News tagged with consciousness
Face the facts: Neural integration transforms unconscious face detection into conscious face perception
(Medical Xpress)—The apparent ease and immediacy of human perception is deceptive, requiring highly complex neural operations to determine the category of objects in a visual scene. Nevertheless, the human ...
Neuroscience Dec 31, 2012 | 4.8 / 5 (9) | 0 |
UCSF scientists controlled seizures in epileptic mice with a one-time transplantation of medial ganglionic eminence (MGE) cells, which inhibit signaling in overactive nerve circuits, into the hippocampus, a brain region associated ...
Neuroscience May 05, 2013 | 4.5 / 5 (14) | 2 |
Since the mid-1800s, doctors have used drugs to induce general anesthesia in patients undergoing surgery. Despite their widespread use, little is known about how these drugs create such a profound loss of ...
Neuroscience Mar 04, 2013 | 4.9 / 5 (8) | 0 |
(Medical Xpress)—Researchers at Hebrew University in Jerusalem have found that contrary to popular thinking, people are capable of reading sentences and solving math problems without consciously thinking ...
Psychology & Psychiatry Nov 13, 2012 | 3.6 / 5 (10) | 4 |
Investigators at Massachusetts General Hospital (MGH) and Massachusetts Institute of Technology (MIT) have identified for the first time a pattern of brain activity that appears to signal exactly when patients ...
Neuroscience Nov 05, 2012 | 4.9 / 5 (7) | 2 |
With the discovery that the unconscious mind plays a key role in the placebo effect, researchers have identified a novel mechanism that helps explain the power of placebos and nocebos.
Medical research Sep 10, 2012 | 5 / 5 (4) | 1
(HealthDay) -- Researchers report that they have created a device able to short-circuit epileptic seizures in rats.
Neuroscience Aug 09, 2012 | 5 / 5 (1) | 0 |
(Medical Xpress) -- Researchers in the US have discovered that hearing gossip about a person literally changes the way you see them, and hearing negative information about people makes their faces stand out.
Psychology & Psychiatry May 20, 2011 | 3.6 / 5 (7) | 3 |
When faced with a difficult decision, it is often suggested to "sleep on it" or take a break from thinking about the decision in order to gain clarity.
Neuroscience Feb 13, 2013 | 5 / 5 (5) | 0 |
(Medical Xpress)—A team of researchers in France has found what they call a "signal" that tells a person when to rest while engaging in work, and then when to resume once rested. The team, as they describe ...
Neuroscience Jan 22, 2013 | 5 / 5 (2) | 0 |
The pilot and autopilot within our mind-brain connection: Conscious vs. unconscious, habit vs. non-habit examined
(Medical Xpress)—Have you ever driven to work so deep in thought that you arrive safely yet can't recall the drive itself? And if so, what part of "you" was detecting cars and pedestrians, making appropriate stops and ...
Neuroscience Jan 11, 2013 | 4.8 / 5 (4) | 2 |
(HealthDay)—Older adults with a history of traumatic brain injury (TBI) with loss of consciousness (LOC) have a 2.5- to almost four-fold higher risk of subsequent re-injury later in life, according to research ...
Neuroscience Jan 03, 2013 | 5 / 5 (2) | 0 |
Researchers at Karolinska Institutet in Sweden have managed to graft beta cells into the eyes of mice in order to study them in a living organism over a prolonged period of time. As a result, the group and a team of colleagues ...
Medical research Dec 10, 2012 | 5 / 5 (1) | 0 |
Where the nonspecific thalamus meets the prefrontal cortex: First measurements made of key brain links
Inside the brains of mice and men alike, a relatively big football-shaped region called the thalamus acts like a switchboard, providing the prefrontal cortex, the part that does abstract thinking and decision-making, with ...
Neuroscience Dec 04, 2012 | 5 / 5 (1) | 1 |
(Medical Xpress)—Doctors in Canada claim they have opened a communication channel, using fMRI, with a man assumed to be in a vegetative state for over twelve years. By asking the patient to envision two ...
Neuroscience Nov 14, 2012 | 4.7 / 5 (17) | 7 |
Consciousness is a term that refers to the relationship between the mind and the world with which it interacts. It has been defined as: subjectivity, awareness, the ability to experience or to feel, wakefulness, having a sense of selfhood, and the executive control system of the mind. Despite the difficulty in definition, many philosophers believe that there is a broadly shared underlying intuition about what consciousness is. As Max Velmans and Susan Schneider wrote in The Blackwell Companion to Consciousness: "Anything that we are aware of at a given moment forms part of our consciousness, making conscious experience at once the most familiar and most mysterious aspect of our lives."
Philosophers since the time of Descartes and Locke have struggled to comprehend the nature of consciousness and pin down its essential properties. Issues of concern in the philosophy of consciousness include whether the concept is fundamentally valid; whether consciousness can ever be explained mechanistically; whether non-human consciousness exists and if so how it can be recognized; how consciousness relates to language; and whether it may ever be possible for computers or robots to be conscious. Perhaps the thorniest issue is whether consciousness can be understood in a way that does not require a dualistic distinction between mental and physical states or properties.
At one time consciousness was viewed with skepticism by many scientists, but in recent years it has become a significant topic of research in psychology and neuroscience. The primary focus is on understanding what it means biologically and psychologically for information to be present in consciousness—that is, on determining the neural and psychological correlates of consciousness. The majority of experimental studies assess consciousness by asking human subjects for a verbal report of their experiences (e.g., "tell me if you notice anything when I do this"). Issues of interest include phenomena such as subliminal perception, blindsight, denial of impairment, and altered states of consciousness produced by psychoactive drugs or spiritual or meditative techniques.
In medicine, consciousness is assessed by observing a patient's arousal and responsiveness, and can be seen as a continuum of states ranging from full alertness and comprehension, through disorientation, delirium, loss of meaningful communication, and finally loss of movement in response to painful stimuli. Issues of practical concern include how the presence of consciousness can be assessed in severely ill, comatose, or anesthetized people, and how to treat conditions in which consciousness is impaired or disrupted.
For more information about Consciousness, read the full article at
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