A two dimensional model for saccade generation
A two dimensional model for saccade generation
复制标题
眼跳生成的二维模型
DOI：
10.1007/bf00336978
复制
发表时间：
1985
影响因子：
1.9
通讯作者：
T. Vilis
中科院分区：
文献类型：
--
作者：
D. Tweed;T. Vilis
通过对一维局部反馈模型的扩展和改进，建立了斜向扫视的产生模型。提出视觉系统在惯性坐标系中存储目标位置，而引导扫视的反馈回路在视网膜坐标系中工作。为了在所有子午线中实现向心和离心扫视的直线轨迹，比较器将电机误差计算为矢量，并使用矢量误差信号来驱动两个正交作用的爆发发生器。当眼外肌的强度不相等时，产生直的扫视轨迹需要向运动神经元引入爆发性紧张性细胞输入。该模型占两个站点的刺激的上级丘和额叶眼场的结果，允许同时激活一个以上的比较。假设存在多个比较器表明，运动误差可以计算地形。
A model for the generation of oblique saccades is constructed by extending and modifying the one dimensional local feedback model. It is proposed that the visual system stores target location in inertial coordinates, but that the feedback loop which guides saccades works in retinotopic coordinates. To achieve straight trajectories for centripetal and centrifugal saccades in all meridians, a comparator computes motor error as a vector and uses the vectorial error signal to drive two orthogonally-acting burst generators. The generation of straight saccade trajectories when the extraocular muscles are of unequal strengths requires the introduction of a burst-tonic cell input to motor neurons. The model accounts for the results of two-site stimulation of the superior colliculus and frontal eye fields by allowing simultaneous activation of more than one comparator. The postulated existence of multiple comparators suggests that motor error may be computed topographically.
影响因子：
56.9
作者：
GUTHRIE, BL;PORTER, JD;SPARKS, DL
通讯作者：
SPARKS, DL
影响因子：
2.5
作者：
VANGISBERGEN, JAM;ROBINSON, DA;GIELEN, S
通讯作者：
GIELEN, S