Abstract
Background & Objectives: Multiple sclerosis (MS) is a chronic disease with a rising prevalence. MS is associated with inflammation and loss of myelin sheath in many areas of the central nervous system. People who suffer from chronic diseases such as MS, in addition to physical problems, suffer from mental and emotional symptoms. Therefore, it negatively impacts not only their physical health, but also their overall quality of life, including their cognitive flexibility and sleep quality. Transdiagnostic emotion regulation has been considered one of the effective treatments based on the common mechanisms of therapeutic interventions. Considering the prevalence of MS, the present study aims to investigate the effectiveness of transdiagnostic group therapy based on emotion regulation on cognitive flexibility and sleep quality in patients with MS.
Methods: This quasi–experimental study employed a pretest–posttest research approach with experimental and control groups. The statistical population comprised all the patients with MS who are members of the MS association of Jahrom City, Iran. The statistical sample included 30 people after considering the inclusion and exclusion criteria. Eligible patients were invited to participate in the study in an orientation meeting following the principles of confidentiality of their information. The control group did not have an intervention, and the study questionnaires were completed before and after the intervention in both groups. The patients were placed in two equal groups of 15 people. The Cognitive Flexibility Inventory (Dennis & Vander Wal, 2010) and Pittsburgh Sleep Quality Index (Buysse et al., 1989) were used to collect data. In this research, the transdiagnosis therapy method designed by Barlow et al. (2011) was implemented in 12 sessions, each lasting 60 minutes. At the descriptive statistics level, we used frequency, percentage, mean, and standard deviation, and at the level of inferential statistics, univariate analysis of covariance at a significance level of 0.05 in SPSS–22 software.
Results: The results of the univariate analysis of covariance showed differences between the control and experimental groups in the posttest period regarding cognitive flexibility (p=0.004) and sleep quality (p<0.001). The effect of the intervention on cognitive flexibility was 0.949. The impact of the intervention on sleep quality was 0.663.
Conclusions: Based on the findings of this research, transdiagnostic group therapy based on emotion regulation can help people with MS to increase their cognitive flexibility and improve their sleep quality.
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