I’ve found this great document about neurotechnology and neuroethics. I didn’t have the time to read it completely, but I find that points 5, 6, and 7 are very interesting. The ‘Case study’ provides an hipotetical frame where you are a scientist with a difficult case. If you click on the tiny red question marks, you will find some difficult questions to answer regarding to ethics (they also provide a ‘correct’ answer).
By the way… have you watched the movie ‘Eternal sunshine of the spotless mind’ (with Jim Carrey)?