Controlling steering and judging heading: Retinal flow, visual direction, and extraretinal information
Controlling steering and judging heading: Retinal flow, visual direction, and extraretinal information
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DOI：
10.1037/0096-1523.29.2.363
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发表时间：
2003-04-01
影响因子：
2.1
通讯作者：
Wann, J
中科院分区：
文献类型：
--
作者：
Wilkie, R;Wann, J
探讨了视网膜流动（RF）、视网膜外（ER）和自我中心视觉方向（VD）信息在运动控制中的作用。首先，研究了在篡改误码信息的情况下射频球头的恢复情况；结果证实了ER信号影响头球判断。然后将该任务转化为转向曲线路径，并通过退化或系统偏置RE来操纵VD的可用性和准确性，选择性地操纵RF和VD会导致较大的转向误差，为RF， ER和VD的组合提供了有力的证据。估计了RF和VD的相对权重。提出了一种结合冗余信息源的点吸引子模型，通过主动注视实现鲁棒运动控制和柔性轨迹规划。
The contribution of retinal flow (RF), extraretinal (ER), and egocentric visual direction (VD) information in locomotor control was explored. First, the recovery of heading from RF was examined when ER information was manipulated; results confirmed that ER signals affect heading judgments. Then the task was translated to steering curved paths, and the availability and veracity of VD were manipulated with either degraded or systematically biased RE Large steering errors resulted from selective manipulation of RF and VD, providing strong evidence for the combination of RF, ER, and VD. The relative weighting applied to RF and VD was estimated. A point-attractor model is proposed that combines redundant sources of information for robust locomotor control with flexible trajectory planning through active gaze.