are enjoyed ad libitum in almost every society on earth. There are other points on this continuum-3,4-methylenedioxymethamphetamine (MDMA or "Ecstasy") has remarkable therapeutic potential, but it is also susceptible to abuse, and it appears to be neurotoxic.[1]One of the great responsibilities we have as a society is to educate ourselves, along with the next generation, about which substances are worth ingesting, and for what purpose, and which are not. The problem, however, is that we refer to all biologically active compounds by a single term-"drugs"-and this makes it nearly impossible to have an intelligent discussion about the psychological, medical, ethical, and legal issues surrounding their use. The poverty of our language has been only slightly eased by the introduction of terms like "psychedelics" to differentiate certain visionary compounds, which can produce extraordinary states of ecstasy and insight, from "narcotics" and other classic agents of stupefaction and abuse.
Maxime Lagacé

Level 3 of consciousness by Richard Brodie - 4 views

  •  
    Richard Brodie's essay describing the origins and evolution of consciousness. Level 1 - people are not aware - Level 2 - people understand - Level 3 - people understand, act and add value
franstassigny

J.Lacan and Zen ( Fr - Angl ) - 0 views

  •  
    What is psychoanalysis, I asked someone who was hostile? Not teach it not to distinguish conscious from unconscious? - Yes, I replied. So, he concludes, it is a truism as stupid as the others, such as "when one is not great is that we are small." Can we say that the thought is not equal to the reflected consciousness is equal to the unconscious? -
Sue Frantz

Dichotomistic logic - the 10% myth - 0 views

  •  
    It is a well known "fact" that we use just 10 percent of our brains. This is why creativity gurus are always urging us to learn to tap the other silent 90 percent. It has also been a staple point for those who want to argue that consciousness has little to do with brain circuitry and more to do with some intangible soul-stuff. So where did this particular old wives' tale spring from? Well, there are at least three famous bits of neuroscientific research that have fed the myth. And here are the modern countering arguments.
thinkahol *

How to size up the people in your life - opinion - 15 August 2011 - New Scientist - 0 views

  •  
    Why are we all so different? Here is a toolkit for finding out what people are really like IN THE 4th century BC, the Greek philosopher Theophrastus, Aristotle's student and successor, wrote a book about personality. The project was motivated by his interest in what he considered a very puzzling question: "Why it has come about that, albeit the whole of Greece lies in the same clime, and all Greeks have a like upbringing, we have not the same constitution of character?" Not knowing how to get at the answer, Theophrastus decided to instead focus on categorising those seemingly mysterious differences in personality. The result was a book of descriptions of personality types to which he assigned names such as The Suspicious, The Fearful and The Proud. The book made such an impression that it was passed down through the ages, and is still available online today as The Characters of Theophrastus. The two big questions about personality that so interested Theophrastus are the same ones we ask ourselves about the people we know: why do we have different personalities? And what is the best way to describe them? In the past few decades, researchers have been gradually answering these questions, and in my new book, Making Sense of People: Decoding the mysteries of personality, I take a look at some of these answers. When it comes to the origins of personality, we have learned a lot. We now know that personality traits are greatly influenced by the interactions between the set of gene variants that we happen to have been born with and the social environment we happen to grow up in. The gene variants that a person inherits favour certain behavioural tendencies, such as assertiveness or cautiousness, while their environmental circumstances influence the forms these innate behavioural tendencies take. The ongoing dialogue between the person's genome and environment gradually establishes the enduring ways of thinking and feeling that are the building blocks of personality. This de
Hypnosis Training Academy

Breakthrough Stanford Research: Hypnotic Trance Changes Brain Activity - 0 views

  •  
    A groundbreaking Stanford Study lead by Dr. David Spiegel has revealed what hypnotists have long known about brain activity whilst under a hypnotic trance. That is: some parts of the brain function differently under hypnosis than during normal consciousness. In essence, hypnosis indeed alters brain patterns and activity. These findings might help explain the intense absorption, lack of self-consciousness and suggestibility that characterize the hypnotic state. Would you like to discover more about Dr. David Spiegel hypnosis research findings and how you can use hypnosis to control pain and increase someone's self-esteem? Check out the latest article on HypnosisTrainingAcademy.com now…..
anonymous

Scientists Discover What Our Brain Is Doing When We Become Aware That We Are Dreaming |... - 0 views

  •  
    A team of researchers in Germany have discovered the source of human awareness in the brain through the analysis of dreams.
nat bas

