 Psychologist Julian Jaynes, in his 1976 book "The Origin of Consciousness in the Breakdown of the Bicameral Mind", wrote that the test is "routinely administered as an indicator of schizophrenia," and that while not all schizophrenic patients have trouble drawing a person, when they do, it is very clear evidence of a disorder.Specific signs could include a patient's neglect to include "obvious anatomical parts like hands and eyes," with "blurred and unconnected lines," ambiguous sex and general distortion.There has been no validation of this test as indicative of schizophrenia.