>>12016931If you want to work specifically on the signals part then EE or Neuroscience would be the correct choice. The most important thing is going to a university where someone is currently doing research on this shit, then you would want to take a class of theirs, do really well in it and form a good relationship and then ask to work in their group. If you can't/don't go to a university that does this shit, then try and get some research experience in similar stuff, then try and get a summer position at a place that does these prosthetic or apply to get a masters/phd with an advisor doing this research.
The question you should ask yourself if you are not too familiar with the field is do you really want to do this shit, do you want to be doing a bunch of stuff with Fourier transforms and a bunch of other complex math, or would it be better to do neuroscience, or do mechanical engineering and design the materials/movement, or biomedical engineering (never get an bachelors in biomedical unless it is duel with another engineering degree, do mech/EE undergrad then do biomed masters/phd) and get to do the overall design of the prostetic.
That was a lot of rambling and shit, but TLDR go to a uni that does this research, and figure out if you are a math fanatic (then go EE), or more interested in the neural stuff (go neuroscience).
Let me know if you have any more questions.
