Saccade–vergence dynamics and interaction in children and in adults
Saccade–vergence dynamics and interaction in children and in adults
复制标题
儿童和成人的扫视-聚散动态和相互作用
作者：
Qing Yang;Z. Kapoula
对14例正常儿童（4.5 ~ 12岁）和10例正常成人（22 ~ 44岁）的眼球运动（扫视、注视和扫视-注视联合眼球运动）的峰值速度、持续时间和准确性进行了研究。双眼的水平运动同时被一种光电装置——眼计记录下来。所有眼球运动、扫视和收敛（收敛和发散）的峰值速度在4.5岁时达到成人水平，并且在研究的年龄范围（4.5至44岁）内没有显著变化。只有幼儿（8岁以下）的收敛持续时间更长。在成人已知的组合运动中，扫视和收敛之间的相互作用，即扫视加速收敛（速度增加和持续时间减少）和扫视减速（速度减少和持续时间增加）在儿童中被发现是相似的。到4.5岁时，扫视和收敛的眼球运动精度平均较好，且不随年龄变化；一个例外是眼跳幅度的可变性，这在8岁以下的儿童中更高。综上所述，这些结果表明控制扫视、收敛及其相互作用的时空方面的脑干结构早熟。
Peak velocity, duration and accuracy of eye movements (saccade, vergence and combined saccade–vergence eye movements) were investigated in fourteen normal children (4.5 to 12 years of age) and ten normal adults (22 to 44 years of age). Horizontal movements from both eyes were recorded simultaneously by the oculometer, a photoelectric device. Peak velocity of all eye movements, saccades, and vergence (convergence and divergence), attains adult levels by the age of 4.5 years and there is no significant change over the age range studied (4.5 to 44 years). Vergence duration is longer only in young children (below 8 years of age). The reciprocal interaction between saccade and vergence during combined movements known in adults, i.e. acceleration of the vergence by the saccade (increase of velocity and decrease of duration) and deceleration of the saccade by the vergence (decrease of velocity and increase of duration) was found to be similar in children. The accuracy of eye movements is good on average for both saccades and vergence by the age of 4.5 years, and does not change with age; an exception is the variability of saccade amplitude, which is higher in children less than 8 years old. Taken together, the results indicate early maturation of brainstem structures controlling spatio-temporal aspects of saccades, vergence and their interaction.
人类的眼跳-聚散相互作用。
影响因子：
2.5
作者：
Zee,DS;Fitzgibbon,EJ;Optican,LM
通讯作者：
Optican,LM
与眼跳产生相关的脑干区域。
DOI：
--
发表时间：
1989
期刊：
Reviews of oculomotor research
影响因子：
--
作者：
Hepp,K;Henn,V;Vilis,T;Cohen,B
通讯作者：
Cohen,B