Groundbreaking study finds ten times more activity than expected
- Study on dendrites found that they are not passive conduits as typically believe
- Instead, these components of the neurons are electrically active in the movement of animals
- The brain was found to be 10 times more active than we thought
- Large volume of dendrites means brain could be 100 x computing capacity
In a recent study on the component of neurons are known as dendrites, researchers found that they are not passive conduits, such as is usually believed, but rather the electrically active moving animals.
Not only can this mean that the brain has more than 100 times the computing capacity than has been believed, but the discovery also could pave the way for the development of ' brain-like computer. '
In a recent study on the component of neurons are known as dendrites, researchers found that they are not passive conduits, such as is usually believed, but rather the electrically active moving animals
HOW THEY DID IT
The researchers measured the dendrites ' activities during four days in rats that were allowed to move freely in the great maze.They measured the activity of the posterior parietal cortex, in which play a key role in the planning.
This reveals that there are a lot more activity in dendrites than at somas.
While the rats slept, it accounted for about five times as much as the nail-and while they explore, up to 10 times the somas.
Dendrites are nearly 100 times larger volume of nerve centers, according to Mehta, which means that a large number of nails from this feature shows the brain has 100 times the computing capacity than scientists previously thought.
This makes the branches of neurons and is derived from the body, or soma.
To communicate, somas produces brief electrical pulses called ' Spike', and was long considered that the nail is in the back of the dendrites, activation of passively sending current to the other somas.
However, in the new study, researchers found that this did not happen.
In non-moving animals, they found that electrically active dendrites, and produces 10 times more spikes than somas.
' Dendrites make more than 90 percent of neural networks, ' said UCLA neurophysicist Mayank Mehta, senior author of the study.
' Knowing they are much more active than a fundamental change in the nature of soma of our understanding of how the brain computes information.
' It might open the way to understand and treat neurological disorders, and to develop the brain-like computer. '
According to the researchers, the dendrites are actually able to run the hybrid analog and digital calculations.
Not only could this mean that the brain has over 100 times the computational capacity than it’s been believed, but the discovery could also pave the way for the development of ‘brain-like computers’This means they are fundamentally different from pure digital computer, but similar to the quantum analog computer, explains Mehta.
' Underlying belief in neuroscience neurons that have digital devices.They both generate a spike or not.
'These results showed that dendrites do not behave like a pure digital device. Dendrites produces nails digital, all-or-none, but they also show large fluctuations of analog is not all or nothing.
' This is leaving what neuroscientist believe for about 60 years.
Dendrites are nearly 100 times larger volume of nerve centers, according to Mehta, which means that a large number of nails from this feature shows the brain has 100 times the computing capacity than scientists previously thought.
While other studies have found that dendrites can produce spikes, researchers are not sure if it could occur during natural behavior, or how often this happens.
To find out, the researchers measured the dendrites ' activities during four days in rats that were allowed to move freely in the great maze.
They measured the activity of the posterior parietal cortex, in which play a key role in the planning.
This reveals that there are a lot more activity in dendrites than at somas.
While the rats slept, it accounted for about five times as much as the nail-and while they explore, up to 10 times the somas.
' Many earlier models assume that learning occurs when the body's cells two neurons are active at the same time, ' said Jason Moore, a postdoctoral researcher, UCLA and the first author of the study.
' Our findings show that learning may occur when the input neurons are active at the same time the active Dendrite-and it could be that the different parts of the dendrites will be active at different times, which would show more flexibility in how learning can occur in a single neuron. '
The Researchers say new insight this could change our understanding of how the brain works, shows that it is not only the cells of the body that makes all the decisions.
' What we found suggests that the decision was made far more often than dendrites in the cells of the body, and that such calculations are not only digital, but also analog, ' said Mehta.
Due to technology difficulties, research in brain function has largely focused on the body's cells.
' But we have discovered the secret of life of neurons, especially in nerve branches.
' Our results substantially change our understanding of how the neurons compute.
CREATIVE PEOPLE HAVE BETTER CONNECTED BRAINS, STUDY SAYS
They had specific tasks to be accomplished during the trial while being monitored.
This number includes the completion of the task, the geographic design of drawing for five minutes and a new list using the objects of everyday life.
Finally, participants must complete a questionnaire on their achievements in the areas of ten creative.
There is no difference in connectivity statistics in the parties or between men and women.
The team found that when they compared those who scored in the top 15 percent on tests for the less
than 15 percent, those in the topbracket shows the most important connection between the right andleft hemisphere.
And these differences is seen especially in the frontal lobe of the brain.
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