Neurophysiological effects of transcranial direct current stimulation (tDCS) have been extensively studied over the primary motor cortex (M1). Much less is however known about its effects over non-motor areas. such as the prefrontal cortex (PFC). which is the neuronal foundation for many high-level cognitive functions and involved in neuropsychiatric disorders. https://www.adventuresonabike.com/product-category/kit-occhi/