White torture, often referred to as “white room torture,” is a type of psychological torture technique aimed at complete sensory deprivation and isolation. A prisoner is held in a cell that deprives them of all senses and identity. It is particularly used in Iran; however, there is also evidence of its use in the United States, Venezuela, Ireland and other parts of Europe.

Visually, the prisoner is deprived of all colour. Their cell is completely white: the walls, floor and ceiling, as well as their clothes and food. Neon tubes are positioned above the occupant in such a way that no shadows are shown.

Auditory, the cell is soundproof, and void of any sound, voices or social interaction. Guards are stood in silence wearing padded shoes to avoid making any noise. Prisoners cannot hear anything but themselves.

In terms of taste and smell, the prisoner is fed white food — classically, unseasoned rice — to deprive them of these senses. Further, all surfaces are smooth, robbing them of tact.

Detainees are often held for months, or even years. The effects of white torture are well-documented in a number of testimonials. Typically, prisoners will become depersonalized by losing personal identity for extended periods of isolation; causing hallucinations, or even psychotic breaks.