A Personalized Approach to Effects of Affective Bias Modification on Symptom Change and Rumination
NCT ID: NCT04137367
Last Updated: 2025-02-05
Study Results
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View full resultsBasic Information
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COMPLETED
NA
108 participants
INTERVENTIONAL
2019-11-19
2022-04-03
Brief Summary
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Detailed Description
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Conditions
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Study Design
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RANDOMIZED
PARALLEL
TREATMENT
TRIPLE
Study Groups
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Active Affective Bias Modification
Computer based Affective Bias Modification
Affective bias modification
In the Affective bias modification (ABM) procedure, paired stimuli (e.g. a negative and a positive facial expression) are presented on a laptop screen, followed by one or two probes (dots) appearing in the spatial location of one of the stimuli. Participants are then required to press one of two buttons as quickly as possible to indicate the number of dots in the probe. Stimuli presentation time is 50% 500 ms and 50 % 1000 ms (evenly distributed throughout the task). In total, the ABM will comprise 90 trials of paired images of faces of different valences. In the active condition, the probe appears at the location of the most positive stimuli of each pair in 87 % of trials (encouraging a positive affective bias). Participants will do ABM in their homes (approx. 5 min.) twice a day for two weeks (28 sessions) using laptop computers provided by us.
Sham Affective Bias Modification
Computer based sham Affective Bias Modification
Sham Affective bias modification
In the Affective bias modification (ABM) procedure, paired stimuli (e.g. a negative and a positive facial expression) are presented on a laptop screen, followed by one or two probes (dots) appearing in the spatial location of one of the stimuli. Participants are then required to press one of two buttons as quickly as possible to indicate the number of dots in the probe. Stimuli presentation time is 50% 500 ms and 50 % 1000 ms (evenly distributed throughout the task). In total, the ABM will comprise 90 trials of paired images of faces of different valences. In the sham condition, the probe appears at the location of the most positive stimuli of each pair in 50 % of trials (no contingency between facial expressions shown and the probe location). Participants will do ABM in their homes (approx. 5 min.) twice a day for two weeks (28 sessions) using laptop computers provided by us.
Assesment only
Only assessments are conducted
No interventions assigned to this group
Interventions
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Affective bias modification
In the Affective bias modification (ABM) procedure, paired stimuli (e.g. a negative and a positive facial expression) are presented on a laptop screen, followed by one or two probes (dots) appearing in the spatial location of one of the stimuli. Participants are then required to press one of two buttons as quickly as possible to indicate the number of dots in the probe. Stimuli presentation time is 50% 500 ms and 50 % 1000 ms (evenly distributed throughout the task). In total, the ABM will comprise 90 trials of paired images of faces of different valences. In the active condition, the probe appears at the location of the most positive stimuli of each pair in 87 % of trials (encouraging a positive affective bias). Participants will do ABM in their homes (approx. 5 min.) twice a day for two weeks (28 sessions) using laptop computers provided by us.
Sham Affective bias modification
In the Affective bias modification (ABM) procedure, paired stimuli (e.g. a negative and a positive facial expression) are presented on a laptop screen, followed by one or two probes (dots) appearing in the spatial location of one of the stimuli. Participants are then required to press one of two buttons as quickly as possible to indicate the number of dots in the probe. Stimuli presentation time is 50% 500 ms and 50 % 1000 ms (evenly distributed throughout the task). In total, the ABM will comprise 90 trials of paired images of faces of different valences. In the sham condition, the probe appears at the location of the most positive stimuli of each pair in 50 % of trials (no contingency between facial expressions shown and the probe location). Participants will do ABM in their homes (approx. 5 min.) twice a day for two weeks (28 sessions) using laptop computers provided by us.
Other Intervention Names
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Eligibility Criteria
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Inclusion Criteria
Exclusion Criteria
18 Years
65 Years
ALL
No
Sponsors
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Extrastiftelsen
OTHER
Diakonhjemmet Hospital
OTHER
University of Oxford
OTHER
University of Oslo
OTHER
Responsible Party
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Nils Inge Landrø
Professor
Principal Investigators
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Nils Inge Landrø, Dr.Philos
Role: PRINCIPAL_INVESTIGATOR
University of Oslo
Locations
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Department of Psychology
Oslo, , Norway
Countries
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References
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Bo R, Kraft B, Joormann J, Jonassen R, Harmer CJ, Landro NI. Cognitive predictors of stress-induced mood malleability in depression. Anxiety Stress Coping. 2024 Mar;37(2):278-292. doi: 10.1080/10615806.2023.2255531. Epub 2023 Sep 11.
Bo R, Kraft B, Pedersen ML, Joormann J, Jonassen R, Osnes K, Harmer CJ, Landro NI. The effect of attention bias modification on depressive symptoms in a comorbid sample: a randomized controlled trial. Psychol Med. 2023 Oct;53(13):6389-6396. doi: 10.1017/S0033291722003956. Epub 2023 Jan 9.
Provided Documents
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Document Type: Study Protocol and Statistical Analysis Plan
Related Links
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Other Identifiers
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2019/FO249225
Identifier Type: -
Identifier Source: org_study_id
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