Effects of Online Cognitive Control Training on Rumination and Depressive Symptoms

Depression Clinical Trial

Official title:
"Ein Training Kognitiver Kontrolle Emotionaler Inhalte im Arbeitsgedächtnis: Effekte Auf Die Häufigkeit Und Auswirkungen Von Grübeln Bei Depressiven Patienten" (English: Training Cognitive Control Over Emotional Information in Working Memory: Effects on the Frequency of Rumination and Its Impact on Mood in the Daily Lives of Depressed Patients)

Status Completed

Clinical Trial Summary

The present study examines whether a computerized cognitive control training as compared to a placebo (fake) training will reduce the frequency of depressive rumination in depressed individuals. Rumination has been identified as a major risk factor for the onset and recurrence of depressive episodes and it has been suggested that it is linked to deficits in cognitive control functions. It is thus expected that training cognitive control will reduce the frequency of rumination as well as ameliorate its detrimental effect on negative mood states.

Clinical Trial Description

Rumination has been shown to intensify dysphoric mood and is one of the best researched risk factors for the onset and recurrence of depressive episodes. Accumulating evidence suggests that the tendency to ruminate is linked to impairments in cognitive control functions, especially to problems discarding no longer relevant negative material from working memory (=working memory updating). The aim of the present study is to examine whether training to update emotional material in working memory will have an effect on the frequency of using rumination as well as on the impact of rumination on mood in the daily lives of clinically depressed participants. Participants will be randomly assigned to 10 sessions of either online cognitive control training or an online placebo condition. The ability to update emotional material in working memory will be assessed pre and post training by two computer tasks (close and far transfer tasks). The effects of the training on daily rumination and the dynamics between daily mood and rumination will be assessed pre- and post-training, as well as at 3-months follow-up using ambulatory assessment (via smartphone app). It is expected that individuals in the training as compared to the placebo group will show a greater reduction in rumination frequency as well as a reduction in the negative impact of rumination on mood. ;

Study Design

Related Conditions & MeSH terms

Depression
Feeding and Eating Disorders of Childhood
Rumination - Thoughts

Clinical Trial Details

NCT number	NCT03011216
Study type	Interventional
Source	Freie Universität Berlin
Contact
Status	Completed
Phase	N/A
Start date	July 1, 2018
Completion date	February 1, 2021

View Details

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.