Psychopathology of Dissociative Disorders

NCT ID: NCT01388140

Last Updated: 2011-07-06

Basic Information

• Recruitment Status: UNKNOWN
• Total Enrollment: 150 participants
• Study Classification: OBSERVATIONAL
• Study Start Date: 2011-03-31
• Study Completion Date: 2012-08-31

Brief 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.

Detailed 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.

Conditions

Dissociative Disorders

Study Design

• Observational Model Type: CASE_CONTROL
• Study Time Perspective: CROSS_SECTIONAL

Study Groups

psychiatric inpatients, regardless of clinical diagnoses

No interventions assigned to this group

Eligibility Criteria

Inclusion Criteria

• being stable and appropriate for interviews

Exclusion Criteria

• with organic syndromes
• mentally retarded (FIQ <80)
• cannot communicate in Mandarin Chinese

• Minimum Eligible Age: 20 Years
• Maximum Eligible Age: 60 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

National Taiwan University Hospital

OTHER

Sponsor Role: lead

Responsible Party

National Taiwan University Hospital

Principal Investigators

Hai-Gwo Hwu, MD

Role: PRINCIPAL_INVESTIGATOR

National Taiwan University Hospital

Locations

Department of Psychiatry, National Taiwan University

Taipei, , Taiwan

Site Status: RECRUITING

Countries

Taiwan

Central Contacts

Hai-Gwo Hwu, MD

Role: CONTACT

haigohwu@ntu.edu.tw

886-2-23123456 ext. 66785

Chui-De Chiu, MS

Role: CONTACT

d97227202@ntu.edu.tw

886-968-222-966

Facility Contacts

Hai-Gwo Hwu, MD

Role: primary

haigohwu@ntu.edu.tw

886-2-23123456 ext. 66785

Chui-De Chiu, MS

Role: backup

d97227202@ntu.edu.tw

886-2-968-222966

References

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. doi: 10.1176/ajp.2006.163.8.1388.

Reference Type: BACKGROUND

PMID: 16877651 (View on PubMed)

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. doi: 10.1176/ajp.156.3.379.

Reference Type: BACKGROUND

PMID: 10080552 (View on PubMed)

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.

Reference Type: BACKGROUND

PMID: 19222327 (View on PubMed)

Other Identifiers

201012003RB

Identifier Type: -

Identifier Source: org_study_id