Claims
- 1. A method comprising:
measuring a local field potential response from neural activity in a subject; and generating a signal indicative of an intended movement in response to said measured local field potential response.
- 2. The method of claim 1, further comprising:
cueing a subject to perform a plurality of movements; measuring a local field potential response in response to each of said movements; and storing the local field potential response corresponding to each of said movements in a memory device.
- 3. The method of claim 2, wherein generating the signal comprises:
comparing the measured local field potential response to a plurality of the stored local field potential responses; and determining the intended movement in response to said comparison.
- 4. The method of claim 1, wherein the signal comprises an electric signal.
- 5. The method of claim 1, wherein the measuring is invasive.
- 6. The method of claim 1, wherein the local field potential response has a temporal structure approximately localized in time and frequency.
- 7. The method of claim 6, further comprising estimating the temporal structure of using spectral analysis.
- 8. The method of claim 1, further comprising measuring a spike response having a temporal structure approximately localized in time and frequency, and wherein the signal is generated in response to the measured local field potential response and the measured spike response.
- 9. The method of claim 1, wherein the intended movement comprises a reach.
- 10. The method of claim 9, wherein the reach comprises a target.
- 11. The method of claim 9, wherein the reach comprises a trajectory.
- 12. The method of claim 9, wherein the intended movement comprises a grasp.
- 13. The method of claim 1, wherein the intended movement comprises a saccade.
- 14. The method of claim 1, wherein the intended movement comprises a head movement.
- 15. The method of claim 1, wherein the intended movement comprises a smooth pursuit eye movement.
- 16. The method of claim 1, wherein the intended movement comprises a leg movement.
- 17. The method of claim 1, wherein the intended movement comprises a go signal.
- 18. The method of claim 1, wherein the intended movement comprises a scrub signal.
- 19. The method of claim 1, wherein the neural activity comprises activity in the sensory motor cortex.
- 20. The method of claim 1, wherein the neural activity comprises activity in the parietal reach region.
- 21. The method of claim 1, wherein the neural activity comprises activity in the anterior intraparietal cortex.
- 22. The method of claim 1, wherein the neural activity comprises activity in the lateral intraparietal cortex.
- 23. The method of claim 1, wherein the neural activity comprises activity area 5 of the superior parietal lobule.
- 24. The method of claim 1, wherein the neural activity comprises activity in frontal cortical areas involved in movement, said area selected from the motor cortex, the ventral and dorsal premotor cortex, the supplementary motor area, the supplementary eye field, the frontal eye field, the prefrontal cortex, and the pre-supplementary motor area.
- 25. The method of claim 1, wherein the neural activity comprises activity in the ventral intraparietal cortex.
- 26. The method of claim 1, wherein the neural activity comprises activity in the medial superior temporal cortex.
- 27. The method of claim 1, further comprising decoding a direction in a gamma frequency band of the local field potential response.
- 28. The method of claim 1, further comprising decoding a logical signal in at least one of a gamma frequency band and a beta frequency band of the local field potential response.
- 29. The method of claim 28, wherein the logical signal comprises a “go” signal.
- 30. The method of claim 6, wherein the temporal structure is represented as a spectrogram.
- 31. A method comprising:
measuring neural activity; analyzing a time and frequency localized representation of the neural activity; and generating a signal indicative of an intended movement in response to said analysis.
- 32. The method of claim 31, wherein the neural activity comprises measuring a local field potential.
- 33. The method of claim 31, wherein the neural activity comprises unsorted spiking activity.
- 34. The method of claim 31, wherein the neural activity comprises sorted spiking activity.
- 35. The method of claim 31, wherein the measuring comprises measuring an extracellular potential.
CROSS-REFERENCE TO RELATED APPLICATION
[0001] This application is a divisional and claims the benefit of priority under 35 USC 120 of U.S. application Ser. No. 09/738,875 filed Dec. 14, 2000, which claims benefit of the priority of U.S. Provisional Application Serial No. 60/170,861 filed Dec. 14, 1999, and entitled “A Neural Prosthetic Using Temporal Structure in the Local Field Potential”.
Provisional Applications (1)
|
Number |
Date |
Country |
|
60170861 |
Dec 1999 |
US |
Divisions (1)
|
Number |
Date |
Country |
Parent |
09738875 |
Dec 2000 |
US |
Child |
10304343 |
Nov 2002 |
US |