Dissociative amnesias in everyday life

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

DRKS

Registry ID

DRKS00038861

Enrollment

Registered

2026-01-15

Start date

2026-08-10

Completion date

Unknown

Last updated

2026-08-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

F44

Interventions

Group 1: Dissociative amnesias represent a form of memory or time gaps that occur in everyday life and can significantly impair quality of life. The aim of this study is to investigate whether regular

Eligibility

Sex/Gender

All

Age

18 Years to 65 Years

Inclusion criteria

Inclusion criteria: Patients with dissociative disorders (ICD-10: F44). Report of time gaps in daily life at study start.

Exclusion criteria

Exclusion criteria: Previous brain surgery. Certain infectious and parasitic diseases (ICD-10 A00-B99), malignant tumor diseases (ICD-10 C00-C97), organic mental disorders (ICD-10 F00-F09), serious mental and behavioral disorders due to psychotropic substances (from ICD-10 F10-F19), schizophrenia, schizotypal and delusional disorders (ICD-10 F20-F29), intellectual disabilities (ICD-10 F70-F79), developmental disorders (ICD-10 F80-F89), systemic atrophies predominantly affecting the central nervous system (ICD-10 G10-G14), other degenerative diseases of the nervous system (ICD-10 G30-G32), cerebrovascular diseases (ICD-10 I60-I69), pregnancy, childbirth and the postpartum period (ICD-10 O00-O99).

Design outcomes

Primary

Measure	Time frame
The primary endpoint is the number of reported time gaps per day. The mean number of daily time gaps will be determined for the intervention group (arm 1) and the control group (arm 2) during periods T0 (weeks 1 and 2) and T1 (weeks 3 and 4). Data will be collected via self-report using the smartphone app "Umfragetool UKBonn".	—

Secondary

Measure	Time frame
In addition, at the beginning of the experiment, sociodemographic parameters will be assessed during the initial examination, and the severity of somatoform dissociative symptoms will be determined using the SDQ-20 (Somatoform Dissociation Questionnaire) and the FNS-ICD-11 (Questionnaire on Functional Neurological Disorders according to ICD-11). The FDS-44 (Dissociative Experience Scale) will be used to assess the frequency of other dissociative symptoms (including amnesia, depersonalization, and derealization). Furthermore, the ITQ (International Trauma Questionnaire) will assess symptoms of any coexisting (complex) post-traumatic stress disorder according to ICD-11. The Vividness of Visual Imagery Questionnaire (VVIQ) will assess the vividness of mental imagery, and the Sense of Agency Scale (SoA Scale) will measure the subjective experience of self-efficacy and action control. A Quality of Life questionnaire (WHOQOL-BREF) assesses subjective well-being in various life domains. After completion of the intervention, the FDS-44, FNS-ICD-11, FSDQ-20, SoA Scale, and WHOQOL-BREF are administered again as part of a pre-post comparison. The German version of all questionnaires is used.	—

Measure

Time frame

In addition, at the beginning of the experiment, sociodemographic parameters will be assessed during the initial examination, and the severity of somatoform dissociative symptoms will be determined using the SDQ-20 (Somatoform Dissociation Questionnaire) and the FNS-ICD-11 (Questionnaire on Functional Neurological Disorders according to ICD-11). The FDS-44 (Dissociative Experience Scale) will be used to assess the frequency of other dissociative symptoms (including amnesia, depersonalization, and derealization). Furthermore, the ITQ (International Trauma Questionnaire) will assess symptoms of any coexisting (complex) post-traumatic stress disorder according to ICD-11. The Vividness of Visual Imagery Questionnaire (VVIQ) will assess the vividness of mental imagery, and the Sense of Agency Scale (SoA Scale) will measure the subjective experience of self-efficacy and action control. A Quality of Life questionnaire (WHOQOL-BREF) assesses subjective well-being in various life domains. After completion of the intervention, the FDS-44, FNS-ICD-11, FSDQ-20, SoA Scale, and WHOQOL-BREF are administered again as part of a pre-post comparison. The German version of all questionnaires is used.

—

Countries

Germany

Contacts

Public ContactMax Christian Pensel

Universitätsklinikum Bonn, Klinik und Poliklinik für Psychiatrie und Psychotherapie

max.pensel@ukbonn.de+49 228 287 16373

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Aug 10, 2026