Adaptive modification of saccadic eye movements.
Adaptive modification of saccadic eye movements.
复制标题
眼球扫视运动的适应性修改。
DOI：
10.1037//0096-1523.18.4.922
复制
发表时间：
1992
期刊：
影响因子：
--
通讯作者：
Helfrich,MK
中科院分区：
文献类型：
--
作者：
Abrams,RA;Dobkin,RS;Helfrich,MK
据报道，在扫视期间眼跳眼球运动的目标发生了移位。 Ss 通过改变后续扫视的幅度来适应位移以进行补偿。对扫视轨迹运动学细节的分析表明，这种适应并不是由感知目标位置的简单重新映射引起的。相反，这种适应似乎是通过改变扫视系统增益来完成的。增益变化主要由扫视力脉冲幅度的变化引起，而不是脉冲持续时间的变化。这些结果对正常情况下眼跳的机制有影响。特别是，人们可以单独调整用于产生眼跳的力脉冲的幅度和持续时间。（PsycINFO 数据库记录 (c) 2016 APA，保留所有权利）
Experiments are reported in which the target for a saccadic eye movement was displaced during the saccade. Ss adapted to the displacement by altering the amplitudes of subsequent saccades to compensate for it. Analysis of kinematic details of the saccade trajectories revealed that the adaptation did not arise from a simple remapping of perceived target locations. Instead, the adaptation appeared to be accomplished by a change in the gain of the saccadic system. The gain change arose primarily from a change in the magnitude of the force pulse for the saccade, not a change in the duration of the pulse. These results have implications for the mechanisms that underlie saccades in normal situations. In particular, people can separately adjust the magnitudes and durations of the force pulses used to produce saccades.(PsycINFO Database Record (c) 2016 APA, all rights reserved)