 Jonas claims in some passages that research participants, at least those with an illness, can share the goals of a clinical research study only when they have the condition or illness under study (Jonas 1969). These passages reveal something of the account of human interests on which Jonas’s arguments rely. On standard preference satisfaction accounts of human interests, what is in a given individual’s interests depends on what the individual happens to want or prefer, or the goals the individual happens to endorse, or the goals the individual would endorse in some idealized state scrubbed clean of the delusions, misconceptions and confusion which inform their actual preferences (Griffin 1986). On this view, participation in clinical research would promote an individual’s interests as long as she was well informed and wanted to participate. This would be so whether or not she had the condition being studied. Jonas’s view, in contrast, seems to be that there are objective conditions under which individuals can share the goals of a given research study. They can endorse the cause of curing or at least finding treatments for Alzheimer disease only if they suffer from the disease themselves.