P30: Effects of Cognitive Stimulation Combined with Transcranial Direct Current Stimulation on Cognitive Performance and Cortical Excitability in Amnestic Mild Cognitive Impairment

Introduction: Transcranial Direct current stimulation (tDCS) and repetitive transcranial magnetic stimulation (rTMS) are neuromodulatory techniques capable of modifying the altered cerebral hyperexcitability in amnestic mild cognitive impairment (aMCI). Cortical excitability can be estimated with motor evoked potentials (MEPs) and synaptic plasticity can be induced with a 5 Hz rTMS paradigm applied to the motor cortex (M1). An increase in MEP amplitude reflects a better capacity for plasticity in M1, and these measures can, in turn, be associated with cognitive performance.