The neuronal information is formed by 2 waves: electronic and ionic, which enter the neuron at the level of the excited synapses. The neurofilaments lead to the transmission of the electronic wave, while the microtubules direct the ionic wave. Arriving at the level of the nuclear membrane, the electronic wave of excitation enters the system DNA-histones, which works as a computer. The electronic wave is retransmited to a bundle of neurofilaments, then it is carried to a certain collateral of the axon. In its movement, the electronic wave guides the ionic wave toward certain synapses, so that the specific connections between the input and the output signals are assured.