Diagnosis of STPD Clinical criteria (Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition [DSM-5]) For a diagnosis of schizotypal personality disorder, patients must have A persistent pattern of intense discomfort with and decreased capacity for close relationships Cognitive or perceptual distortions and eccentricities of behavior This pattern is shown by the presence of ≥ 5 of the following: Ideas of reference (notions that everyday occurrences have special meaning or significance personally intended for or directed to themselves) but not delusions of reference (which are similar but held with greater conviction) Odd beliefs or magical thinking (eg, believing in clairvoyance, telepathy, or a sixth sense; being preoccupied with paranormal phenomena) Unusual perceptional experiences (eg, hearing a voice whispering their name) Odd thought and speech (eg, that is vague, metaphorical, excessively elaborate, or stereotyped) Suspicions or paranoid thoughts Incongruous or limited affect Odd, eccentric, or peculiar behavior and / or appearance Lack of close friends or confidants, except for 1st-degree relatives Excessive social anxiety that does not lessen with familiarity and is related mainly to paranoid fears Also, symptoms must have begun by early adulthood.