The triple network model proposed by Menon et al. plays a major role in many psychiatric illnesses, including anxiety disorders, schizophrenia (SCZ), and autism spectrum disorder (ASD). The triple network model involves the interplay of activity between the Default Mode Network (DMN), which plays a role in mind wandering, creativity, and social cognitive processing, the Executive Control Network (ECN), which plays a role in working memory, decision making, and goal-directed behavior, and the Salience Network (SN), which is proposed to play a role in modulating the activity between these two networks. While research has explored the applications of the triple network model, the dynamics upon which these three networks interact is still relatively unknown. In this study, we will use transcranial Direct Current Stimulation (tDCS) aimed at the Posterior Cingulate Cortex (DMN), dorsolateral Prefrontal Cortex (ECN), and the Anterior Insula (AI) to modulate activity between the three networks. As part of the study, we will verify the stimulation of these networks with a modified version of the Multi-Source Interference Task (MSIT), incorporating a Stop Signal Task (SST) into the trials. We predict that stimulation of the DMN would result in a decrease in performance at the MSIT, stimulation of the ECN would lead to an increase in performance at the MSIT, and stimulation of the SN would result in an increase in performance at the MSIT as well as the SST.