Rapid adaptation to Coriolis force perturbations of voluntary body sway
نویسندگان
چکیده
منابع مشابه
Adaptation to Coriolis perturbations of voluntary body sway transfers to preprogrammed fall-recovery behavior.
In a rotating environment, goal-oriented voluntary movements are initially disrupted in trajectory and endpoint, due to movement-contingent Coriolis forces, but accuracy is regained with additional movements. We studied whether adaptation acquired in a voluntary, goal-oriented postural swaying task performed during constant-velocity counterclockwise rotation (10 RPM) carries over to recovery fr...
متن کاملRapid adaptation to Coriolis force perturbations of arm trajectory.
1. Forward reaching movements made during body rotation generate tangential Coriolis forces that are proportional to the cross product of the angular velocity of rotation and the linear velocity of the arm. Coriolis forces are inertial forces that do not involve mechanical contact. Virtually no constant centrifugal forces will be present in the background when motion of the arm generates transi...
متن کاملGravitoinertial force background level affects adaptation to coriolis force perturbations of reaching movements.
We evaluated the combined effects on reaching movements of the transient, movement-dependent Coriolis forces and the static centrifugal forces generated in a rotating environment. Specifically, we assessed the effects of comparable Coriolis force perturbations in different static force backgrounds. Two groups of subjects made reaching movements toward a just-extinguished visual target before ro...
متن کاملMotor adaptation to Coriolis force perturbations of reaching movements: endpoint but not trajectory adaptation transfers to the nonexposed arm.
1. Reaching movements made in a rotating room generate Coriolis forces that are directly proportional to the cross product of the room's angular velocity and the arm's linear velocity. Such Coriolis forces are inertial forces not involving mechanical contact with the arm. 2. We measured the trajectories of arm movements made in darkness to a visual target that was extinguished at the onset of e...
متن کاملVoluntary sway and rapid orthogonal transitions of voluntary sway in young adults, and low and high fall-risk older adults.
BACKGROUND Falls amongst older people have been linked to reduced postural stability and slowed movement responses. The objective of this study was to examine differences in postural stability and the speed of response between young adults, low fall-risk older adults, and high fall-risk older adults during voluntary postural sway movements. METHODS Twenty-five young adults (25+/-4 years), and...
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ژورنال
عنوان ژورنال: Journal of Neurophysiology
سال: 2019
ISSN: 0022-3077,1522-1598
DOI: 10.1152/jn.00606.2018