This work was undertaken to assess the feasibility of using cortical signals to control motor prostheses in paraplegics. Signals would be required which could be quickly and reliably detected, and remain unchanged after spinal transection. For this purposa arrays of small recording eleotrodes ware placed over the precentral gyrus beneath the dura meter. In baboons, such chronically implanted eleotrodes (0.5 mm diemeter) recorded a wide range of electrical activity. Only when a frequency band 80 - 250 Hz was selected could signals be detected in the electrocorticogram which were movement-related, consistently stable, and seen to precede specific movements of the contralateral limbs.
| Identifer | oai:union.ndltd.org:bl.uk/oai:ethos.bl.uk:582012 |
| Date | January 1974 |
| Creators | Craggs, Michael D. |
| Publisher | King's College London (University of London) |
| Source Sets | Ethos UK |
| Detected Language | English |
| Type | Electronic Thesis or Dissertation |
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