Non-invasive brain stimulation and the autonomic nervous system

Area of Science:

• Neuroscience
• Autonomic Nervous System Research
• Brain Stimulation Techniques

Background:

• Non-invasive brain stimulation (NIBS) methods like repetitive transcranial magnetic stimulation (rTMS) and transcranial direct current stimulation (tDCS) modulate neural networks.
• NIBS can potentially influence the autonomic nervous system (ANS), and ANS measures can elucidate NIBS mechanisms.
• Understanding the interplay between NIBS and ANS is crucial for both basic research and therapeutic applications.

Purpose of the Study:

• To systematically review studies simultaneously investigating NIBS and ANS.
• To categorize existing research based on the direction of influence and subject population (healthy vs. patients).
• To identify limitations and propose future directions for NIBS research on autonomic regulation.

Main Methods:

• Systematic literature review of 44 articles.
• Categorization of studies into four thematic groups: NIBS effects on ANS, NIBS for ANS research, ANS for NIBS mechanisms, and study populations.
• Analysis of findings regarding the simultaneous application of NIBS and ANS measures.

Main Results:

• No conclusive evidence was found regarding the effects of NIBS on the ANS.
• Significant heterogeneity across the reviewed studies limited the ability to draw firm conclusions.
• The reviewed literature highlights the potential but also the challenges in this research area.

Conclusions:

• Further development and standardization of NIBS/ANS studies are needed.
• NIBS holds promise for investigating cortical mechanisms of autonomic regulation.
• Future research could lead to therapeutic modulation of autonomic activity using NIBS.