Transcranial magnetic stimulation in brain injury

Area of Science:

• Neuroscience
• Neurology
• Rehabilitation Medicine

Background:

• Transcranial magnetic stimulation (TMS) is a long-established diagnostic tool for assessing cortical excitability.
• Recent advancements highlight TMS as a therapeutic neuromodulation technique.
• Applications are being explored for various brain injuries, including stroke, traumatic brain injury, and anoxic brain injury.

Purpose of the Study:

• To investigate the diagnostic and therapeutic applications of TMS in the context of brain injury.
• To understand how TMS can be used to explore changes in cortical excitability and interhemispheric interactions post-brain injury.
• To evaluate the potential of TMS for neuromodulation and influencing recovery.

Main Methods:

• Utilizing transcranial magnetic stimulation (TMS) for diagnostic assessment of cortical excitability.
• Employing repetitive TMS (rTMS) as a therapeutic neuromodulation tool.
• Analyzing changes in cortical excitability and interhemispheric interactions following different types of brain injury.

Main Results:

• Brain injury leads to decreased cortical excitability and altered interhemispheric interactions.
• Repetitive TMS (rTMS) can restore interhemispheric balance by modulating cortical excitability (inhibitory or excitatory frequencies).
• Promising results observed in motor recovery, aphasia, and visuospatial neglect, though seizure risk limits patient eligibility.

Conclusions:

• TMS serves as a valuable non-invasive tool for diagnosing brain injury sequelae.
• It aids in studying the underlying mechanisms of neural recovery.
• TMS represents a promising non-invasive neuromodulation strategy for enhancing post-lesional recovery.