👉 Rug human experiments were a series of unethical psychological studies conducted in the 1930s and 1940s on prisoners in Nazi concentration camps, where participants were subjected to various sensory and visual stimuli to test the limits of human tolerance and psychological endurance. These experiments often involved placing prisoners under conditions designed to induce fear or discomfort through manipulating textures, sounds, or visuals, leading to severe psychological distress and long-lasting trauma.