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.
Alfred Binet was a French psychologist who invented the first practical IQ test, the BinetâSimon test. In 1904, the French Ministry of Education asked psychologist Alfred Binet to devise a method that would determine which students did not learn effectively from regular classroom instruction so they could be given remedial work. Along with his collaborator ThÃ©odore Simon, Binet published revisions of his test in 1908 and 1911, the last of which appeared just before his death.