Brain stimulation enhances dispositional mindfulness in PTSD: an exploratory sham-controlled rTMS trial

Area of Science:

• Neuroscience
• Psychiatry
• Psychology

Background:

• Post-traumatic stress disorder (PTSD) is a mental health condition characterized by symptoms like hypervigilance and avoidance.
• Mindfulness therapies and interventions such as pharmacological treatments and brain stimulation show efficacy in managing PTSD.
• Non-invasive repeated transcranial magnetic stimulation (rTMS) targeting the dorsolateral prefrontal cortex (DLPFC) has demonstrated potential in mood regulation and PTSD symptom reduction.

Purpose of the Study:

• To investigate the effects of rTMS on dispositional mindfulness in patients diagnosed with PTSD.
• To explore whether rTMS can modulate specific components of mindfulness, such as nonreactivity.

Main Methods:

• A retrospective chart analysis was conducted on data from a pilot, double-blind, sham-controlled trial.
• Thirty-one participants with PTSD received either active rTMS (1 Hz or 10 Hz) or sham treatment over two weeks.
• Mindfulness was assessed using the Five Facet Mindfulness Questionnaire (FFMQ) at baseline, post-treatment, and three-month follow-up.

Main Results:

• Participants receiving rTMS showed an initial reduction in total FFMQ scores, which did not remain significant after FDR correction.
• A significant improvement in total FFMQ scores and nonreactivity was observed from baseline to the three-month follow-up in the rTMS group.
• These findings suggest a potential delayed onset of mindfulness benefits following rTMS treatment.

Conclusions:

• Preliminary data indicate that rTMS may enhance dispositional mindfulness and its subcomponents in individuals with PTSD.
• Further research is warranted to explore the utility of brain stimulation techniques for improving mindfulness and related outcomes in PTSD.
• The application of rTMS for enhancing mental well-being in broader mental health contexts merits additional investigation.