Our research project is centered on the innovative field of neuromodulation for pain intervention by using the transcranial alternating current stimulation (tACS) to modulate the oscillatory activities within neuronal circuits to understand how neuromodulation affects both the oscillatory brain activity, measured through electroencephalogram (EEG) signals, and the subjective experience of pain. We will incorporate machine learning algorithms and connectivity analysis to gain a deeper understanding of the underlying neural processes associated with pain. The ultimate goal of our project is to develop a novel closed-loop neuromodulation system. This system will dynamically stimulate the brain based on real-time EEG activity, creating a responsive and potentially more effective solution for pain management. Our work not only contributes to the understanding of brain oscillations in pain perception but also opens new avenues for more effective, personalized therapeutic interventions for pain management.