Sensory deprivation (Sendep) or perceptual isolation[1] is the deliberate reduction or removal of stimuli from one or more of the senses. Simple devices such as blindfolds or hoods and earmuffs can cut off sight and hearing, while more complex devices can also cut off the sense of smell, touch, taste, thermoception (heat-sense), and 'gravity'.
The Inkblots: Hermann Rorschach, His Iconic Test, and the Power of Seeing by Damion Searls. Look at the ink blots and tell me what you see. Itâs how millions of psychological tests have started for the best part of the past century.
Lies, Damn Lies and Wonder Woman. Photo courtesy of the National Endowment for the Humanities. It's been widely acknowledged that William Moulton Marston invented the systolic blood pressure test (eventually developed into the lie detector) in addition to creating superhero character Wonder Woman. Most of the time, articles about Marston are either about the lie detector or Wonder Woman, but not both.