Important target for interventions ranging from prevention and rehabilitation of specific deficits in the treatment of emotional disorders. The tic’s (Trans cranial direct current stimulation) could be an important resource in this path, having regard to its modulation of cortical excitability cogniflex capacity in the absence of significant side effects. TDCS and its mechanisms TDCS, born in Italy and now used worldwide, is an easy technical application with which it is possible to stimulate different parts of the brain in a non-invasive, cogniflex effective, painless and without significant side effects (the most frequently encountered perceptions are slight tingling / itching / heat at the beginning of the stimulation at the points where the electrodes) are positioned. Although it is a technique "young", several studies indicate as a valuable tool as possible for treatment of neuropsychiatric conditions such as depression, anxiety, Parkinson's disease, Alzheimer's dementia, chronic pain, addictions, rehabilitation after stroke or trauma. TDCS allows two types of stimulations: anode and cathode. The anodal stimulation causes an excitation of neuronal activity and that of the cathode inhibits or reduces it. The tic’s stimulation consists in a weak electric current of constant intensity 1-2 mA, not perceptible by the person, which is.

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