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.
Projective test, in psychology, examination that commonly employs ambiguous stimuli, notably inkblots (Rorschach Test) and enigmatic pictures (Thematic Apperception Test) to evoke responses that may reveal facets of the subjectâs personality by projection of internal attitudes, traits, and behaviour patterns upon the external stimuli.