title: Perceptual rigidity in paranoid schizophrenia: use of projective animal drawings.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D003937:Diagnosis, Differential; D005069:Evaluation Studies as Topic; D006801:Humans; D008297:Male; D001523:Mental Disorders / Q000175:diagnosis; D008875:Middle Aged; D010551:Personality; D011336:Probability; D011386:Projective Techniques; D011594:Psychometrics; D012563:Schizophrenia, Paranoid / Q000175:diagnosis*; D012565:Schizophrenic Psychology; D014796:Visual Perception