Understanding the Anxious Mind - NYTimes.com - 0 views

  • But some people, no matter how robust their stock portfolios or how healthy their children, are always mentally preparing for doom. They are just born worriers, their brains forever anticipating the dropping of some dreaded other shoe. For the past 20 years, Kagan and his colleagues have been following hundreds of such people, beginning in infancy, to see what happens to those who start out primed to fret. Now that these infants are young adults, the studies are yielding new information about the anxious brain.
  • Four significant long-term longitudinal studies are now under way: two at Harvard that Kagan initiated, two more at the University of Maryland under the direction of Nathan Fox, a former graduate student of Kagan’s. With slight variations, they all have reached similar conclusions: that babies differ according to inborn temperament; that 15 to 20 percent of them will react strongly to novel people or situations; and that strongly reactive babies are more likely to grow up to be anxious.
  • In the brain, these thoughts can often be traced to overreactivity in the amygdala, a small site in the middle of the brain that, among its many other functions, responds to novelty and threat. When the amygdala works as it should, it orchestrates a physiological response to changes in the environment. That response includes heightened memory for emotional experiences and the familiar chest pounding of fight or flight. But in people born with a particular brain circuitry, the kind seen in Kagan’s high-reactive study subjects, the amygdala is hyperreactive, prickly as a haywire motion-detector light that turns on when nothing’s moving but the rain. Other physiological changes exist in children with this temperament, many of them also related to hyperreactivity in the amygdala. They have a tendency to more activity in the right hemisphere, the half of the brain associated with negative mood and anxiety; greater increases in heart rate and pupil dilation in response to stress; and on occasion higher levels of the stress hormones cortisol and norepinephrine.
  • ...8 more annotations...
  • The physiological measurements led them to believe something biological was at work. Their hypothesis: the inhibited children were “born with a lower threshold” for arousal of various brain regions, in particular the amygdala, the hypothalamus and the hypothalamic-pituitary-adrenal axis, the circuit responsible for the stress hormone cortisol.
  • At age 4, children who had been high-reactive were four times as likely to be behaviorally inhibited as those who had been low-reactive. By age 7, almost half of the jittery babies had developed symptoms of anxiety — fear of thunder or dogs or darkness, extreme shyness in the classroom or playground — compared with just 10 percent of the more easygoing ones. About one in five of the high-reactive babies were consistently inhibited and fearful at every visit up to the age of 7.
  • By adolescence, the rate of anxiety in Kagan’s study subjects declined overall, including in the high-risk group. At 15, about two-thirds of those who had been high-reactors in infancy behaved pretty much like everybody else.
  • PEOPLE WITH A nervous temperament don’t usually get off so easily, Kagan and his colleagues have found. There exists a kind of sub-rosa anxiety, a secret stash of worries that continue to plague a subset of high-reactive people no matter how well they function outwardly. They cannot quite outrun their own natures: consciously or unconsciously, they remain the same uneasy people they were when they were little.
  • Teenagers who were in the group at low risk for anxiety showed no increase in activity in the amygdala when they looked at the face, even if they had been told to focus on their own fear. But those in the high-risk group showed increased activity in the amygdala when they were thinking about their own feelings (though not when they were thinking about the nose). Once again, this pattern was seen in anxiety-prone youngsters quite apart from whether they had problems with anxiety in their daily lives. In the high-risk kids, even those who were apparently calm in most settings, their amygdalas lighted up more than the others’ did.
  • Behaviorally inhibited children were much more likely to have older siblings: two-thirds of them did, compared with just one-third of the uninhibited children. Could having older siblings, he and his co-authors wondered, mean being teased and pushed, which becomes a source of chronic stress, which in turn amplifies a biological predisposition to inhibition?
  • high-reactive babies who went to day care when they were young were significantly less fearful at age 4 than were the high-reactives who stayed home with their mothers.
  • The predictive power of an anxiety-prone temperament, such as it is, essentially works in just one direction: not by predicting what these children will become but by predicting what they will not. In the longitudinal studies of anxiety, all you can say with confidence is that the high-reactive infants will not grow up to be exuberant, outgoing, bubbly or bold. Still, while a Sylvia Plath almost certainly won’t grow up to be a Bill Clinton, she can either grow up to be anxious and suicidal, or simply a poet. Temperament is important, but life intervenes.
  •  
    This is a good article that looks at how anxiety happens- it is more or less something you are born with, but you learn to live with, if you are intelligent about it. Liked it. Good writing.
Art McConnell

In the Flow | Spreading Higher Education - 0 views

  •  
    The Wisdom of Carrie
1 - 13 of 13
Showing 20 items per page