Combining attentional bias modification with dorsolateral prefrontal rTMS does not attenuate maladaptive attentional...

Area of Science:

• Neuroscience
• Psychology
• Cognitive Science

Background:

• Repetitive transcranial magnetic stimulation (rTMS) over the left dorsolateral prefrontal cortex (DLPFC) can alleviate depressive symptoms and cognitive biases.
• Attentional bias modification (ABM) training shows promise in modulating attentional bias and neuronal activity, potentially complementing rTMS.

Purpose of the Study:

• To investigate if combining rTMS and ABM in a single session can reduce maladaptive attentional processing and improve mood in participants with subclinical depressive symptoms.

Main Methods:

• 122 healthy participants were randomized into four groups: rTMS, ABM, combined rTMS and ABM, or sham treatment.
• Main analyses included 72 participants with subclinical depressive symptoms (BDI-II scores between 9 and 25).
• Evaluated changes in attentional bias, attentional control, and mood following the interventions.

Main Results:

• A single combined rTMS and ABM session did not yield significant changes in attentional bias, attentional control, or mood in the subclinical sample.
• rTMS alone also did not systematically affect attentional bias.
• These null findings suggest no immediate benefit from this combined intervention approach.

Conclusions:

• The combination of a single rTMS session and ABM training did not demonstrate efficacy in altering attentional bias or mood in individuals with subclinical depression.
• The study highlights the need for further investigation into the specific parameters and contexts for effective rTMS and ABM interventions.
• Null findings contribute to the ongoing discourse on the application of ABM training in the context of depression.