Term: sensory deprivation: a form of psychological torture inflicted by depriving the victim of all sensory input
Broader: torture: the deliberate, systematic, or wanton infliction of physical or mental suffering by one or more persons in an attempt to force another person to yield information or to make a confession or for any other reason | Unrelated: ostrich: fast-running African flightless bird with two-toed feet; largest living bird