Objective: We aimed to determine the maximum safe spatial-peak pulse-average intensity (ISPPA) of low-intensity focused ultrasound stimulation (LIFUS) in stroke patients and explore its effect on motor learning and corticospinal excitability. Methods: We adopted the classic 3 + 3 design to escalate ISPPA (estimated in-vivo transcranial value) from 0. 1. 2. https://goodvibesbadhabiters.shop/product-category/wand-essentials/