Deep brain stimulation is a well-accepted treatment for movement disorders and is currently explored as a treatment option for various neurological and psychiatric disorders. Several case studies suggest that DBS may, in some patients, influence mental states critical to personality to such an extent that it affects an individual’s personal identity, i.e. the experience of psychological continuity, of persisting through time as the same person. Without questioning the usefulness of DBS as a treatment option for various serious and treatment refractory (...) conditions, the potential of disruptions of psychological continuity raises a number of ethical and legal questions. An important question is that of legal responsibility if DBS induced changes in a patient’s personality result in damage caused by undesirable or even deviant behavior. Disruptions in psychological continuity can in some cases also have an effect on an individual’s mental competence. This capacity is necessary in order to obtain informed consent to start, continue or stop treatment, and it is therefore not only important from an ethical point of view but also has legal consequences. Taking the existing literature and the Dutch legal system as a starting point, the present paper discusses the implications of DBS induced disruptions in psychological continuity for a patient’s responsibility for action and competence of decision and raises a number of questions that need further research. (shrink)

In this article, I explore select case studies of Parkinson patients treated with deep brain stimulation in light of the notions of alienation and authenticity. While the literature on DBS has so far neglected the issues of authenticity and alienation, I argue that interpreting these cases in terms of these concepts raises new issues for not only the philosophical discussion of neuro-ethics of DBS, but also for the psychological and medical approach to patients under DBS. In particular, I suggest that (...) the experience of alienation and authenticity varies from patient to patient with DBS. For some, alienation can be brought about by neurointerventions because patients no longer feel like themselves. But, on the other hand, it seems alienation can also be cured by DBS as other patients experience their state of mind as authentic under treatment and retrospectively regard their former lives without stimulation as alienated. I argue that we must do further research on the relevance of authenticity and alienation to patients treated with DBS in order to gain a deeper philosophical understanding, and to develop the best evaluative criterion for the behavior of DBS patients. (shrink)

Der Artikel spürt den subtilen Veränderungen nach, die bei Patienten, die mit tiefer Hirnstimulation behandelt werden, möglicherweise beobachtet werden können. Dabei sollen im Rückgriff auf Konzeptionen zur narrativen Identität mittels einer möglichst genauen Beschreibung und Analyse der Selbstwahrnehmung der Patienten sowie der Wahrnehmung ihres Umfelds die Änderungen im praktischen Selbstverhältnis untersucht werden, u. a. am Beispiel technomorpher Metaphern, die von den Patienten in ihren Selbstbeschreibungen verwendet werden. Ziel ist es, die Neuartigkeit und das Spezifische der Neurotechnologien – über die bisherigen (...) Untersuchungen hinaus – hinsichtlich des Umgangs mit sich selbst herauszuarbeiten und greifbar zu machen. Abschließend werden auf Basis der Analyse der Patienten-Narrationen die entsprechenden normativen Implikationen für eine ethische Bewertung des Einsatzes von Neurotechnologien benannt. (shrink)