Sensory deprivation
Sensory deprivation or perceptual isolation is the deliberate reduction or removal of stimuli from one or more of the senses. Simple devices such as blindfolds or haptic gloves can cut off sight and touch, while more complex devices can also cut off the sense of smell, taste, thermoception (heat-sense), and 'gravity'. Sensory deprivation has been used in various alternative medicines and in psychological experiments (e.g. with an isolation tank). Short-term sessions of sensory deprivation are described as relaxing and conducive to meditation; however, extended or forced sensory deprivation can result in extreme anxiety, hallucinations, bizarre thoughts, and depression.
History[edit | edit source]
The term "sensory deprivation" was coined by John C. Lilly in 1954 when he was at the National Institute of Mental Health (NIMH). Lilly and his team members were probing the origins of consciousness and its relation to the brain. From the 1960s onwards, sensory deprivation began to be used for relaxation or in alternative medicine.
Effects[edit | edit source]
The effects of sensory deprivation can vary widely depending on the individual and the length and intensity of the session. Short-term sessions are often reported to be relaxing, promoting of deep meditation, and beneficial for creativity. However, extended or forced sensory deprivation can result in anxiety, hallucinations, bizarre thoughts, and depression.
See also[edit | edit source]
References[edit | edit source]
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