Psychopathology of Dissociative Disorders

Dissociative Disorders Clinical Trial

Official title:

A Psychopathological Study of Dissociative Disorders in Psychiatric Inpatients at an Acute Stage

Clinical Trial Details — Status: Recruiting

Administrative data

• NCT number: NCT01388140
• Other study ID #: 201012003RB
• Status: Recruiting
• Phase: N/A
• First received: July 1, 2011
• Last updated: July 5, 2011
• Start date: March 2011
• Est. completion date: August 2012

Study information

• Verified date: January 2011
• Source: National Taiwan University Hospital
• Contact: Hai-Gwo Hwu, MD
• Phone: 886-2-23123456
• Email: haigohwu[@]ntu.edu.tw
• Is FDA regulated: No
• Health authority: Taiwan: Department of Health
• Study type: Observational

Clinical Trial Summary

The goal of the project is to investigate the prevalence of dissociative disorders in psychiatric inpatients in Taiwan. Relevant clinical issues, including common psychiatric comorbidity (e.g., positive psychotic symptoms), associated psychosocial factors (e.g., negative life events, perceived parenting style), and neuro-cognitive underpinning (e.g., executive functions) were also targeted. Standardized interview schedules, self-report scales, and cognitive tasks will be applied. The investigators hypothesized that dissociative disorders would be associated with positive psychotic symptoms, a history of early interpersonal adversity, and enhanced executive functions.

Description:

Though formally included in the Diagnostic and Statistic Manual of Mental Disorders since 1980, dissociation had once been considered as a rare psychiatric disturbance. With standardized structured interview, however, recent empirical studies showed that in average 9 percent of participants in general population, 10 percent in psychiatric outpatients, and 15 percent in psychiatric inpatients receive the diagnosis of a dissociative disorder. In Taiwan few attempts have been made for systematic investigation of dissociative disorders. Little has been known about the characteristics, prevalence, and associated features of Taiwanese patients with a dissociative disorder. The goal of the project is to investigate the prevalence of dissociative disorders in psychiatric inpatients in Taiwan. Relevant clinical issues, including common psychiatric comorbidity (e.g., positive psychotic symptoms), associated psychosocial factors (e.g., negative life events, perceived parenting style), and neuro-cognitive underpinning (e.g., executive functions) were also targeted. Standardized interview schedules, self-report scales, and cognitive tasks will be applied and the assessment will be held by the licensed clinical psychologist who receive training on the assessment and treatment of dissociative disorders. The results may enhance the understanding about the clinical features of dissociative disorders in Taiwan.

Recruitment information / eligibility

• Status: Recruiting
• Enrollment: 150
• Est. completion date: August 2012
• Est. primary completion date: August 2012
• Accepts healthy volunteers: No
• Gender: Both
• Age group: 20 Years to 60 Years

Eligibility

Inclusion Criteria:

• being stable and appropriate for interviews

Exclusion Criteria:

• with organic syndromes

• mentally retarded (FIQ <80)

• cannot communicate in Mandarin Chinese

Study Design

Observational Model: Case Control, Time Perspective: Cross-Sectional

Related Conditions & MeSH terms

• Conversion Disorder
• Dissociative Disorders

Locations

Country	Name	City	State
Taiwan	Department of Psychiatry, National Taiwan University	Taipei

Sponsors (1)

Lead Sponsor	Collaborator
National Taiwan University Hospital

Country where clinical trial is conducted

Taiwan, 

References & Publications (3)

Chiu CD, Yeh YY, Huang YM, Wu YC, Chiu YC. The set switching function of nonclinical dissociators under negative emotion. J Abnorm Psychol. 2009 Feb;118(1):214-22. doi: 10.1037/a0014654. — View Citation

Draijer N, Langeland W. Childhood trauma and perceived parental dysfunction in the etiology of dissociative symptoms in psychiatric inpatients. Am J Psychiatry. 1999 Mar;156(3):379-85. — View Citation

Xiao Z, Yan H, Wang Z, Zou Z, Xu Y, Chen J, Zhang H, Ross CA, Keyes BB. Trauma and dissociation in China. Am J Psychiatry. 2006 Aug;163(8):1388-91. — View Citation