Cognitive Effects of Theta-burst Stimulation (TBS) in Suspected Non-Alzheimer Disease Pathophysiology (SNAP)

The investigators will perform standard intermittent TBS (iTBS) parameters to left DLPFC of every patient in the study. The frequency parameters of TBS are 3-pulse 50- Hz bursts, every 200 ms at 5 Hz, and the intensity is 90% of active motor threshold. A single session of iTBS contains 2 s of TBS repeated every 10 s for 20 times. In this study, The investigators will give two sessions of iTBS separated by 15 min.

The investigators will perform standard intermittent TBS (iTBS) parameters to left DLPFC of every patient in the study. The frequency parameters of TBS are 3-pulse 50- Hz bursts, every 200 ms at 5 Hz, and the intensity is 90% of active motor threshold. A single session of iTBS contains 2 s of TBS repeated every 10 s for 20 times. In this study, The investigators will give two sessions of iTBS separated by 15 min. Sham stimulation applies the same iTBS protocol with the sham coil.