PRIMARY AND SECONDARY SACCADES TO GOALS DEFINED BY INSTRUCTIONS
PRIMARY AND SECONDARY SACCADES TO GOALS DEFINED BY INSTRUCTIONS
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DOI：
10.1016/0042-6989(78)90218-3
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发表时间：
1978-01-01
期刊：
影响因子：
1.8
通讯作者：
HALLETT, PE
中科院分区：
文献类型：
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作者：
HALLETT, PE
一个发光点在黑暗中水平移动，受试者跟踪它（正常任务），或者被指示通过一些其他水平眼睛运动（例如，相等且相反的运动，即反扫视任务）。在反任务的眼动的特点是长潜伏期，不准确的主扫视，有时显示轻微的异常速度轮廓。次级扫视是大的、矫正的，比初级潜伏期短，并且不基于视网膜反馈。人类扫视系统被优化用于但不限于聚焦。高度特异质的抗潜伏期数据可以通过参考Wheeless 2步范式来标准化。提出了一种机制。
A luminous point steps horizontally in the dark, and the subject tracks it (normal task), or is instructed to respond by some other horizontal eye movement (e.g., an equal and opposite movement, the anti-saccade task). Eye movements in the anti-task are characterized by long latency, inaccurate primary saccades which sometimes show minor anomalies in velocity profile. The secondary saccades are large, corrective, of shorter than primary latency, and are not based on retinal feedback. The human saccadic system is optimized for, but not restricted to, foveation. The highly idiosyncratic anti latency data can be normalized by reference to the Wheeless 2-step paradigm. A mechanism is proposed.