Temporal alignment of electrocorticographic recordings using upper limb kinematics
- Resource Type
- Conference
- Authors
- Talakoub, Omid; Cesar, Marquez-Chin; Chen, Robert; Popovic, Milos R.; Wong, Willy
- Source
- 2011 5th International IEEE/EMBS Conference on Neural Engineering Neural Engineering (NER), 2011 5th International IEEE/EMBS Conference on. :625-628 Apr, 2011
- Subject
- Bioengineering
Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Computing and Processing
Signal Processing and Analysis
Robotics and Control Systems
General Topics for Engineers
Kinematics
Electrodes
Time frequency analysis
Humans
Muscles
Brain
Spectrogram
- Language
- ISSN
- 1948-3546
1948-3554
The purpose of this study is to align electrocortico-graphic (ECoG) recordings using the limb kinematics in order to identify the neural activities attributed to the movement. This illustrates the underlying neural activity related to the upper limb movements. The functional relationship between the movement-related brain activity and kinematics of the limb would illustrate the neural processes that may be used to help restore mobility in individuals with paralysis. The identified neural processes may also help neuroscientists understand how the human nervous system works. Two subjects with subdural electrodes implanted over the primary motor cortex were asked to perform various motor tasks with the specific arm contralateral to the site of electrode implantation. ECoG signals and upper limb kinematics were recorded simultaneously while the participants were performing the movements. We obtained time-averaged and averaged spectrogram of the cortical activity of specific movements performed by the participants. We found a high correlation between the averaged signals and the upper limb kinematics.