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The relationship between executive functioning and addictive behavior: new insights from a longitudinal community
Anja Kräplin1, Mohsen Joshanloo2, Max Wolff3,4,5,6
1Work Group Addictive Behaviors, Risk Analysis and Risk Management, Faculty of Psychology, Technische Universität Dresden, Chemnitzer Straße 46, D-01187, Dresden, Germany. anja.kraeplin@tu-dresden.de.
Psychopharmacology
|October 3, 2022
Summary
Lower general executive functioning (GEF) predicts increased substance use quantity and frequency over time, suggesting a role in the progression of addictive behaviors. This challenges direct vulnerability models for addictive disorders.
Area of Science:
- Neuroscience
- Psychology
- Addiction Research
Background:
- Impaired executive functioning is linked to addictive behaviors.
- The longitudinal relationship between executive functioning and addiction progression is not well understood.
Purpose of the Study:
- To investigate the prospective-longitudinal association between general executive functioning (GEF) and addictive behaviors.
- To test if lower GEF predicts more addictive behavior over time.
Main Methods:
- A community sample of 338 young adults (19-27 years) was recruited into substance use disorder, behavioral addiction, or healthy control groups.
- General executive functioning (GEF) was assessed at baseline using nine tasks, and addictive behaviors were measured annually over three years.
- Latent growth curve modeling examined the trajectories of addictive behaviors in relation to baseline GEF.
Main Results:
- No significant baseline association was found between GEF and overall addictive behavior.
- Lower baseline GEF was associated with a greater increase in the quantity of substance use over time.
- Lower baseline GEF was linked to a smaller decrease in the frequency of substance use over time.
Conclusions:
- Diminished executive functions may contribute to a progressive loss of control over substance use.
- Addictive disorders might develop secondary to prolonged periods of risky use, rather than solely from a direct vulnerability.
- Existing etiological models of addiction need refinement to incorporate the evolving role of executive functioning.
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