Symptoms of Schizotypal Personality Disorder
Diagnosis requires five or more of the following symptoms, typically present by early adulthood:
- Persistent and excessive social anxiety
- Being a loner — usually lacking close friends outside of immediate family
- Flat affect — limited or inappropriate emotional responses
- Frequent suspicious or paranoid thoughts; doubting the loyalty of others
- Unusual perceptions, such as sensing an absent person’s presence or experiencing illusions
- Appearing unkempt; dressing in peculiar ways
- Eccentric or unusual thinking, beliefs, or mannerisms
- Belief in special powers such as mental telepathy or superstitions
- Incorrectly interpreting events — perceiving something harmless as having direct personal negative meaning
- Peculiar style of speech — vague or unusual patterns, or rambling oddly during conversations
Signs may first appear in the teen years as heightened social anxiety, preference for solitary activities, underperformance in school, or social isolation and bullying.
Causes of Schizotypal Personality Disorder
The precise cause is not fully known. Genetics, environmental influences, and learned behaviors are all believed to play a role. Risk is higher if a relative has schizophrenia or another psychotic disorder. Untreated, the condition can increase risk of depression, anxiety, substance use, and in some cases schizophrenia itself.
Treatment for Schizotypal Personality Disorder
People with schizotypal personality disorder rarely initiate treatment. When treatment is pursued, both therapy and medication can be beneficial.
Therapy
Psychotherapy helps build trust and develop coping skills. Options include:
- CBT: Cognitive-behavioral therapy helps cope with negative thought patterns by managing dysfunctional emotions, behaviors, and thinking in a structured, goal-oriented way.
- Supportive therapy: Supportive therapy serves as a bridge out of social isolation. Addresses personality deficits and defense mechanisms; provides encouragement, fosters adaptive skills, and improves self-esteem.
- Family therapy: Family therapy improves communication, resolves conflict, and supports the family unit as a whole rather than the individual alone.
Medication
If a doctor determines medication is needed, they may prescribe:
- Antipsychotics: Aripiprazole (Abilify, Aristada), olanzapine (Zyprexa), quetiapine (Seroquel), or risperidone (Risperdal)
- Stimulants: Methylphenidate (Concerta, Ritalin)
- Cognition-enhancing medication: Guanfacine (Intuniv, Tenex)
- Benzodiazepines: Clonazepam (Klonopin)
- Anticonvulsant/nerve pain medication: Gabapentin (Gralise, Neurontin)









