The British journal of clinical psychology · 2026
Therapeutic effectiveness of group psychotherapy incorporating cognitive and goal management training in substance use disorder patients under deferred prosecution.
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Liu Po-Chih, Huang Jui-Chien, Chen Kao Chin, Yu Rwei-Ling
Аннотация
OBJECTIVES: This study aimed to evaluate the effectiveness of a structured group psychotherapy program integrating cognitive training (CT) and goal management training (GMT) across neuropsychological, coping and behavioural levels in patients with substance use disorder (SUD) under deferred prosecution.
METHODS: Utilizing a pre-post design, this study analysed data from 35 patients under deferred prosecution who were enrolled in a compulsory addiction treatment programme consisting of 10-session group psychotherapy incorporating CT and GMT. Patients were primarily addicted to heroin, methamphetamine or cannabis. Neuropsychological assessments were conducted before and after the intervention, including the Stroop Colour-Word Test (SCWT) to assess inhibition, the Tower of London-DX (ToL-DX) to assess planning and the Wisconsin Card Sorting Test (WCST) to assess cognitive flexibility. Additionally, participants completed the Daily Executive Behaviours Scale and substance use was tracked via urine tests.
RESULTS: Significant improvements were observed in the SCWT colour-word score (t = -2.78, p = .009, rt = 0.43), ToL-DX execution time (t = 2.40, p = .02, rt = 0.38) and rule violation metrics (Z = -3.34, p < .001, rz = 0.57), as well as WCST perseverative errors (Z = -3.00, p = .003, rz = 0.51); however, no significant changes were found in self-reported assessments or urine tests.
CONCLUSIONS: The combined CT and GMT intervention significantly improved cognitive functions, although it did not lead to a notable reduction in substance use. This approach was associated with measurable improvements in executive functions, while highlighting the limits of short-term cognitive enhancement in altering substance use behaviour.
METHODS: Utilizing a pre-post design, this study analysed data from 35 patients under deferred prosecution who were enrolled in a compulsory addiction treatment programme consisting of 10-session group psychotherapy incorporating CT and GMT. Patients were primarily addicted to heroin, methamphetamine or cannabis. Neuropsychological assessments were conducted before and after the intervention, including the Stroop Colour-Word Test (SCWT) to assess inhibition, the Tower of London-DX (ToL-DX) to assess planning and the Wisconsin Card Sorting Test (WCST) to assess cognitive flexibility. Additionally, participants completed the Daily Executive Behaviours Scale and substance use was tracked via urine tests.
RESULTS: Significant improvements were observed in the SCWT colour-word score (t = -2.78, p = .009, rt = 0.43), ToL-DX execution time (t = 2.40, p = .02, rt = 0.38) and rule violation metrics (Z = -3.34, p < .001, rz = 0.57), as well as WCST perseverative errors (Z = -3.00, p = .003, rz = 0.51); however, no significant changes were found in self-reported assessments or urine tests.
CONCLUSIONS: The combined CT and GMT intervention significantly improved cognitive functions, although it did not lead to a notable reduction in substance use. This approach was associated with measurable improvements in executive functions, while highlighting the limits of short-term cognitive enhancement in altering substance use behaviour.