It was in 1929 that Salvador Dali [Dali is writing about himself] brought his attention to hear upon the internal mechanism of paranoiac phenomena and envisaged the possibility of an experimental method based on the sudden power of the systematic associations proper to paranoia; this method afterwards became the delirio-critical synthesis which hears the name of "paranoiac-critical activity". Paranoia: delirium of interpretive association bearing a systematic structure. Paranoiac-critical activity: spontaneous method of irrational knowledge based upon the interpretive-critical association of delirious phenomena.