OnExamination MRCPsych Part A (Updated Feb 2023) (PDF Book)
Pass your exam with our MRCPsych Part A resource
Get prepared with our extensive collection of 970+ practice questions. Our experts have carefully crafted these questions to align with the current curriculum, covering all the essential topics and formats you’ll encounter on exam day.
Elevate your revision with high-quality questions and detailed explanations
Sample Question Which of the following options is a target for deep brain stimulation (DBS) in the treatment of Parkinson’s disease?
- Caudate nucleus
- Globus pallidus interna
- Internal capsule
- Subcallosal cingulate
- Vagus nerve
Key Learning Point: The primary targets for deep brain stimulation in the treatment of Parkinson’s disease are the subthalamic nucleus and globus pallidus interna.
Explanation: Deep brain stimulation (DBS) is a treatment option for Parkinson’s disease. The two main sites for DBS in Parkinson’s disease are the subthalamic nucleus and globus pallidus interna. The subcallosal cingulate was initially investigated as a potential target for DBS in the treatment of treatment-resistant depression (TRD). Vagal nerve stimulation has also been utilized for TRD. Targeting the anterior limb of the internal capsule is a neurosurgical treatment for refractory obsessive-compulsive disorder (OCD) and TRD. Although associated with Parkinson’s disease, the caudate nucleus is not a primary treatment target for DBS.
