Substance abuse and comorbid problems in adolescents with mild intellectual disability or borderline intellectual functioning.

Hulsman, Daan

Substance abuse and comorbid problems in adolescents with mild intellectual disability or borderline intellectual functioning.

Files

2019 Hulsmans D.H.G. s4660676 Thesis.pdf (1001.92 KB)

Authors

Hulsman, Daan

Issue Date

2019-06-29

Language

en

URI

https://theses.ubn.ru.nl/handle/123456789/16489

Abstract

Adolescents with behavioural problems and mild intellectual disability or borderline intellectual functioning (MID-BIF) are at increased risk for problematic substance use (SU) and developing substance use disorder (SUD). Two interventions that targeted personality risk profiles to reduce SU and comorbid problems in MID-BIF adolescents were examined, each with a different approach: a quasi-experiment (study 1, N = 66) and a single-case study with daily diary sampling (study 2, 75 days). Intervention effects on- and interrelatedness between SU, affect, behavioural problems were examined to assess if and how SU changes over time. Both studies demonstrate intervention effectiveness in reducing SU frequency, but not in comorbid problems. Whereas study 1 does not show interactions between SU and comorbid problems, study 2 demonstrates that SUD in an MID-BIF adolescent is a complex dynamical system of continuously interacting affective states and behaviours, in which identifiable early warning signals precede sudden SU improvements or relapse. Keywords: substance use, substance use disorder, intellectual disability, adolescent, intervention studies, complex systems.