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Related Concept Videos

Obsessive-Compulsive Disorder01:28

Obsessive-Compulsive Disorder

29
Obsessive-compulsive disorder (OCD) is a mental health condition characterized by recurrent obsessions, compulsions, or both, which consume significant time and interfere with daily functioning. Obsessions involve persistent, intrusive, and unwanted thoughts, images, or urges that evoke anxiety. Common examples include irrational fears of contamination or harm. Compulsions are repetitive behaviors or mental acts performed to reduce the anxiety caused by obsessions. For instance, individuals...
29
Personality Disorders: Dependent and Obsessive-Compulsive01:24

Personality Disorders: Dependent and Obsessive-Compulsive

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Dependent personality disorder and obsessive-compulsive personality disorder are two separate psychological conditions that influence behavior, relationships, and overall life functioning. Though both involve maladaptive behaviors, their core characteristics and motivations differ significantly.
 Dependent Personality Disorder
Dependent personality disorder is characterized by an excessive reliance on others to manage various aspects of life. Individuals with this disorder often struggle...
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Treatment Strategies for Psychological Disorders01:24

Treatment Strategies for Psychological Disorders

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Treatment approaches for psychological disorders fall into three main categories: psychological, biological, and sociocultural. Each approach targets different aspects of mental health, requiring varying levels of education and training.
Psychological therapies focus on modifying emotions, thoughts, and behaviors through talking, interpreting, listening, rewarding, challenging, and modeling. Clinical psychologists, counselors, and social workers commonly practice psychotherapy. Clinical...
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Theoretical Approaches to Psychological Disorder01:29

Theoretical Approaches to Psychological Disorder

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The development of psychological disorders, which are characterized by deviant, maladaptive, and personally distressing behaviors, has been explored through several theoretical approaches.
Biological approach
The biological approach posits that internal, organic factors are the primary causes of such disorders. This perspective emphasizes brain structure and function, genetic predispositions, and neurotransmitter imbalances. For example, schizophrenia has been associated with both genetic...
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Personality Disorders: Schizotypal and Histrionic01:20

Personality Disorders: Schizotypal and Histrionic

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Schizotypal personality disorder and histrionic personality disorder are two distinct psychological conditions classified under personality disorders, each characterized by unique behavioral patterns and social difficulties. Both disorders significantly affect interpersonal relationships and emotional well-being, leading to social isolation and frustration.
Schizotypal Personality Disorder: Eccentric Behavior and Social Withdrawal
Schizotypal personality disorder is marked by odd or eccentric...
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Evolutionary Psychology01:20

Evolutionary Psychology

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Evolutionary psychology explores the origins of human behavior and mental processes by framing them within the context of natural selection, a theory famously propounded by Charles Darwin. This field asserts that many behaviors common across human societies — ranging from instinctive fear reactions to complex social interactions — arose as evolutionary adaptations. These adaptations enhanced the survival and reproductive success of our ancestors, thereby becoming embedded in the...
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Signal Attenuation as a Rat Model of Obsessive Compulsive Disorder
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Evolutionary Systems Therapy for Obsessive-Compulsive Personality Disorder: A Five-Case Series.

Simone Cheli1,2, Gil Goldzweig3, Paul L Hewitt4

  • 1From Center for Psychology and Health, Tages Charity, Florence, Italy.

Journal of Personality Disorders
|February 27, 2025
PubMed
Summary

Evolutionary systems therapy shows promise for treating obsessive-compulsive personality disorder (OCPD). This novel psychotherapy approach led to symptom remission and maintained improvements in a small case series.

Keywords:
evolutionary systems therapyobsessive-compulsive personality disorderovercontrolperfectionismself-criticism

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Area of Science:

  • Psychiatry and Psychology
  • Clinical Psychology
  • Psychotherapy Research

Background:

  • Obsessive-compulsive personality disorder (OCPD) is the most prevalent personality disorder.
  • Effective psychotherapeutic interventions for OCPD remain insufficiently understood.
  • There is a need for novel treatment approaches for OCPD.

Purpose of the Study:

  • To evaluate the effectiveness and feasibility of evolutionary systems therapy (EST) for adults diagnosed with OCPD.
  • To assess changes in personality pathology, anxiety, depression, perfectionism, self-criticism, and overcontrol.
  • To examine the maintenance of treatment gains at follow-up.

Main Methods:

  • A case series design was employed with five adult participants diagnosed with OCPD.
  • Participants received 6 months of evolutionary systems therapy (EST).
  • Primary outcomes (personality pathology) were assessed monthly; secondary outcomes (anxiety, depression, etc.) were assessed at baseline and end of treatment. Feasibility was also evaluated.

Main Results:

  • All participants demonstrated reliable changes and achieved remission from OCPD diagnosis after 6 months of EST.
  • Symptom improvements were sustained at 1-month and 3-month follow-ups.
  • The intervention was feasible, with good completion and attendance rates and no reported adverse events.

Conclusions:

  • Evolutionary systems therapy (EST) appears to be a potentially effective treatment for obsessive-compulsive personality disorder (OCPD).
  • EST demonstrated significant improvements in primary and secondary outcomes, with sustained effects.
  • Further research is warranted to confirm the acceptability and efficacy of EST in larger, controlled trials for OCPD.