Elisabeth Hildt

Individual autonomy is a concept highly appreciated in modern Western societies. Its significance is reflected by the central importance and broad use of the model of informed consent in all fields of medicine. In predictive genetic testing, individual autonomy gains particular importance, for what is in focus here is not so much a concrete medical treatment but rather options for taking preventive measures and the influence that the test results have on long-term lifestyle and preferences. Based on an analysis of autonomy-related issues in predictive genetic diagnosis and genetic screening programmes, this contribution stresses the central relevance of a broad notion of autonomy for the discussion of ethical issues raised in connection with predictive genetic testing and genetic screening programmes. Only against the background of such a broad notion of autonomy, which stresses not only free and informed decision-making but also the relevance of long-term prospects for leading a self-determined life in familial and social contexts, can the manifold autonomy-related issues linked to predictive genetic testing be given adequate consideration

In the following text, medical, anthropological and ethical issues of deep brain stimulation, a medical technology in which electrodes implanted in the human brain electrically influence specified brain regions, will be discussed. After a brief account of the deep brain stimulation procedure and its chances and risks, anthropological and ethical aspects of the approach will be discussed. These relate to the reversibility of the procedure and to the patient’s capacity to control the effects it exerts in the brain, to modifications and fluctuations in a person’s character traits and individuality brought about by neurostimulation, and to the range of legitimate, adequate uses of the deep brain stimulation approach. The paper concludes that deep brain stimulation should be confined to therapeutic contexts and to severe, otherwise treatment-refractory disorders in which the aim is to normalize brain functioning. Apart from this, it should not be used to modify a person’s individual character traits and behaviour or to enhance human traits