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Details of The brain in the Chips

One small woven slice of of a ippocampo of rat (top) is cultivated on chip a semiconductor with 16.384 sensors transistor for square millimeter (center, squared dark color). After the excitation of the maps of chip the activity electrical worker of the neurons, caused from the activity of synapsis (red: positive, blue: negative).

Before that the information perceived from the brain of the mammals come allotted in the memory of along term, comes temporary memorizzata in the ippocampo. To comprise the function of the ippocampo is an important game of the process of memory and topic of the current a moment of search on the brain. Small slices of this cerebral region supply to material appropriating study of network the intact neurali of the ippocampo.

The methods commonly use you in the neurofisiologia are invaded to you, narrow to a small number of cells, or suffer from one limited resolution space them. The scientists of Martinsried have developed a not invasive system that allows of records of it the neurale communication within migliaia of nervous cells in the slices of woven cerebral with an elevated resolution spaces them.

This technology is involved thin slices like a shaver, of the region of ippocampo on Chips the semiconductors. These Chips come develop to you in collaboration with the Infineon Technologies AG, and turn out amazing for their density of the transistors of sensibility: 16384 transistors in an area of 1 square millimeter they record the neurale activity del brain.

To record is made of activity of the unified structures of the cells of an intact brain of a mammal represents a strong technological advance. Using the new technologies, the bioscienziati ones, under the direction of Peter Fromherz, they have been in a position to visualizing the infuence of the druggist members on a network neurale. This makes of the "chip-cerebral one" of Martinsried, one innovation in the test of the brain and the farmacologica search.

From the beginnings of 1991, Peter Fromherz and its collaborators, has had succeeded in every interfacciare single nervous fiber on chip a semiconductor. Susseguentemente to these searches we have had an increase of the bidirectional communication within Chips and small networks of some nervous cells of molluschi.

In this plan it has been possible to identify marks them within the cells via sinapsi. The Chips use you in these studies have been develop and produced to you from the same scientists. The production of the Chips, described over, has been made thanks to the several synergies of the industries specialized in the field of micro engineering. These synergies have given life to a new hybrid system of woven neurali and semiconductors, that it has allowed the scientists to make a great step in ahead in the within of the neurocomputeristica and the neurochips.