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Electrical brain stimulators that apply stimuli to specific areas of a patient\'s brain (i.e., cerebrum, cerebellum) during psychiatric treatments. These stimulators typically consist of an external pulse generator and electrodes. The stimulating pulses are applied via electrode arrays placed upon the cortex or through the electrode tips of very fine leads implanted deeply in the cerebellar nuclei. Psychiatric therapy stimulators are used to treat psychiatric disorders such as depression, anxiety, mania, and insomnia.
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