Efficacy and executive function of solution-focused brief therapy on adolescent depression

Area of Science:

• Neuroscience
• Psychiatry
• Clinical Psychology

Background:

• Major Depressive Disorder (MDD) significantly impacts adolescent mental health and cognitive functions.
• Executive function deficits are common in adolescents with MDD, affecting daily life and treatment outcomes.
• Exploring novel therapeutic approaches like Solution-Focused Brief Therapy (SFBT) is crucial for adolescent mental health.

Purpose of the Study:

• To evaluate the efficacy of SFBT in treating MDD in adolescents.
• To assess the impact of SFBT on executive function in this population.
• To investigate the neurobiological changes associated with SFBT using fNIRS.

Main Methods:

• A randomized controlled trial involving 129 adolescents diagnosed with MDD.
• Comparison between SFBT group (n=28) and an Active Control (AC) group receiving psychodynamic psychotherapy (n=25).
• Assessment of depressive symptoms (PHQ-9), anxiety symptoms (GAD-7), executive function (VFT), and prefrontal cortex activity (fNIRS) at multiple time points.

Main Results:

• SFBT significantly reduced depressive and anxiety symptoms from the third intervention onwards.
• Adolescents in the SFBT group showed significant improvements in verbal fluency task performance.
• fNIRS data indicated increased oxyhemoglobin levels in the dorsolateral prefrontal cortex (DLPFC) in the SFBT group compared to the AC group.

Conclusions:

• SFBT demonstrates potential as an effective treatment for adolescent MDD.
• SFBT may improve executive function and associated neural activity in adolescents with depression.
• Further research is warranted to confirm these findings and explore long-term effects.