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Individualized rTMS Treatment for Depression using an fMRI-Based Targeting Method
Published on: August 2, 2021
Transient acute depressive state induced by subthalamic region stimulation
Giorgio Tommasi1, Michele Lanotte, Umberto Albert
1Institute of Neurology, Department of Neurosciences, University of Turin, Italy. giorgio.tommasi@libero.it
Journal of the Neurological Sciences
|August 8, 2008
Summary
High frequency stimulation (HFS) of the subthalamic nucleus (STN) in Parkinson's patients can cause temporary depression. Mood changes adapted over time, suggesting neural plasticity.
Area of Science:
- Neuroscience
- Neurology
- Psychiatry
Background:
- Parkinson's disease (PD) is a neurodegenerative disorder affecting motor control.
- Deep brain stimulation (DBS) of the subthalamic nucleus (STN) is an established treatment for PD.
- The subthalamic region's role in mood regulation is not fully understood.
Observation:
- A psychiatrically healthy Parkinson's disease patient experienced acute, transient depressive states.
- These mood changes coincided with high frequency stimulation (HFS) of the STN and adjacent structures.
- The patient's depressive symptoms improved over time despite continued stimulation.
Findings:
- The subthalamic region is critical for modulating human behavior, particularly mood.
- HFS of the STN can elicit depressive states in vulnerable individuals.
- Neural adaptation, possibly due to reduced micro-trauma and HFS-induced plasticity, underlies mood stabilization.
Implications:
- This case highlights the complex interplay between STN stimulation and mood regulation in Parkinson's disease.
- Understanding these effects is crucial for optimizing DBS therapy and managing psychiatric side effects.
- Further research into subthalamic neurocircuitry and plasticity may reveal new therapeutic targets for mood disorders.
