Effects of Transcranial Temporal Interference Stimulation on Risky Decision-making and Impulse Control in Gambling Disorder

This study will apply the emerging non-invasive deep brain stimulation of tTIS to the dorsal anterior cingulate cortex in a randomized, double-blind design to demonstrate the possibility of non-invasively targeting the anterior cingulate cortex to modulate impulse control and risky decision-making without activating other regions below the electrodes. Additionally, this study will combine the fMRI recordings to describe local and network effects on brain activity. Specifically, each participant will be assessed at baseline with a scale and T1WI sequence and diffusion tensor imaging, and will randomly receive a combination of stimulation sequentially during the intervention phase, with more than a one-week interval ensuring that there is no interference between each of the two stimulation sequences.