Abstract

Many experimental brain-computer interfaces (BCIs) are currently being medically tested in paralyzed patients. While the new generations of implantable BCIs move rapidly ahead at trying to increase the patients’ well-being, ethical concerns about their potential effects on patients’ psychological dimensions (e.g. sense of agency and control) are growing. An important ethical concern to explore is how BCIs may introduce unprecedented vulnerabilities to implanted individuals.Our chapter shows that, on the one hand, BCIs can empower the sense of self and control, which contribute to well-being. On the other hand, they can introduce unprecedented vulnerabilities, for example, by inducing radical distress, feelings of loss of control, and a rupture of patient identity, which decrease one’s well-being. To investigate a possible solution to this problem we propose to understand the implementation of a BCI system in one’s body through the capability approach. This calls for a careful ethical examination of new morally salient issues prior to seeing an increase in BCI-related psychological effects in an open market.