PSYC 405 Lecture Notes - Lecture 12: Magnetic Resonance Imaging, Deep Brain Stimulation, Neurostimulation
25 Mar 2020
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Document Summary
Blocks electrical signals from targeted areas in the brain. Surgically implanted, battery-operated medical device called a neurostimulator. Delivers electrical stimulation to targeted areas in brain that control movement. Blocking the abnormal nerve signals that cause tremor and pd symptoms. A neurosurgeon uses magnetic resonance imaging (mri) or computed tomography (ct) scanning. Identify and locate the exact target in the brain where electrical nerve signals generate the pd symptoms. Involves a small wire that monitors the activity of nerve cells in the target area. More specifically identifies the precise brain target to be stimulated. Inserted through small opening in skull and implanted in brain. Tip of electrode positioned within targeted brain area. The extension is insulated wire passed under the skin of the head, neck, and shoulder, connecting lead to neurostimulator. The neurostimulator (the "battery pack") is the third component. Usually implanted under skin near the collarbone.
