Abstract
Non invasive brain stimulation constitutes a promising tool for the development of new diagnostic and therapeutic approaches in neurological and psychiatric disorders. There are two non-invasive stimulation techniques available: Transcranial Magnetic Stimulation (TMS) and Transcranial Direct Current Stimulation (tDCS). The basic principles of these non-invasive techniques seem to operate by modulating the cerebral plasticity, through the regulation of neuronal impulse using magnetic stimulus (TMS) or by direct electrical stimulation (tDCS). If we consider the neuropsychiatric disorders such as an alteration of brain circuits, these techniques can be useful both in the neuromodulation and neural stimulation, since they could bring benefits in these patients. Although its use remains limited and the principles underlying its performance are not entirely known, there is enough evidence for its rational and safe use. This presentation reviews the essential differences of both technical, as well as their employment in different series of studies that demonstrates its application and effectiveness, based on diagnostic and therapeutic theoretical principles of non-invasive brain stimulation application, in order to provide evidence for the development of these techniques with new safe and affordable diagnostic approaches.
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