Explicit self-esteem mediates the relationship between implicit self-esteem and memory biases in major depression

Area of Science:

• Psychology
• Neuroscience
• Cognitive Science

Background:

• Depression is linked to cognitive biases, particularly in self-referent memory.
• Self-esteem, both explicit and implicit, is often diminished in Major Depressive Disorder (MDD).

Purpose of the Study:

• To investigate the relationship between explicit and implicit self-esteem and self-referent memory biases in individuals with MDD.
• To test if implicit self-esteem influences depression-related memory biases through its association with explicit self-esteem.

Main Methods:

• Assessed explicit and implicit self-esteem using the Rosenberg Self-esteem Questionnaire and Go/No-go Association Task, respectively.
• Evaluated memory biases using a self-referent processing task with negative and positive adjectives.
• Compared individuals with MDD (n=38) to never-depressed controls (n=40).

Main Results:

• MDD participants demonstrated lower explicit and implicit self-esteem compared to controls.
• Individuals with MDD showed increased recall of negative self-referent adjectives and decreased recall of positive self-referent information.
• Mediation analyses indicated that explicit self-esteem indirectly affected the link between implicit self-esteem and memory biases in the MDD group.

Conclusions:

• Findings suggest a significant association between implicit and explicit self-esteem in MDD.
• This interplay may contribute to negative cognitive processing and self-referent memory biases observed in depression.