اثربخشي درمان عاطفه مثبت بر بي‌لذتي، عواطف مثبت و منفي، شدت افسردگي و خودكشي‌گرايي در افراد داراي اختلال افسردگي اساسي

Positive affect treatment , Anhedonia , Positive an‎d negative affects , Suicidality , Major depressive disorder

Effectiveness of positive affect treatment on anhedonia, positive an‎d negative affects, severity of depression an‎d suicidality in individuals with major depressive disorder

روان شناسي

One of the common an‎d disabling mood disorders that many individuals experience during their lifetime is major depressive disorder (MDD). Individuals with this disorder often present, alongside other clinical symptoms, with problems such as anhedonia, increased negative affect, an‎d decreased positive affect, which are also associated with other significant symptoms, particularly suicidal thoughts an‎d behaviors. However, existing treatments place limited direct emphasis on modifying some of these clinical constructs, particularly anhedonia an‎d positive affect. One of the recently introduced therapies aimed at addressing them is Positive Affect Treatment (PAT). Although international research has only recently begun to examine its effectiveness, in Iran this treatment has not yet been eva‎luated. Accordingly, the present study aimed to investigate the effectiveness of PAT on anhedonia, positive an‎d negative affect, depression severity, an‎d suicidality in individuals with MDD. For this purpose, a single-case experimental design with multiple baselines was employed. The statistical population consisted of all individuals with MDD who sought services at private counseling an‎d treatment centers in Isfahan during the first half of 1404. From this population, three participants were selec‎ted using purposeful non-ran‎dom sampling. Research instruments included the Temporal Experience of Pleasure Scale (TEPS), the Positive an‎d Negative Affect Schedule (PANAS), the Patient Health Questionnaire (PHQ-9), an‎d the Suicidal Ideation an‎d Behavior Scale (SIBS). Data were analyzed using visual analysis through charts, as well as indices such as Mean Percentage Improvement (MPI), effect size, Reliable Change Index (RCI), Percentage of Overlapping Data (POD), an‎d Percentage of Non-overlapping Data (PND). The visual analysis of the data indicated that PAT had a significant impact on reducing anhedonia, negative affect, depression severity, an‎d suicidality, while also enhancing positive affect among individuals with MDD. These findings suggest that PAT may serve as an effective intervention for improving the psychological condition of individuals with MDD. Furthermore, the results can contribute to the development of treatment an‎d support programs for this population.

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