PPD Schizotypal Personality Disorder

 

Schizotypal Personality Disorder (STPD) is generally considered the personality disorder most closely related to schizophrenia. Both can involve unusual thinking, perceptions, and behavior, but they differ significantly in severity and diagnostic features.

 Main features are distrust and suspicion. Main features include eccentricity and unusual thinking/perceptions

Interprets others as potentially harmful or deceptive.

May have unusual beliefs or perceptual experiences

Often guarded and defensive.

May behave or communicate in unusual ways

Relationships are affected by mistrust. Relationships are affected by social difficulties and unusual thinking

 Feature   Schizotypal Personality Disorder    Schizophrenia

Social relationships Often very limited or uncomfortable   Often significantly impaired

Thinking  Odd or unusual thinking Disorganized thinking can be much more severe

Beliefs    Odd beliefs or magical thinking    Delusions may occur

Perception    May have unusual perceptual experiences  Hallucinations may occur

Reality testing   Generally maintained   Can be significantly impaired

Psychosis Does not typically have sustained psychosis. Psychosis is a central feature

Duration  Long-standing personality pattern    Requires characteristic symptoms over a specified period

Severity  Generally less severe   Generally more severe

And PPD is also different from schizophrenia. A person with PPD can have intense suspiciousness without having the characteristic psychotic symptoms required for schizophrenia.

 

One useful way to remember PPD

 

Think:

 

“I don't know if I can trust you.”

 

The central problem isn't simply fear. It is persistent mistrust and interpretation of other people's motives as potentially hostile or deceptive.