Table 14.

Ethical issues.

Category	Relevant Issues
Anatomy	1. Does the subject have the capacity to consent to or refuse their use and all aspects of their use?
	2. Has the subject been fully informed of possible effects of their use, of who has access to the information and what the responses will be?
	3. Are there mechanisms in place to ensure continuing consent?
	4. Does the subject have control over the use of and responses to the device?
	5. If the subject lacks capacity to consent, is the consent procedure appropriate?
Privacy	1. In what ways do the uses of and responses to the device invade the subject's privacy?
	2. How can such invasion be minimized?
	3. Do the benefits of using the device outweigh the invasion of privacy?
Benefit	1. What are the expected benefits of using the device both in the short and longer term?
	2. What are the dangers and possible unwanted effects of their use both in the short and long term?
	3. How can the benefits be maximized and the unwanted effects minimized?
	4. Where do the overall best interests lie?