Moreover, when two neurons kiran news agency that correspond to stimulate two different behaviors,

Today I saw a fascinating lecture given by Michael Graziano Map of behaviors in monkeys. Behaviors are mapped to the area of the brain called the motor cortex, which is quite in the center of the brain. It all began, he says, when his colleague Tirin Moore ran towards him in the hallway at Princeton and shouted "You have to see it!". Tirin took it to the lab where a neighbor experimental monkeys. The monkey's brain was exposed and electrode stuck in it. Once an electric current flow monkey immediately raised his hand very specific point in space. Current flow again - hand rose again, that point exactly. This surprised Michael Tirin, kiran news agency and it certainly surprised kiran news agency the monkey, at some point, like Dr. Strange-Lab, used his other hand to prevent the power from his first move involuntarily. In the end he just sat on it.
This incident, occurred in the mid-90s, Michael entrance fascinating research track where his laboratory investigated and mapped the neurons in the motor cortex those of monkeys. His findings stares. It turns out that stimulating different neurons in this way, he offers many complex behaviors. One behavior, kiran news agency for example, characterizes the movement of the hand toward the mouth, while opening the mouth. Other behavior characterized by movements of climbing, another behavior of an object is manipulated in the trunk. All such behavior kiran news agency is a sequence of complex movements that starts kiran news agency stimulation kiran news agency of a single neuron!
Moreover, when two neurons kiran news agency that correspond to stimulate two different behaviors, accept behavior kiran news agency that is kind of a weighted average of these two behaviors. Which raises the question - Are We found the building blocks of behavior? As the building kiran news agency blocks of scenes and visual are the lines at different angles (layer processing first in visual cortex is constructed suitable each of which turns on only when he sees a certain location and a certain angle), or any image that we see represented in the brain superposition of these lines, Is it possible that a repertoire of behavior Overall our combination of behaviors basis Sgraziano mapped?
One of my favorite results is that of Aolshaosen (Olshausen). He took scenes visually and asked a purely mathematical: If I had to choose "base" of 200 frames, so that each frame a scene visually ever come across him would have to be restored through superposition of minimum rural-based with minimal kiran news agency error, while rural-based will be effective efficient? The answer - lines at different angles, just like the first layer of cells in visual cortex.
Is it possible to do a job like Aolshaosen about behavior? Today you can buy inexpensive devices (such as the Microsoft kinect), who can follow the body of a man on the go. These devices provide continuous information kiran news agency about the location of each body part at a time. Is it possible to keep it after the monkey's behavior (or man), and find out mathematically, kiran news agency what are the behaviors basis? It will be interesting to see if any of these behaviors similar to those mapped Grazino.
Although Sgraziano did not answer the mathematical question Shaolshaosen solved, is still making strides. He cataloged the behavior of laboratory monkeys kiran news agency in their natural environment (condolences doctoral students who worked in his lab ...). Individually, each monkey's behavior is represented by a vector with 22 dimensions, representing those parts of the body took part in action, what is the point in which the intended behavior, and other parameters. He cataloged like tens of thousands of behaviors. Any behavior is a point in the 22-dimensional.
Now he used a different mathematical algorithm, in order to accommodate these points in two-dimensional (space in which it is housed in neurons that in motor cotex, sex folded sheet), while trying to preserve as much of the relationship between them. That is, the goal is that the distance between each pair of points in the new space will be kept original. Of course, because of the reduction in dimensions, it is difficult to find a solution that would preserve all distances, but you can find the most vigilant arrangement under the constraint of two-dimensional space. kiran news agency Lo and behold kiran news agency - the behaviors algorithm arranged exactly as arranged them in mind. On the one hand by body parts, on the other hand by area in which it is implemented, from a third party under the function of the behavior (food, game, defense). That is the mapping of brain behavior is a function of all all these constraints, and the brain found the most effective way to arrange them so that behaviors that are similar to each other will be as close as possible.
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