This class needs a rework - the course description does not match this class at all. I went in thinking we would learn about various technologies and applications of research in neural engineering, but every lecture is a convoluted presentation on deriving various circuit models of electrodes. The prerequisite is Physics 1B/5C, but the circuitry is more complicated. The homework isn't that bad, but you have to sort through a bunch of slides of nonsensical proofs and the occasional cool picture of an application to get the right formulas. The final project, which involves a fair bit of signal processing and machine learning, involves NONE of what the class teaches up to that point. Professor Liu is nice though, but wouldn't recommend this class.