Scientists have adjusted the mouse brain, adding cells from the human body and as a result, the level of intelligence of modified rodents has increased dramatically. Neurons (the cells responsible for thought processes) has retained its natural character, but virtually all of glial cells support the neurons) has turned into a human (they make up about 40 percent of the volume of the brain). About these experiences neuroscientists presented on the pages of the journal of Neuroscience, and briefly about them tells New Scientist. Steve Goldman (Steve Goldman ) from the Medical center at the Rochester Institute drew immature neuroglial cells from donated to the University of embryos, and used them in the brain of mice. There the cells grew and transformed into astrocytes. Cells of this type play a major role in thinking: they strengthen connections between neurons ( synapses). Astrocytes person 10-20 times larger than a mouse, and have 100 times a large number of processes (ganglion) governing transmission of signals between the synapses. In about the year 300 thousand cells multiply to 12 million, displacing murine astrocytes to marginal areas. This strengthening of the "computing power" was not slow to affect the mental abilities of rodents: for example, they are 4 times more remembered about the relationship of a particular sound with a weak electric shock. At the moment, Goldman plans to enter the neuroglial cells of a person more intelligent laboratory rats. Scientists have already made the 1st injection and currently track the path of propagation of cells. Although the experiments of a scientist forced to remember the movie "Deep blue sea", where reasonable sharks are formed after the experiments in the fight against Alzheimer's disease, or about the story "Flowers for Algernon, whose hero (laboratory mouse) increases intellect due to surgery, Goldman insists that the new sections do not bring mice to Homo sapiens. "The introduction of neuroglial cells prevents them from almost any human capability. Our experience has simply increased the efficiency of neural networks of the animal. However the mouse still left mouse", - said the scientist. In addition, researchers have made a principled decision not to transplant human cells monkeys - primarily for ethical reasons.