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Published in: BMC Psychiatry 1/2019

Open Access 01-12-2019 | Affective Disorder | Research article

Effects of Attentional Bias Modification on residual symptoms in depression: a randomized controlled trial

Authors: Rune Jonassen, Catherine J. Harmer, Eva Hilland, Luigi A. Maglanoc, Brage Kraft, Michael Browning, Tore C. Stiles, Vegard Ø. Haaland, Torkil Berge, Nils Inge Landrø

Published in: BMC Psychiatry | Issue 1/2019

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Abstract

Background

Following treatment, many depressed patients have significant residual symptoms. However, large randomised controlled trials (RCT) in this population are lacking. When Attention bias modification training (ABM) leads to more positive emotional biases, associated changes in clinical symptoms have been reported. A broader and more transparent picture of the true advantage of ABM based on larger and more stringent clinical trials have been requested. The current study evaluates the early effect of two weeks ABM training on blinded clinician-rated and self-reported residual symptoms, and whether changes towards more positive attentional biases (AB) would be associated with symptom reduction.

Method

A total of 321 patients with a history of depression were included in a preregistered randomized controlled double-blinded trial. Patients were randomised to an emotional ABM paradigm over fourteen days or a closely matched control condition. Symptoms based on the Hamilton Rating Scale for Depression (HRSD) and Beck Depression Inventory II (BDI-II) were obtained at baseline and after ABM training.

Results

ABM training led to significantly greater decrease in clinician-rated symptoms of depression as compared to the control condition. No differences between ABM and placebo were found for self-reported symptoms. ABM induced a change of AB towards relatively more positive stimuli for participants that also showed greater symptom reduction.

Conclusion

The current study demonstrates that ABM produces early changes in blinded clinician-rated depressive symptoms and that changes in AB is linked to changes in symptoms. ABM may have practical potential in the treatment of residual depression.

Trial registration

ClinicalTrials.gov ID: NCT02658682 (retrospectively registered in January 2016).
Appendix
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Metadata
Title
Effects of Attentional Bias Modification on residual symptoms in depression: a randomized controlled trial
Authors
Rune Jonassen
Catherine J. Harmer
Eva Hilland
Luigi A. Maglanoc
Brage Kraft
Michael Browning
Tore C. Stiles
Vegard Ø. Haaland
Torkil Berge
Nils Inge Landrø
Publication date
01-12-2019
Publisher
BioMed Central
Published in
BMC Psychiatry / Issue 1/2019
Electronic ISSN: 1471-244X
DOI
https://doi.org/10.1186/s12888-019-2105-8

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