Informed Consent is your personal Human Right.
It gives you and me the legal authority to say No, we do not desire to participate in a human experiment; and gives us the right to terminate participation at any time of our own free will even if we did give Informed Consent initially.
I, beckyb, have never given my Informed Consent permission to anyone to participate in a human experiment. I do not want to be a research test subject.
In any research on human beings, each potential subject must be adequately informed of the aims, methods, anticipated benefits and potential hazards of the study and the discomfort it may entail. He or she should be informed that he or she is at liberty to abstain from participation in the study and that he or she is free to withdraw his or her Consent to participation at any time.
References: International Declaration of Helsinki, 1966; the U.S. National Bioethics Advisory Commission; Nuremberg Code on Informed Consent; and the Hippocratic Oath of First Do No Harm.
Also check with your local University Office of Research Compliance.