Working Memory Training for Substance Dependent Individuals
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About
Background: Substance abusers show impaired working memory (WM) functioning. Promising findings show training WM results in an improved working memory capacity (WMC) and a decrease of clinical symptoms in a range of disorders, including alcohol addiction.
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.
Enrollment
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Inclusion criteria
- Substance dependency: cocaine, cannabis or alcohol
Exclusion criteria
- Age below 16 or above 67
- Current psychosis
- Neurological complaints
Trial design
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Interventional model
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180 participants in 2 patient groups, including a placebo group
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Data sourced from clinicaltrials.gov
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