Scientists explore where consciousness arises in the brain
By Will Dunham
WASHINGTON (Reuters) -Consciousness in the midst of human existence, the ability to see, hear, dream, imagine, feel pain or pleasure, fear, love and more. But where is this accurately evaluated in the brain? This is the question that has confused scientists and doctors for a long time. A new study provides a new vision.
In the pursuit of awareness -supporting brain parts, neuroscientists measured electric and magnetic activity as well as blood flow in the brains of 256 people in 12 laboratories throughout the United States, Europe and China, while the participants saw various pictures. Activity measurements follow in different parts of the brain.
The researchers found that awareness may not arise in the “smart” part of the brain – the front areas where there is thinking, which gradually grew in the process of human development – but in the sensory areas in the back of the brain that treats sight and sound.
“Why is any of this important?” Neuroscientist Christophe Koch asked the Allen Institute in Seattle, one of the study leaders published this week in the journal Nature.
“If we want to understand the pillar of consciousness, which he has – adults, linguistic children, and the second fruit, dog, mouse, squid, crow, fly – we need to define basic mechanisms in the brain, whether for conceptual causes or for clinical reasons,” Koch said.
Topics in the study were presented on pictures of different people and things.
“Consciousness is the way to see a drawing of a toast or a generation. Awareness is not the same behavior associated with this feeling, for example, pushing a button or saying,” I see a generation. “
The researchers tested two main scientific theories on consciousness.
In light of the theory of global cellular action, awareness is achieved at the front of the brain, where important parts of information are broadcast widely throughout the brain. Under the theory of integrated information, consciousness stems from the interaction and cooperation of different parts of the brain because it works collectively to integrate the information that is consciously experienced.
The results were not with any theory.
Where are the effects of nervous feet of awareness in the brain?
This frontal cortex that makes our race human unique, leads to high -order cognitive processes such as planning, decision -making, thinking, expression of personality, and moderate social behavior.
“Or are the effects of feet in the back areas of the shell, the back shell?” He asked a hut. The back shell includes areas where hearing and vision processing occurs.
“Here, the evidence certainly supports the back shell. Either information related to the conscious experience on the front can be found or much weaker than it was in the back. This supports the idea that although the front lobes are very important, judgment, logic, etc., they do not participate critically in the conscious visual perception,” Coach said.
However, the study did not specify adequate links that continue as long as the conscious experience in the back of the brain to support integrated information theory.
There are practical applications in acquiring a deeper understanding of the brain’s awareness mechanics.
Koch said it would be important for how doctors deal with patients in a coma or patients in a vegetarian condition or with vigilance that does not respond, when they are awake but they do not represent any signs of awareness due to the brain injury, stroke, cardiac arrest or an overdose of the drug.
Koch said: “If the patient remains in this case that is not responsive for a period longer than a few days without signs of recovery, then the clinical team begins a discussion with the family, is this what they wanted?”
Of these patients, 70 % dies to 90 % because a decision has been taken to withdraw the life that carries life.
In reference to the research published last year in the Journal of Medicine in New England in the Journal of Medicine in New England in the Journal of Medicine in New England in the Journal of Medicine in New England, “However, we now know that about a quarter of patients in coma or unexplained vigilance syndrome.” Knowing the effects of the feet of awareness in the brain will allow us to discover this secret form of “existence” without being able to Reference.
(Will Doneham’s reports, edited by Rosalba Operation) participated