6533b855fe1ef96bd12b077c
RESEARCH PRODUCT
Head and Body Coordination during Locomotion and Complex Movements
A. BerthozT. Pozzosubject
EngineeringInertial frame of referenceHead (linguistics)Plane (geometry)business.industryMovement (music)Orientation (geometry)Computer visionArtificial intelligencebusinessGazeInertial navigation systemMental rotationdescription
Publisher Summary This chapter discusses theory in which it is argued that during complex movements, the head is stabilized intermittently under the control of gaze, and that this stabilization allows the head to serve as an inertial guidance platform for the control of multilimb movement. The otolithic organs, sacculus and utriculus, are inertial detectors of linear acceleration of the head in the plane of their macula. It is well established that in normal gravity conditions, although the perceived gravitational vertical deviates from the objective vertical by a few degrees, gravitational reference is used not only for posture but also for perceptual tasks that involve orientation in space, including mental rotation. The movement is organized in successive steps, during which the head is stabilized at different angles, allowing the brain to utilize a series of different configurations of sensory inputs.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1994-01-01 |