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.
Although the widespread use of psychological testing is largely a phenomenon of the 20th century, it has been noted that rudimentary forms of testing date back to at least 2200 B.C., when the Chinese emperor had his officials examined every third year to determine their fitness for office (Gregory, 1992).s such, the administrator of the test will usually comment that it is a test of ones most frequent preference or dominant tendency as apposed to a rigid diagnosis. David Keirsey, a renowned psychologist born in Oklahoma in 1921, modified the test by organising the 16 personality types into four main temperaments.