To assess whether an intervention based on positive future mental time travel will increase positive affect in a sample of patients with a depressive disorder.
ID
Source
Brief title
Condition
- Mood disorders and disturbances NEC
Synonym
Research involving
Sponsors and support
Intervention
Outcome measures
Primary outcome
The study is based on self-report questionnaires. The primary parameter is the
score on the Positive and Negative Affect Scale (PANAS) before intervention,
after and at follow-up.
Secondary outcome
Secondary objectives are to assess changes in emotion regulation strategies and
depressive symptoms used before and after the intervention. Parameters are
score on Response to positive affect scale (RPA), Ruminative response schale
(RRS), Emotion regulation profile (ERP), Inventory of depressive symptoms
(IDS-SR). Futhermore the Subjective Happiness scale (SHS) is used to replicate
the measurement in the original study of Quoidbach and colleagues (2009) and
the Questionaire upon mental imagery (QMI) to measure individual differences in
imagery ability.
Background summary
Increases in positive emotions have repeatedly been shown to be more important
than decreases in negative emotions when it comes to well-being, prevention of,
and recovery from depression (Cohn et al., 2009; Geschwind et al., 2010;
Geschwind et al., 2011). However most studies are based on a sample of
students, general population and patients with mild depressive symptoms. In the
current study the effect of an intervention based on positive future mental
time travel will be tested in patients with a major depressive disorder. This
intervention was found to increase happiness in a general population sample
(Quoidbach et al., 2009).
Study objective
To assess whether an intervention based on positive future mental time travel
will increase positive affect in a sample of patients with a depressive
disorder.
Study design
After informed consent participants will be randomly assigned to one of three
intervention conditions or a non-intervention control condition. The study will
take place in time after intake and before starting treatment as usual (e.g.
normal waiting period).
Intervention
In three intervention conditions in which participants will be asked to imagine
four different events (positive/negative/neutral events respectively) that
could possible happen to them the day after the intervention for 15 consecutive
days. One group will receive no intervention.
Study burden and risks
The burden of participation in this study will be filling in questionnaires at
T1, T2 and T3 of 30 minutes each time. Furthermore an intervention of
envisioning events for the next day of 15 minutes for 15 consecutive days. This
makes a total investment of 315 minutes (5 hours and 15 minutes) for the
participants in an intervention condition. The study will not cause any serious
adverse events. Possible imagining negative future events will result in some
negative affect. However this is expected to be minimal and temporary and will
not lead to serious negative effects. Participants are able to contact the
researchers, their therapist or an independent expert. Furthermore they may
terminate their participation in the study at any time, without providing a
reason.
Heidelberglaan 1
Utrecht 3584 CS
NL
Heidelberglaan 1
Utrecht 3584 CS
NL
Listed location countries
Age
Inclusion criteria
- Main diagnosis of major depressive disorder
- Daily internet access on a desktop computer in a private environment
- Sufficient Dutch reading and writing skills
Exclusion criteria
- High suicidal risk
- Psychotic symptoms
Design
Recruitment
Followed up by the following (possibly more current) registration
No registrations found.
Other (possibly less up-to-date) registrations in this register
No registrations found.
In other registers
| Register | ID |
|---|---|
| CCMO | NL55847.041.15 |