Sustained attention is a critical aspect of daily life. It is essential for effectively accomplishing tasks and engaging with the surrounding world. Whether it's studying, working on assignments, or driving, maintaining focus and concentration for extended periods is crucial, since sustained attention enables to stay on track, resist distractions, and achieve heightened levels of productivity and performance. This study aims to investigate the effectiveness of adaptive transcranial direct current stimulation (tDCS) in enhancing sustained attention. A sample of 10 healthy university students aged between 20 and 27 years old is used during the execution of a specific cognitive task, namely the Continuous Performance Task-AX (CPT-AX).