Working Memory Training for Substance Dependent Individuals
NCT ID: NCT02119949
Last Updated: 2014-08-21
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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COMPLETED
NA
180 participants
INTERVENTIONAL
2012-05-31
2014-06-30
Brief Summary
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Aim: To test the effect of a WM training in addition to treatment as usual (TAU) on substance use, craving, WMC, impulsivity, attention bias and psychopathology.
Design: A randomized double-blind placebo-controlled trial with a parallel group design. The WM training adapted to participants' WMC whereas the placebo training consisted of non-adaptive easy versions of these tasks.
Setting: Two departments of an addiction treatment clinic in Rotterdam, the Netherlands.
Participants: 120 inpatients diagnosed with an alcohol, cannabis or cocaine dependency who were in treatment as usual .
Measurements: Primary outcome measures: Substance use and craving. Secondary outcome measures: WMC, impulsivity, attention bias and psychopathology. Participants were assessed before and after 24 sessions of WM training as well as two months after the training.
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Detailed Description
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Conditions
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Study Design
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RANDOMIZED
PARALLEL
TREATMENT
DOUBLE
Study Groups
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Working memory training
Working memory training
The working memory training started the day after the pre-test and included 24 sessions of 25 minutes each. Participants trained, under supervision of an experimenter, on weekdays in the clinic. The training consisted of two tasks: the Symmetry Span and the N-back Task. Participants in the experimental group executed versions of these task that adapt to their working memory capacity, to train their working memory optimally.
Placebo training
Placebo training
The working memory training started the day after the pre-test and included 24 sessions of 25 minutes each. Participants trained, under supervision of an experimenter, on weekdays in the clinic. The training consisted of two tasks: the Symmetry Span and the N-back Task. Participants in the placebo group executed easy versions of these task that did not adapt to their level, to prevent training.
Interventions
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Working memory training
The working memory training started the day after the pre-test and included 24 sessions of 25 minutes each. Participants trained, under supervision of an experimenter, on weekdays in the clinic. The training consisted of two tasks: the Symmetry Span and the N-back Task. Participants in the experimental group executed versions of these task that adapt to their working memory capacity, to train their working memory optimally.
Placebo training
The working memory training started the day after the pre-test and included 24 sessions of 25 minutes each. Participants trained, under supervision of an experimenter, on weekdays in the clinic. The training consisted of two tasks: the Symmetry Span and the N-back Task. Participants in the placebo group executed easy versions of these task that did not adapt to their level, to prevent training.
Eligibility Criteria
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Inclusion Criteria
Exclusion Criteria
* Current psychosis
* Neurological complaints
16 Years
67 Years
ALL
No
Sponsors
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Erasmus Medical Center
OTHER
Responsible Party
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Ingmar Franken
Professor
Locations
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Bouman Clinic
Rotterdam, South Holland, Netherlands
Countries
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Other Identifiers
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2
Identifier Type: -
Identifier Source: org_study_id
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