Psychological torture is a type of torture that relies primarily on psychological effects, and only secondarily on any physical harm inflicted. Although not all psychological torture involves the use of physical violence, there is a continuum between psychological torture and physical torture. The two are often used in conjunction with one another, and often overlap in practice, with the fear and pain induced by physical torture often resulting in long-term psychological effects, and many forms of psychological torture involving some form of pain or coercion.
The Convention against Torture and Other Cruel, Inhuman or Degrading Treatment or Punishment (commonly known as the United Nations Convention against Torture) is an international human rights treaty, under the review of the United Nations, that aims to prevent torture and other acts of cruel, inhuman, or degrading treatment or punishment around the world. The Convention requires states to take effective measures to prevent torture in any state under their jurisdiction, and forbids states to transport people to any country where there is reason to believe they will be tortured.
The text of the Convention was adopted by the United Nations General Assembly on 10 December 1984 and, following ratification by the 20th state party, it came into force on 26 June 1987. 26 June is now recognized as the International Day in Support of Victims of Torture, in honor of the Convention. As of May 2015, the Convention has 158 state parties.
The Convention gave for the first time in history a definition of psychological torture:
Torture is any act by which severe pain or suffering, whether physical or mental, is intentionally inflicted on a person for such purposes as obtaining from him or a third person information or a confession, punishing him for an act he or a third person has committed or is suspected of having committed, or intimidating or coercing him or a third person, or for any reason based on discrimination of any kind, when such pain or suffering is inflicted by or at the instigation of or with the consent or acquiescence of a public official or other person acting in an official capacity.