Heenan Megan L, Scheidt Robert A, Beardsley Scott A
Biomedical Engineering Department, Marquette University, Milwaukee, WI 53233, USA.
Annu Int Conf IEEE Eng Med Biol Soc. 2011;2011:7356-9. doi: 10.1109/IEMBS.2011.6091839.
An ongoing debate in the field of motor control considers how the brain uses sensory information to guide the formation of motor commands to regulate movement accuracy. Recent research has shown that the brain may use visual and proprioceptive information differently for stabilization of limb posture (compensatory movements) and for controlling goal-directed limb trajectory (pursuit movements). Using a series of five experiments and linear systems identification techniques, we modeled and estimated the sensorimotor control parameters that characterize the human motor response to kinematic performance errors during continuous compensatory and pursuit tracking tasks. Our findings further support the idea that pursuit and compensatory movements of the limbs are differentially controlled.
运动控制领域中一个持续存在的争论是，大脑如何利用感官信息来指导运动指令的形成，以调节运动的准确性。最近的研究表明，大脑可能以不同方式使用视觉和本体感觉信息来稳定肢体姿势（补偿性运动）以及控制目标导向的肢体轨迹（追踪运动）。通过一系列五个实验以及线性系统识别技术，我们对感觉运动控制参数进行了建模和估计，这些参数表征了人类在连续补偿性和追踪性跟踪任务中对运动学性能误差的运动反应。我们的研究结果进一步支持了肢体的追踪运动和补偿性运动受到不同控制这一观点。
