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Schizoid Personality Disorder Causes

(Also Known As: Schizoid Causes, Personality Disorder Causes, Schizophrenic Causes, Schizoid Personality Causes, Pleasure Deficiency Causes)

(Reviewed by: Paul Peterson, Licensed Therapist)

What Causes Schizoid Personality Disorder?

Although the cause of schizoid personality disorder is unknown, scientists believe that it is caused by genetic, biological, and environmental factors. While they may not have schizophrenia, it seems that many of the similar causative factors of schizophrenia likewise apply to schizoid personality disorder.

This kind of personality disorder is rooted in the family of the schizoid individual. The family of an individual with schizoid personality disorder demonstrates emotional reservation, high level of formality, and aloof and impersonal communication. The parents of an individual with schizoid personality disorder show an insufficient amount of affection and emotional stimulus to their child. The latter is believed to be the cause for the person’s disinterest in establishing close and meaningful relationships in the latter stages of their life.

While the causes of a schizoid personality is not known, researchers have attributed the onset of the condition to the following findings: 3

  • Schizoid personality disorder is brought about by an increase in the size of the ventricles and cavities between the two hemispheres in the left frontal lobe of the brain. Individuals with schizoid personality have larger ventricles than normal people but not as large as those with schizophrenia.
  • People suffering from a schizoid personality have increased activity in certain neurotransmitters in the brain. This is the component of the brain that is responsible for transmitting messages from one neuron to another.
  • Although having a schizoid personality is also attributed to negative childhood experiences, there is still a need to make further studies before it becomes a definite cause for the personality disorder.

Could You Have Schizoid Personality Disorder?

Schizoid Personality Disorder Topics

Related Conditions

Bipolar Disorder – Manic Depression, Mood Disorder, Mania, Depression, Hypomania
Borderline Personality Disorder – Changes in Mood, Unstable Social Relationships, Distorted Self Image, Dissociation
Schizophrenia – Abnormal Perception and Expression of Reality, Hallucination, Delusion, Paranoid, Disorganized Speech
Schizotypal Personality Disorder – Mood Changes, Paranoid, Social Anxiety, Delusion