Xidian University

This study tests whether combining 40Hz light, sound, and mild nerve stimulation can improve working memory in healthy adults. Thirty participants will try different combinations of these non-invasive stimulations while their brain activity is recorded. The goal is to understand …

This study tests whether a mild electrical current applied to the forehead during sleep can improve memory in healthy young adults. Thirty participants will spend four nights in a sleep lab, receiving either real or fake stimulation while their brain waves, heart rate, and breath…

This study tests whether stimulating a nerve in the forehead at different speeds changes how the brain and the body's automatic systems (like breathing and heart rate) work together. Twenty-five healthy adults will receive mild electrical pulses at 2Hz, 120Hz, or a fake (sham) st…

This study investigates how a gentle electrical current applied to the forehead (trigeminal nerve stimulation) affects the brain and body. Researchers will numb the forehead skin with lidocaine in one session and leave it un-numbed in another, while using fMRI to watch brain acti…