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Glossary

Deprivation

The one piece of BDSM where the clock is more dangerous than the gear.

What is deprivation?

Deprivation, short for sensory deprivation, is the removal of sensory input, most often sight and hearing. In BDSM that happens with a blindfold, earplugs, a hood or a vacuum bed. The difference from bondage: nothing is held in place, something is simply taken away.

Full namesensory deprivation. Same meaning, and the term almost all the research is filed under.
Also known assensory deprivation and sense withdrawal; the heaviest form is described at hoods
With whatblindfold, earplugs, hood, bodybag, vacuum bed
What it doesstrips away input, so that whatever still comes through lands harder
Main limitthe clock. In lab research, 25 minutes of dark and silence is enough for a measurable rise in psychosis-like experiences

How deprivation works

The brain fills the emptiness itself. Give it nothing and it starts making patterns out of what is not there, and you can measure that.

Christina Daniel and Oliver Mason put 46 participants in a soundproof room for 25 minutes, in complete dark and complete silence. In BioMed Research International they report that both study groups showed a significant rise in what they call psychosis-like experiences. Twenty-five minutes. In a padded chair, with nothing else going on.

For a scene that means something simple. The weight is not in how much you take away, but in how long you keep it away.

Who feels it sooner

Not everyone at the same speed, and the difference is predictable.

Daniel and Mason compared two groups: 24 people who scored high on a questionnaire for the tendency to hallucinate, and 22 who scored low. Both groups had more of those experiences once the input dropped away, but the high group reported more. Both beforehand and during. Their regression analysis put that tendency forward as the best predictor, with tension in the moment itself as the second.

What did not come out is just as useful: how suggestible or imaginative someone is predicted nothing. The authors take that to mean what people report is a real change in perception and not a matter of going along easily with what is suggested.

In practice that is one sentence long. Go into a blindfold tense and more comes at you than when you start relaxed, so the ten minutes before the light goes out do more than the ten minutes after.

Why people seek deprivation

Because it goes quiet. Seeing nothing coming also means not having to size anything up, not having to manage anything, not having to hold a face that gets read.

That effect has been measured outside the playroom. Feinstein and colleagues had 50 people with anxiety and stress complaints do one session of floatation-REST, floating in water saturated with epsom salt, and saw in PLOS ONE a sharp drop in acute anxiety, with a rise in serenity, relaxation and wellbeing. A float tank is not a scene, but the mechanism underneath is the same: less input, less alarm.

That same drop in input that relaxes after ten minutes is, after half an hour, the reason people start hearing things that are not there. Anyone with a history of anxiety notices it sooner than the rest. On a BDSM date I keep an eye on the clock for that reason, not on the intensity.

Sources

  • Examining the short-term anxiolytic and antidepressant effect of Floatation-REST. Feinstein, Khalsa, Yeh, Wohlrab, Simmons, Stein & Paulus, PLOS ONE 13(2), e0190292, 2018. Fifty participants with anxiety and stress complaints; one session sharply reduced acute anxiety and raised serenity, relaxation and wellbeing.
  • Predicting Psychotic-Like Experiences during Sensory Deprivation. Christina Daniel & Oliver J. Mason, BioMed Research International 2015, article 439379 (DOI 10.1155/2015/439379, open access, full text read). Forty-six participants, 24 with a high and 22 with a low tendency to hallucinate, 25 minutes in a soundproof room in silence and dark. Provides: both groups showed a significant rise in psychosis-like experiences; the high group reported more, both beforehand and during; the regression analysis put the tendency to hallucinate forward as the best predictor, with tension in the moment as the second, while suggestibility and imaginativeness predicted nothing; and the conclusion that the rise reflects a real change in perception rather than an increased tendency to report inaccurately. Note: the widely quoted phrasing “perceptual disturbances, paranoia and anhedonia” belongs to the smaller pilot study by Mason and Brady (n = 19) discussed below, not to this study itself.
  • Blindfold. The lightest form of deprivation, and for most people the first.
  • Bodybag. Enclosure where the loss of input comes along with it rather than being the point.
  • Cocooning. Wrapping up, with the same time pressure but through heat.
  • Ademcontrole. The other way of taking something away, with a far shorter margin.
  • Gas mask. Deprivation of sight and sound, but with the breathing added in.
  • Sensory deprivation. The same concept under its full name, with the origin of the phrase and the court case around it.
  • Hood. The heaviest tool in this family.
  • Sleep deprivation. Taking sleep away instead of input; a different mechanism with a different timeline.
  • Vacuum bed. The furthest form of this principle, where the whole body is enclosed.

Frequently asked questions

What people still ask about deprivation.

  1. What is deprivation?

    Deprivation, in full sensory deprivation, is the removal of sensory input, most often sight and hearing. In BDSM it happens with a blindfold, earplugs, a hood or a vacuum bed, so that whatever still comes through lands harder.

  2. How long can deprivation last?

    Shorter than people think. Daniel and Mason put 46 participants in a soundproof room for 25 minutes in silence and dark, and saw perceptual disturbances, paranoia and anhedonia appear, reported in BioMed Research International (2015). With deprivation it is the clock that sets the weight, not the gear.

  3. Why do people seek deprivation?

    Because so much falls away that normally costs attention. Feinstein and colleagues saw acute anxiety drop sharply in 50 people with anxiety and stress complaints after one session of floatation-REST, with more serenity and relaxation (PLOS ONE, 2018). Deprivation in a scene works on the same mechanism: less input, less alarm.

  4. Who can you ask about deprivation?

    Victor, a gigolo with twenty-five years of experience in BDSM and a background as a psychotherapist. He mostly uses deprivation at the start of an evening, in short blocks and with plenty of contact. You can ask him a question without any obligation through the contact form or start with a free chat.

Blog

Articles about taking the senses away

Three articles in rising intensity: first sight alone, then the hood, then everything at once.

Related service

Sensory play on a BDSM date

Deprivation is usually where an evening starts, not where it ends up. The service page explains how an appointment like that goes.

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Still have questions about deprivation?

I'm Victor. With this one I watch the clock more than the gear, and I'm happy to explain why. Send me a message whenever you like. No obligation, I'll text you back whenever it suits you.

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