Neurotechnologies are a set of techniques that utilize electric or magnetic signals to stimulate, monitor, or modulate neural activity. Our commitment is to advance our understanding of neural response to external stimuli and develop cutting-edge neurotechnologies that are effective, precise, and safe. To achieve this goal, we adopt an interdisciplinary approach that brings together neural engineering, neuroscience, and computational methods. Specifically, we develop biophysical models describing neurostimulation phenomena combined with experimental measurements to decode and shape neural activity, such as motor control and sensory perception. This helps us identify better ways to estimate what, where, and how to stimulate in a precise manner with the final goal to benefit people with neurological disorders and advance our understanding of the brain and nervous system.