Although the data in literature are quite varied, there is agreement on the need to intervene on Neuro-Cognitive Disorders through cognitive rehabilitation that pivots around neuronal plasticity, as the basis of any structural and functional reorganization of the central nervous system.
The results of the studies concerning this neuro cognitive stimulation are very stimulating and have yielded positive results. Cognitive Rehabilitation Techniques are varied and in recent years techniques generically called Individualized Computerized Tasks have appeared. Very recently, non-invasive brain stimulation techniques such as transcranial Direct Current Stimulation (tDCS) are rapidly catching on. This is a non-invasive cortical stimulation procedure in which weak electrical currents (0.5 – 2 mA) are used to depolarize specific cortical areas. With the current from one electrode to the other, this technique modifies the neuron membrane potential by modulating the excitability of the cerebral cortex and hence the neuronal activity of the brain, by increasing or decreasing the functionality of the stimulated area, whilst the cathode stimulation hyper-polarizes neurons with inhibitory effects.