title: High frequency activity correlates of robust movement in humans.
abstract: The neural circuitry underlying fast robust human motor control is not well understood. In this study we record neural activity from multiple stereotactic encephalograph (SEEG) depth electrodes in a human subject while he/she performs a center-out reaching task holding a robotic manipulandum that occasionally introduces an interfering force field. Collecting neural data from humans during motor tasks is rare, and SEEG provides an unusual opportunity to examine neural correlates of movement at a millisecond time scale in multiple brain regions. Time-frequency analysis shows that high frequency activity (50-150 Hz) increases significantly in the left precuneus and left hippocampus when the subject is compensating for a perturbation to their movement. These increases in activity occur with different durations indicating differing roles in the motor control process.
authors.forename: Matthew S D
authors.initials: MS
authors.lastname: Kerr
authors.forename: Kevin
authors.initials: K
authors.lastname: Kahn
authors.lastname: Hyun-Joo Park
authors.forename: Susan
authors.initials: S
authors.lastname: Thompson
authors.forename: Stephanie
authors.initials: S
authors.lastname: Hao
authors.forename: Juan
authors.initials: J
authors.lastname: Bulacio
authors.forename: Jorge A
authors.initials: JA
authors.lastname: Gonzalez-Martinez
authors.forename: John
authors.initials: J
authors.lastname: Gale
authors.forename: Sridevi V
authors.initials: SV
authors.lastname: Sarma
mesh_terms: D001921:Brain / Q000502:physiology*; D004566:Electrodes; D004569:Electroencephalography; D004827:Epilepsy / Q000503:physiopathology; D006624:Hippocampus / Q000502:physiology; D006801:Humans; D008279:Magnetic Resonance Imaging; D011846:Radio Waves