Multi-state decoding of point-and-click control signals from motor cortical activity in a human with tetraplegia
2007
Conference Paper
ps
Basic neural-prosthetic control of a computer cursor has been recently demonstrated by Hochberg et al. [1] using the BrainGate system (Cyberkinetics Neurotechnology Systems, Inc.). While these results demonstrate the feasibility of intracortically-driven prostheses for humans with paralysis, a practical cursor-based computer interface requires more precise cursor control and the ability to “click” on areas of interest. Here we present a practical point and click device that decodes both continuous states (e.g. cursor kinematics) and discrete states (e.g. click state) from single neural population in human motor cortex. We describe a probabilistic multi-state decoder and the necessary training paradigms that enable point and click cursor control by a human with tetraplegia using an implanted microelectrode array. We present results from multiple recording sessions and quantify the point and click performance.
Author(s): | Kim, S.-P. and Simeral, J. and Hochberg, L. and Donoghue, J. P. and Friehs, G. and Black, M. J. |
Book Title: | The 3rd International IEEE EMBS Conference on Neural Engineering |
Pages: | 486--489 |
Year: | 2007 |
Month: | May |
Department(s): | Perzeptive Systeme |
Bibtex Type: | Conference Paper (inproceedings) |
Paper Type: | Conference |
Links: |
pdf
|
BibTex @inproceedings{Kim:NE:2007, title = {Multi-state decoding of point-and-click control signals from motor cortical activity in a human with tetraplegia}, author = {Kim, S.-P. and Simeral, J. and Hochberg, L. and Donoghue, J. P. and Friehs, G. and Black, M. J.}, booktitle = {The 3rd International IEEE EMBS Conference on Neural Engineering}, pages = {486--489}, month = may, year = {2007}, doi = {}, month_numeric = {5} } |