Spectral Changes in Cortical Surface Potentials during Motor Movement
University of Washington · Neurological Surgery · +5 more institutions
Abstract
In the first large study of its kind, we quantified changes in electrocorticographic signals associated with motor movement across 22 subjects with subdural electrode arrays placed for identification of seizure foci. Patients underwent a 5-7 d monitoring period with array placement, before seizure focus resection, and during this time they participated in the study. An interval-based motor-repetition task produced consistent and quantifiable spectral shifts that were mapped on a Talairach-standardized template cortex. Maps were created independently for a high-frequency band (HFB) (76-100 Hz) and a low-frequency band (LFB) (8-32 Hz) for several different movement modalities in each subject. The power in…
Citation impact
- FWCI
- 13.62
- Percentile
- 100%
- References
- 52
Authors
8Topics & keywords
- Stereoelectroencephalography
- Motor cortex
- Neuroscience
- Electrocorticography
- Cortex (anatomy)
- Electroencephalography
- Sensorimotor cortex
- Psychology