A guardian can give the go-ahead, and despite some critiques of the practice, it can be done ethically.
The narrative arc of a recent report by Luke Dittrich concerning Henry Molaison (known as patient H.M.) is deeply disturbing. First, says Dittrich in his book “Patient H.M.,” a surgeon recklessly excised a part of Molaison’s brain critical for memory. Molaison, permanently disabled, was subsequently subjected to years of experimentation without proper consent by a scientist at the Massachusetts Institute of Technology (MIT), Dr. Suzanne Corkin, who built her career on Mr. Molaison’s back and ultimately tried to supress data that conflicted with hers.
Read more from Scientific American | November 7th, 2016: https://www.scientificamerican.com/blog/mind-guest-blog/when-patients-ca...